WO2016149871A1 - 接收设备和接收信号的处理方法 - Google Patents

接收设备和接收信号的处理方法 Download PDF

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Publication number
WO2016149871A1
WO2016149871A1 PCT/CN2015/074741 CN2015074741W WO2016149871A1 WO 2016149871 A1 WO2016149871 A1 WO 2016149871A1 CN 2015074741 W CN2015074741 W CN 2015074741W WO 2016149871 A1 WO2016149871 A1 WO 2016149871A1
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WO
WIPO (PCT)
Prior art keywords
signal
received
quality
received signal
combined
Prior art date
Application number
PCT/CN2015/074741
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English (en)
French (fr)
Inventor
李先锋
庞彦钊
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP15885810.0A priority Critical patent/EP3258616B1/en
Priority to PCT/CN2015/074741 priority patent/WO2016149871A1/zh
Priority to CN201580049340.6A priority patent/CN106716868A/zh
Publication of WO2016149871A1 publication Critical patent/WO2016149871A1/zh
Priority to US15/708,607 priority patent/US10090947B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/336—Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/0848—Joint weighting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
    • H04L1/203—Details of error rate determination, e.g. BER, FER or WER

Definitions

  • the embodiments of the present invention relate to the field of communications technologies, and in particular, to a receiving device and a method for processing a received signal.
  • FIG. 1 is a schematic diagram of a prior art spatial diversity system.
  • the transmitting device has only one transmitting antenna in the on state, and the other transmitting antenna is silent, and the receiving antennas of the receiving device (in the figure, two receiving antenna examples) are installed as long as the space meets the preset.
  • each receiving antenna can receive the signal sent by the working transmitting antenna, that is, for the receiving device, multiple receiving signals can be received at the same time; specifically, the signal transmitted by the transmitting antenna in FIG. 1 is transmitted through the transmission path.
  • the transmission path 1 and the transmission path 2 are respectively received by the two receiving antennas of the receiving device, that is, the obtained two received signals are the same, but since there is no correlation between the transmission path 1 and the transmission path 2, the receiving device can follow two rules according to certain rules.
  • the path reception signals are combined so that the reception gain can be improved for the signal transmitted by the transmission antenna.
  • the signal when the signal is received by using the above prior art, it is found that the signal transmitted through the transmission path 1 and the transmission path 2 is interfered by the communication environment during transmission, which may cause the quality of one channel to deteriorate, and the received two channels are received.
  • the signal-to-noise ratio between the signals is quite different. If the two received signals are still combined at this time, the combined signals will not increase the receiving gain, but the quality will decrease, which will affect the subsequent signal processing.
  • Embodiments of the present invention provide a receiving device and a processing method for receiving a signal, which are used to improve communication performance of a spatial diversity system.
  • an embodiment of the present invention provides a receiving device, including at least: N receiving antennas, a combining module, a demodulation module, and a monitoring control module; the N receiving antennas, the combining module, and the demodulation module. Communicating with the monitoring module; the combining module is in communication with the monitoring control module;
  • the demodulation module is configured to demodulate the N received signals to obtain quality parameters of the N received signals, and send the quality parameters of the N received signals to the monitoring control module; the N received signals are adopted Receiving, by the N receiving antennas, signals sent by the same transmitting antenna on the transmitting device;
  • the monitoring control module is configured to monitor quality parameters of the N received signals in real time
  • the monitoring control module is configured to predict, according to the quality parameter of the N-channel signal, whether the quality of the first combined signal output by the combining module after combining the N-channel received signals is better than the N-channel received signals Optimal quality received signal;
  • the monitoring control module predicts that the quality of the first combined signal is better than the quality of the received signal in the N received signal, determining that the combining module performs combining processing on the N received signals
  • the first combined signal is a signal to be processed
  • the monitoring control module predicts that the quality of the first combined signal is inferior to the quality of the received signal in the N received signal, determining a signal to be processed according to the M received signal in the N received signal ;
  • N is an integer not less than 2
  • M is an integer greater than 0 and less than N.
  • the method further includes a selection module, the selection module is communicably connected to the merging module, and is further communicably connected to the N receiving antennas;
  • the monitoring control module includes a difference calculating unit and a weighting coefficient determining unit; the weighting coefficient determining unit is communicably connected to the combining module;
  • the monitoring control module is configured to determine a to-be-processed signal according to the M-channel received signal in the N-channel received signals, including:
  • the difference calculation unit is configured to notify the selection module that the merge module performs a combining process on the N-channel received signals, and the first combined signal that is output is not a pending signal, triggering the selection module For determining, in the N received signals, a received signal that satisfies a preset condition as a signal to be processed; or
  • the monitoring control module is configured to receive signals according to the N channels.
  • the M channel receiving signal determines the signal to be processed, including:
  • the difference calculation unit is configured to notify the weighting coefficient determination unit of the merge indication information
  • the weighting coefficient determining unit is configured to control the merging module according to the merging indication information, Combining all the received signals of the N received signals that do not cause the quality of the first combined signal to be inferior to the quality of the received signals of the N received signals, and outputting the second combination to the selection module Road signal.
  • the selection module includes a cache check unit and a determining unit, the cache check unit and the determining unit are communicably connected, and the cache check unit and the Said merge module communication connection;
  • the buffer checking unit is configured to: after the monitoring control module determines that the first combining signal output by the combining module after combining the N receiving signals is a to-be-processed signal, the merging module Outputting the first combined signal for verification;
  • the determining unit is configured to determine that the first combined signal is a to-be-processed signal when the buffer checking unit determines that the first combined signal is in an error-free state.
  • the difference calculating unit when the determining unit is connected to the difference calculating unit, the difference calculating unit is further configured to be used in the determining unit to be used when Determining, by the buffer checking unit, that the first combining signal is in an error-free state, before determining that the first combining signal is a signal to be processed, notifying the determining unit that the combining module merges the N receiving signals The first combined signal output after processing is a signal to be processed.
  • the selection module includes a cache check unit and a determining unit, the cache check unit and the determining unit are communicatively connected, and the cache check unit and the Said merge module communication connection;
  • the buffer checking unit is configured to receive the second combining signal output by the combining module, and perform verification on the second combining signal;
  • the determining unit is configured to determine that the second combined signal is a to-be-processed signal when the buffer checking unit determines that the second combined signal is in an error-free state.
  • the cache check unit determines that the first combined signal is in an error state, or determines that the second combined signal is in error
  • the determining unit is further configured to determine, in the N received signals, that the received signal determined by the cache check unit to be in an error-free state is a signal to be processed.
  • the selection module includes a cache check unit and a determining unit, the cache check unit and the determining unit are communicably connected, and the cache check unit and the a merge module communication connection; the determining unit is in communication with the difference calculation unit connection;
  • the selection module is configured to determine, in the N received signals, a received signal that meets a preset condition as a to-be-processed signal, including:
  • the buffer checking unit is configured to check the received signals sent by the N receiving antennas
  • the determining unit is configured to determine, in the N received signals, a received signal that is determined by the cache check unit to be in an error-free state as a to-be-processed signal.
  • the difference calculation unit is further configured to: determine, in the N-channel received signal, that the path is determined by the cache check unit to be error-free. Before the received signal of the state is the signal to be processed, the first combining signal outputted by the combining unit and the combining unit after the combining module performs the combining processing on the N receiving signals is not a signal to be processed.
  • the monitoring control module further includes an optimal determining unit, the optimal determining unit, the demodulating module, and the difference Value calculation unit communication connection;
  • the monitoring control module is configured to monitor the quality parameters of the N received signals in real time, including:
  • the optimal determining unit is configured to determine, according to a quality parameter of the N received signals acquired by the demodulation module, a quality optimal received signal in the N received signals;
  • the difference calculation unit is configured to subtract the quality parameter of the quality-preferred received signal from the quality parameter of each of the N-channel received signals to obtain a difference corresponding to each received signal;
  • the difference calculation unit is further configured to update an enable state of each received signal according to a difference corresponding to each received signal.
  • the difference calculation unit is configured to receive signals for each channel according to the difference corresponding to each received signal.
  • the enable status is updated, including:
  • the difference calculating unit is specifically configured to update the enabled state of the received signal to be invalid;
  • the difference calculating unit keeps the enabled state of the received signal as valid
  • the difference calculating unit updates the enabled state of the received signal to be valid
  • the difference calculating unit keeps the enabled state of the received signal as invalid.
  • the monitoring control module is configured to predict whether the quality of the first combined signal output after combining the N received signals is better than the N receiving The best quality received signal in the signal, including:
  • the difference calculation unit is configured to determine whether a received signal with an enabled state is invalid in the N received signal
  • the difference calculation unit determines that the quality of the first combined signal is better than the best received signal of the N received signals
  • the difference calculation unit determines that the quality of the first combined signal is inferior to the quality of the received signal in the N received signal.
  • the merging indication information is an enabled state of the N way receiving signals
  • the weighting coefficient determining unit is configured to control the merging module according to the merging indication information, and the quality of the first merging signal is not inferior to the quality of the N multiplexed signal in the N receiving signals. All the received signals of the received signal are combined, and the second combined signal is output to the selection module, including:
  • the weighting coefficient determining unit is specifically configured to set a weighting coefficient of the NM channel receiving signal whose inactive state is invalid in the N channel receiving signals to 0, and determine a weighting coefficient for the M channel receiving signal whose enabling state is valid, The M-channel received signal that is valid for the merging module is merged, and the second merging signal is output.
  • the cache check unit is further configured to buffer the first combined signal or the second combined signal The N channels of received signals are buffered.
  • an embodiment of the present invention provides a method for processing a received signal, including:
  • the N-channel received signal is obtained by using N receiving antennas to receive signals transmitted by the same transmitting antenna on the transmitting device;
  • the quality of the first combined signal is predicted to be better than the quality of the N received signal Receiving a signal, determining that the first combined signal is a signal to be processed;
  • N is an integer not less than 2
  • M is an integer greater than 0 and less than N.
  • determining the to-be-processed signal according to the M-channel received signal in the N-channel received signals includes:
  • the method before the determining that the first combined signal is a signal to be processed, the method further includes:
  • the method before determining that the second combined signal is a signal to be processed, the method further includes:
  • the method further includes :
  • a received signal in which any of the paths is in an error-free state is determined as a signal to be processed in the N received signals.
  • determining, in the N received signals, a received signal that satisfies a preset condition is a to-be-processed signal, including:
  • the received signal in the N-channel received signal is determined to be a signal to be processed.
  • the quality parameters of the N received signals are monitored in real time, including:
  • the quality parameter of the quality-preferred received signal and each of the N-channel received signals The quality parameters of the number are subtracted, and the difference corresponding to each received signal is obtained;
  • the enabled state of each received signal is updated according to the difference corresponding to each received signal.
  • updating the enabled state includes:
  • the enabled state of the received signal is valid, and the difference corresponding to the received signal is greater than the upper limit, the enabled state of the received signal is updated to be invalid;
  • the enabled state of the received signal is valid, and the difference corresponding to the received signal is not greater than the upper limit, the enabled state of the received signal is enabled;
  • the enabled state of the received signal is invalid, and the difference corresponding to the received signal is less than a lower limit, the enabled state of the received signal is updated to be valid;
  • the enabled state of the received signal is invalid, and the difference corresponding to the received signal is not less than a lower limit, the enabled state of the received signal is invalid.
  • the eighth embodiment whether the quality of the first combined signal obtained by combining the N received signals is better than the N according to the quality parameter of the N signal
  • the best quality received signal in the received signal including:
  • all of the N received signals do not cause the quality of the first combined signal to be inferior to the quality of the N received signal.
  • the signals are combined to obtain a second combined signal, including:
  • the N-M channel receiving signal whose enable state is invalid in the N-channel receiving signal is screened out, and the M-channel receiving signal whose enabling state is valid is combined to obtain the second combining signal.
  • the method further includes:
  • the N received signals are reserved.
  • Embodiments of the present invention provide a receiving device and a method for processing a received signal, by monitoring N paths.
  • Receiving a signal determining whether the quality of the first combined signal obtained by combining the N received signals is degraded, and determining, according to the determination result, whether the first combined signal is a pending signal for subsequent signal processing, ie
  • the quality of the first combined signal is degraded, the first combined signal is not continuously used to avoid affecting the progress of the communication activity, and when the quality of the first combined signal is not degraded, the first combined signal is selected in time. Making full use of the higher receiving gain brought by the first combined signal, the efficiency of the space diversity system is increased, and the communication performance is improved.
  • FIG. 1 is a schematic diagram of a spatial diversity system in the prior art
  • Embodiment 1 of a receiving device according to the present invention is a schematic structural diagram of Embodiment 1 of a receiving device according to the present invention.
  • FIG. 3 is a schematic diagram of a first structure of a second embodiment of a receiving device according to the present invention.
  • Embodiment 4 is a second schematic structural diagram of Embodiment 2 of a receiving device according to the present invention.
  • FIG. 5 is a schematic structural diagram of Embodiment 3 of a receiving device according to the present invention.
  • Embodiment 5 of a receiving device is a schematic structural diagram of Embodiment 5 of a receiving device according to the present invention.
  • FIG. 7 is a schematic diagram of a standard constellation point in Embodiment 5 of a receiving device according to the present invention.
  • Embodiment 6 of a receiving device according to the present invention is a schematic structural diagram of Embodiment 6 of a receiving device according to the present invention.
  • Embodiment 7 of a receiving device is a schematic structural diagram of Embodiment 7 of a receiving device according to the present invention.
  • Embodiment 8 of a receiving device according to the present invention.
  • Embodiment 9 is a schematic structural diagram of Embodiment 9 of a receiving device according to the present invention.
  • Embodiment 10 is a schematic structural diagram of Embodiment 10 of a receiving device according to the present invention.
  • FIG. 13 is a schematic flowchart diagram of Embodiment 1 of a method for processing a received signal according to the present invention
  • FIG. 14 is a schematic flowchart diagram of Embodiment 2 of a method for processing a received signal according to the present invention.
  • FIG. 16 is a schematic flowchart diagram of Embodiment 4 of a method for processing a received signal according to the present invention.
  • FIG. 2 is a schematic structural diagram of Embodiment 1 of a receiving device according to the present invention.
  • the receiving device is applicable to the spatial diversity system shown in FIG. 1.
  • the receiving device includes at least: N receiving antennas (T1 to TN), a combining module H, a demodulation module A, and monitoring control.
  • Module C the N receiving antennas T1 to TN are communicatively connected to the combining module H, the demodulation module A, and the monitoring control module C
  • the combining module H is communicatively connected to the monitoring control module C;
  • the monitoring control module C is configured to monitor the quality parameters of the N received signals in real time
  • the demodulation module A is configured to demodulate the N received signals to obtain quality parameters of the N received signals, and send the quality parameters of the N received signals to the monitoring control module C; the N receiving signals are It is obtained by receiving the signals transmitted by the same transmitting antenna on the transmitting device by using the N receiving antennas T1 to TN.
  • the monitoring control module C is configured to predict, according to the quality parameter of the N-channel signal, whether the quality of the first combined signal output by the combining module H after combining the N-channel received signals is better than the N-channel receiving The best quality received signal in the signal;
  • the above N is an integer of not less than 2. It can be understood that, when communication between the transmitting device and the receiving device is performed, in order to improve communication reliability, the receiving device uses N receiving antennas to perform the same signal transmitted by the transmitting device with the same transmitting antenna. Receiving, obtaining N receiving signals; that is, N receiving signals are generated by transmitting signals of one transmitting antenna of the above transmitting device through N different paths; then the receiving device performs combining processing on the N receiving signals to improve receiving gain .
  • the same signal is transmitted through different paths, and the performance of the generated N-channel received signals may be different, resulting in degradation of the performance of the combined signal obtained after the combination, which affects the subsequent processing of the signal, so
  • the N receiving antennas continuously receive the signals sent by the transmitting device, and the monitoring control module in the receiving device also needs to monitor the quality parameters of the N receiving signals in real time, and know whether the performance of the combined signals obtained after the combining process is degraded, and the above quality
  • the parameters are obtained by the demodulation module demodulating the signal.
  • the monitoring control module C predicts that the quality of the first combining signal is better than the quality optimal receiving signal of the N receiving signals, determining that the combining module H combines the N receiving signals
  • the first combined signal outputted later is a signal to be processed
  • the monitoring control module C predicts that the quality of the first combined signal obtained by combining the N-channel received signals by the combining module H is not deteriorated according to the quality parameter of the N-channel signal, and the receiving gain of the first combined signal is high.
  • the receiving gain of the received signal in any of the N received signals is performed by the first combined signal for subsequent signal processing, which can effectively improve the communication performance between the transmitting device and the receiving device, so the first combined signal is determined as the signal to be processed. , continue with subsequent signal processing.
  • the monitoring control module C predicts that the quality of the first combined signal is inferior to the quality of the N received signal, determining the to-be-processed according to the M received signal in the N received signal Signal; where M is an integer greater than 0 and less than N
  • the monitoring control module C determines, according to the quality parameter of the N-channel signal, the quality degradation of the first combined signal obtained by combining the N received signals, and the gain of the first combined signal is not effectively improved. If the first combining signal is used to continue the subsequent processing, such as decoding, etc., an error or the like may be disadvantageous for subsequent processing. Therefore, in this embodiment, signal processing according to the first combined signal is not continued, but Re-determining the signal to be processed, for example, determining one received signal from the N received signals as a to-be-processed signal, or combining some of the received signals of the N received signals to obtain a combined road with high quality and high receiving gain signal.
  • the transmission and reception of signals are continuous, so that the N receiving antennas continuously receive signals, and the demodulation module A and the monitoring control module C also operate in real time, so each time the signals are received according to the N channels.
  • the quality parameter predicts that the quality of the first combined signal obtained after the combined processing of the N received signals does not deteriorate, and subsequent signal processing may be continued according to the first combined signal; when receiving signals according to the N channels
  • the quality parameter predicts that the quality of the first combined signal obtained after the combined processing of the N received signals is degraded, and the signal processing is no longer continued according to the first combined signal, thereby avoiding adverse effects on the subsequent processing of the signal;
  • the present embodiment flexibly combines the quality parameters of the current N received signals, and the first combined signal is at the current moment.
  • the first combined signal is selected as the signal to be processed, and the quality is not wasted.
  • Combined signal is brought high reception gain so that the space where the receiving apparatus and a receiving apparatus of a diversity system can operate in a high-profile mode, an effect of increasing the communication distance Large, improve the communication capacity, improve the efficiency of the space diversity system; and when the first combined signal is degraded, the first combined signal is flexibly screened out, and the signal processing is no longer continued according to the first combined signal, avoiding It has an adverse effect on the receiving process of the signal; it can be understood that, at the next moment after screening the first combined signal, if the quality of the first combined signal is determined to be not deteriorated at the next moment by monitoring, and is not deteriorated When the state continues for a preset duration, the first combined signal is selected again, and the higher receiving gain of the first combined signal is utilized in time.
  • the process signal to be processed that is, when the quality of the first combined signal deteriorates, the first combined signal is not continuously used to avoid affecting the progress of the communication activity, and when the quality of the first combined signal is not degraded, timely
  • the first combined signal is selected to make full use of the higher receiving gain brought by the first combined signal, so that the benefit of the spatial diversity system is increased, and the communication performance is improved.
  • FIG. 3 is a first schematic structural diagram of Embodiment 2 of a receiving device according to the present invention
  • FIG. 4 is a second structural schematic diagram of Embodiment 2 of a receiving device according to the present invention. As shown in FIG. 3 and FIG. 4, this embodiment is further described based on the embodiment shown in FIG. 2.
  • the device further includes a selection module R, and the selection module R and the The merge module H communication connection is further connected to the N receiving antennas T1 TTN;
  • the monitoring control module C includes a difference calculating unit C1 and a weighting coefficient determining unit C2; the weighting coefficient determining unit C2 is communicably connected to the combining module H;
  • the monitoring control module C is configured to determine a to-be-processed signal according to the M-channel received signal in the N-channel received signals, including:
  • the difference calculation unit C1 is configured to notify the selection module R that the merged module H performs a merge process on the N-channel received signals, and the first combined signal that is output is not a pending signal, triggering the
  • the selection module R is configured to determine, in the N received signals, a received signal that satisfies a preset condition as a signal to be processed; or
  • the monitoring control module C is used to The M-channel received signal in the N-channel received signal determines the signal to be processed, including:
  • the difference calculation unit C1 is configured to notify the weighting coefficient determination unit C2 of the merge indication letter interest
  • the weighting coefficient determining unit C2 is configured to control the merging module H according to the merging indication information, and the quality of the first merging signal is not inferior to the quality of the N multiplexed signal in the N receiving signals. All the received signals of the excellent received signals are combined, and the second combined signal is output to the selection module R.
  • the monitoring control module C predicts whether the first combined signal can be predicted as a signal to be processed, and the selection module R can monitor the signal to be processed determined by the monitoring control module C according to the prediction result of the monitoring control module C (eg, According to the notification of the monitoring control module C, one received signal selected in the N received signals or the second combined signal outputted by the combining module is transmitted to a subsequent processing module (not shown).
  • the process signal to be processed that is, when the quality of the first combined signal deteriorates, the first combined signal is not continuously used to avoid affecting the progress of the communication activity, and when the quality of the first combined signal is not degraded, timely
  • the first combined signal is selected to make full use of the higher receiving gain brought by the first combined signal, so that the benefit of the spatial diversity system is increased, and the communication performance is improved.
  • FIG. 5 is a schematic structural diagram of Embodiment 3 of a receiving device according to the present invention. As shown in FIG. 5, this embodiment is based on the foregoing schematic diagram of the structure shown in FIG. 3, and further description is made:
  • the selection module R includes a cache check unit R1 and a determination unit R2.
  • the cache check unit R1 is connected to the determination unit R2, and the cache check unit R1 is communicatively connected to the merge module H.
  • the cache check unit R1 is communicatively coupled to the output terminal O of the merge module H; the cache check unit R1 is also communicatively coupled to the difference calculation unit C1;
  • the monitoring control module further includes an optimal determining unit C3, where the optimal determining unit C3 is communicatively connected to the demodulating module A and the difference calculating unit C1;
  • the optimal determining unit C3 is configured to determine, according to a quality parameter of the N received signals acquired by the demodulation module A, a quality optimal received signal in the N received signals;
  • the difference calculation unit C1 is configured to subtract the quality parameter of the quality-preferred received signal from the quality parameter of each of the N-channel received signals, and obtain a difference corresponding to each received signal;
  • the difference calculation unit C1 is further configured to receive each channel according to a difference corresponding to each received signal The enable state of the signal is updated.
  • the difference calculation unit C1 when updating the enabled state of each received signal, includes:
  • the difference calculating unit C1 is specifically configured to update the enabled state of the received signal to be invalid;
  • the difference calculating unit C1 keeps the enabled state of the received signal as valid
  • the difference calculating unit C1 updates the enabled state of the received signal to be valid
  • the difference calculating unit C1 keeps the enabled state of the received signal as invalid.
  • the difference calculating unit C1 After updating the enabled state of the received signals, the difference calculating unit C1 is configured to determine whether the received signal with the enabled state is invalid in the N received signals.
  • the difference calculation unit C1 predicts that the quality of the first combined signal is better than the best received signal of the N received signals
  • the difference calculation unit C1 predicts that the quality of the first combined signal is inferior to the quality of the N received signal.
  • the difference calculating unit C1 may directly perform the difference between the quality parameters of the two received signals, if the quality parameters of the two received signals are between When the difference exceeds the preset value, it can be determined that the quality of the first combined signal obtained by combining the two received signals is inferior to the quality of one of the two received signals.
  • the difference calculation unit C1 is further configured to notify the determining unit R2 that the first combining signal output by the combining module H after combining the N receiving signals is a to-be-processed signal.
  • the determining unit R2 in the selection module R preferentially selects the combined signal; but is subject to external temperature changes or external stress (such as hail On the transmitting device or the receiving device's outer casing), there is a phase in the N-channel receiving signal.
  • the received signal of the hop if the received signal of the phase hopping participates in the merging process, the obtained combined signal does not deteriorate, but when the information is acquired according to the combined signal, an error occurs, which affects the reception of the information;
  • the receiving signal of the phase jump cannot be found by the monitoring control module C.
  • the buffer checking unit R1 is provided in the selecting module R, so that the monitoring control module C determines that the first combined signal is the signal to be processed, and the buffer checking unit R1 Performing further detection on the first combined signal; for example, an FEC (Forward Error Correction) check may be used to determine whether the first combined signal is in an error-free state;
  • FEC Forward Error Correction
  • the buffer check unit R1 in the selection module R is configured to determine, at the difference calculation unit C1, the first combined signal that is output after the merge module H performs the combining process on the N received signals. After the signal to be processed, verify the first combined signal output by the combining module H;
  • the determining unit R2 is configured to determine that the first combined signal is a to-be-processed signal when the buffer checking unit R1 determines that the first combined signal is in an error-free state.
  • the determining unit R2 determines that the first combining signal is in the error state, it is determined in the N receiving signals that the received signal determined by the buffer checking unit R1 to be in the error-free state is the signal to be processed.
  • the difference calculating unit C1 is further configured to notify the determining unit R1 that the difference calculating unit C1 predicts that the quality of the first combining signal is inferior to the quality of the received signal in the N received signal.
  • the first combining signal output by the merging module H after combining the N receiving signals is not a signal to be processed; and when the determining module R determines the signal to be processed, the buffer checking unit R1 is used for Performing verification on the received signals sent by the N receiving antennas;
  • the determining unit R2 is configured to determine, in the N received signals, a received signal that is determined by the cache check unit R1 to be in an error-free state as a signal to be processed.
  • the cache check module R1 is further configured to cache the N receive signals when the first combined signal is buffered.
  • the process by monitoring the N received signals, whether the quality of the first combined signal obtained by combining the N received signals is judged is degraded, and determining whether the first combined signal is used for the subsequent signal according to the determination result.
  • the processed signal to be processed that is, when the quality of the first combined signal deteriorates, The first combined signal will not be used continuously to avoid affecting the communication activity, and when the quality of the first combined signal is not degraded, the first combined signal is selected in time to make full use of the first combined signal.
  • the high receiving gain increases the efficiency of the space diversity system and improves communication performance.
  • FIG. 6 is a schematic structural diagram of Embodiment 5 of a receiving device according to the present invention. As shown in FIG. 6, this embodiment is further described on the basis of the embodiment shown in FIG. 5. Specifically, when N receiving antennas receive signals transmitted by the same transmitting antenna, the sending is performed. The signals transmitted by the antennas are transmitted through different transmission paths, so that the time at which the N receiving antennas receive the received signals is different. Therefore, the merging module H in this embodiment further includes the time aligning unit H1, and thus the N channels received by the N receiving antennas. The receiving signal is input to the demodulation module A, and is also input to the time alignment unit H1, so that the N channels of the received signal are matched by the merging unit H2, and then output to the selection module R;
  • the values of the weighting coefficients (W1 to WN) determined for the N received signals (Z1 to ZN) received at the current time are not necessarily applicable to the N received signals received at the next time.
  • a feedback control mechanism is adopted, that is, while the first combined signal Q1 is input to the selection module R, Q1 is also transmitted to the feedback control module F, and the feedback control module F determines the desired signal corresponding to Q1 according to Q1, and then makes the expectation The signal and Q1 are subtracted, and the obtained degree of difference is fed back to the weighting coefficient determining unit C2, so that the weighting coefficient determining module C2 adaptively adjusts the values of W1 to WN according to the degree of difference between the desired signal and Q1 and Z1 to ZN.
  • FIG. 7 is a schematic diagram of a standard constellation point in Embodiment 5 of the receiving device of the present invention.
  • a simple example is made with four standard constellation points (represented by " ⁇ " in the figure) in a complex coordinate system, which are (1+j), (1-j), respectively. , (-1+j) and (-1-j); the transmitting device maps the information to the standard constellation point when transmitting the information, or it can be said to modulate the information with the standard constellation point, obtain the signal, and then send the signal through the transmitting antenna.
  • the receiving device demodulates the received signal (here demodulated by the demodulating unit F1 in the feedback control module F), and assuming that the signal is not interfered during transmission, the receiving signal received by the receiving device will
  • the signals sent by the transmitting device are completely identical, each point that coincides with the above-mentioned standard constellation points is sequentially obtained after demodulating the received signal, but there is an error between the received signal of the receiving device and the signal sent by the transmitting device due to transmission interference.
  • the point obtained by demodulation (indicated by "x" in the figure) is deviated from the standard constellation point; for example, when the feedback control module F demodulates Q1, a point (0.5 + j) is obtained, and the point ( 0.5+j) is closest to the standard constellation point (1+j), so Q 1
  • the standard constellation point (1+j) is determined to be the above-mentioned desired signal, and the point (0.5+j) and the target are
  • the distance between the quasi-constellation points (1+j) can characterize the degree of difference between Q1 and the desired signal.
  • the process signal to be processed that is, when the quality of the first combined signal deteriorates, the first combined signal is not continuously used to avoid affecting the progress of the communication activity, and when the quality of the first combined signal is not degraded, timely
  • the first combined signal is selected to make full use of the higher receiving gain brought by the first combined signal, so that the benefit of the spatial diversity system is increased, and the communication performance is improved.
  • FIG. 8 is a schematic structural diagram of Embodiment 6 of a receiving device according to the present invention. As shown in FIG. 8 , this embodiment is further described based on the schematic diagram of the structure shown in FIG. 4 .
  • the selection module R includes a cache check unit R1 and a determining unit R2.
  • the cache check unit R1 and the determining unit R2 are in communication connection, and the cache check unit R1 is communicatively connected to the merge module H; specifically, the cache check unit R1 is communicatively connected to the output end O of the merge module H;
  • the monitoring control module further includes an optimal determining unit C3, where the optimal determining unit is communicatively connected to the demodulating module A and the difference calculating unit C1;
  • the optimal determining unit C3 is configured to determine, according to a quality parameter of the N received signals acquired by the demodulation module, a quality optimal received signal in the N received signals;
  • the difference calculation unit C1 is configured to subtract the quality parameter of the quality-preferred received signal from the quality parameter of each of the N-channel received signals, and obtain a difference corresponding to each received signal;
  • the difference calculation unit C1 is further configured to update the enabled state of each received signal according to the difference corresponding to each received signal.
  • the difference calculation unit C1 when updating the enabled state of each received signal, includes:
  • the difference calculating unit C1 is specifically configured to update the enabled state of the received signal to be invalid;
  • the difference calculating unit C1 keeps the enabled state of the received signal as valid
  • the difference calculating unit C1 updates the enabled state of the received signal to be valid
  • the difference calculating unit C1 keeps the enabled state of the received signal as invalid.
  • the difference calculating unit C1 After updating the enabled state of the received signals, the difference calculating unit C1 is configured to determine whether the received signal with the enabled state is invalid in the N received signals.
  • the difference calculation unit C1 predicts that the quality of the first combined signal is inferior to the quality of the N received signal
  • the difference calculation unit C1 predicts that the quality of the first combined signal is better than the best received signal of the N received signals.
  • the difference calculating unit C1 is configured to determine the weighting coefficient.
  • the unit C2 notifies the merge indication information; the merge indication information may be an enable state of the N-channel received signals; and the weighting coefficient determining unit C2 specifically determines a weighting coefficient for the received signal whose enable state is valid, thereby merging
  • the module H performs a combining process on the received signal whose enable state is valid; since the difference calculating unit C1 determines that the quality of the first combined signal is better than the best received signal in the N received signal, it is equivalent to the N path.
  • the merge indication information may be that the enabled state of the N received signal is valid, so that the weighting coefficient determining unit C2 determines the weighting coefficient for the N received signals, and determines the determined N channel.
  • the weighting coefficient of the signal is fed back to the merging module H, so that the merging signal input by the merging module H from the output terminal O to the buffer checking unit R1 is A first combiner signal combination obtained.
  • the determining unit R2 in the selection module R preferentially selects the combined signal; but is subject to external temperature changes or external stress (such as hail On the transmitting device or the casing of the receiving device, there is a phase-hopped receiving signal in the N-channel received signal. If the phase-hopping received signal participates in the combining process, the obtained combined signal is not deteriorated, but the quality is not deteriorated.
  • the buffer checking unit R1 When the information is acquired according to the combined signal, an error occurs, which affects the reception of the information; and the received signal of the phase jump cannot be found by the monitoring control module C, so the buffer checking unit R1 is provided in the selection module R, thereby After the monitoring control module C determines that the first combined signal is a to-be-processed signal, the buffer checking unit R1 needs to further detect the first combined signal; for example, FEC (Forward Error Correction) check can be used. , determining whether the first combined signal is in an error-free state;
  • FEC Forward Error Correction
  • the cache check unit R1 in the selection module R is used to output the merge module H.
  • the first combined signal is verified;
  • the determining unit R2 is configured to determine that the first combined signal is a to-be-processed signal when the buffer checking unit R1 determines that the first combined signal is in an error-free state.
  • the determining unit R2 determines, in the N receiving signals, that the received signal determined by the buffer checking unit R1 to be in the error-free state is Pending signal.
  • the difference calculating unit C1 is configured to notify the weighting coefficient determining unit C2 that the quality of the first combining signal is worse than the quality of the received signal in the N received signal.
  • Combining the indication information; the merging indication information may be an enable state of the N way receiving signal; the weighting coefficient determining unit is configured to control the merging module according to the merging indication information, and the N receiving signal is not caused
  • the quality of the first combination signal is inferior to the total received signal of the quality-preferred received signal in the N-channel received signal, and the second combined signal is output to the selection module; specifically, the The weighting coefficient determining unit C2 knows that the enabled state is an invalid NM way receiving signal according to the combining indication information, so that the weighting coefficient determining unit C2 is specifically configured to receive the NM way receiving state in the N receiving signals as invalid.
  • the weighting coefficient of the signal is set to 0, and the weighting coefficient is determined for the M-channel received signal whose enable state is valid, and the weighting coefficient of the determined N-channel received signal is fed back to the merge module H,
  • the merging module H is combined to process the M-channel received signals whose enable state is valid, and outputs the second merging signal.
  • the buffer check unit R1 in the selection module R is configured to check the second combined signal output by the merge module H;
  • the determining unit R2 is configured to determine that the second combining signal is a to-be-processed signal when the buffer checking unit R1 determines that the second combining signal is in an error-free state.
  • the determining unit R2 determines, in the N receiving signals, that the received signal determined by the buffer checking unit R1 to be in the error-free state is to be processed. signal.
  • the process signal to be processed that is, when the quality of the first combined signal deteriorates, the first combined signal is not continuously used to avoid affecting the progress of the communication activity, and when the quality of the first combined signal is not degraded, timely
  • the first combined signal is selected to make full use of the higher receiving gain brought by the first combined signal, so that the benefit of the spatial diversity system is increased, and the communication performance is improved.
  • FIG. 9 is a schematic structural diagram of Embodiment 7 of a receiving device according to the present invention. As shown in FIG. 9, this embodiment is further described on the basis of the embodiment shown in FIG. 8. Specifically, when N receiving antennas receive signals transmitted by the same transmitting antenna, the sending is performed. The signals transmitted by the antennas are transmitted through different transmission paths, so that the time at which the N receiving antennas receive the received signals is different. Therefore, the merging module H in this embodiment further includes the time aligning unit H1, and thus the N channels received by the N receiving antennas. The receiving signal is input to the demodulation module A, and is also input to the time alignment unit H1, so that the N channels of the received signal are matched by the merging unit H2, and then output to the selection module R;
  • the value of the weighting coefficient determined for the N-channel received signal or the NM-channel received signal to be processed at the current time may not be applicable to the N-channel received signal or the NM-channel received signal received at the next moment.
  • a feedback control mechanism is adopted.
  • the combined signal output from the merging unit H2 is the first combined signal Q1
  • Q1 is input to the selection module R
  • Q1 is also transmitted to the feedback control module F
  • the feedback control module F determines the desired signal corresponding to Q1 according to Q1, and then subtracts the desired signal of Q1 and Q1, and the obtained degree of difference is fed back to the weighting coefficient determining unit C2, so that the weighting coefficient determining module C2 is based on the degree of difference between the desired signal and Q1.
  • N channels receive signals, adaptively adjust the value of W1 ⁇ WN; if the combined signal output from the merging unit H2 is the second combined signal Q2, Q2 is input to the selection module R, and Q2 is also transmitted to the feedback control module F, the feedback control module F determines the desired signal corresponding to Q2 according to Q2, and then subtracts the desired signal of Q2 and Q2, and the obtained degree of difference is fed back to the weighting coefficient determining unit C2, so that the weighting coefficient is C2 module according to the difference of the reception and the N-M path between the desired signal and the signal Q2, W1 ⁇ WN adaptive adjustment values, wherein the specific feedback control may refer to the foregoing description with respect to FIG. 7.
  • the process by monitoring the N received signals, whether the quality of the first combined signal obtained by combining the N received signals is judged is degraded, and determining whether the first combined signal is used for the subsequent signal according to the determination result.
  • the processed signal to be processed that is, when the quality of the first combined signal deteriorates, The first combined signal will not be used continuously to avoid affecting the communication activity, and when the quality of the first combined signal is not degraded, the first combined signal is selected in time to make full use of the first combined signal.
  • the high receiving gain increases the efficiency of the space diversity system and improves communication performance.
  • each module and unit in the receiving device is only a logical function division, and each module and unit may implement correspondingly when implemented.
  • Functional circuit structure optional, there may be another way of dividing in actual implementation, for example, multiple modules or units may be combined, for example, multiple modules or units may be integrated into one ASIC (Application Specific Integrated Circuit) chip, specifically Such as an FPGA (Field-Programmable Gate Array) chip, a CPLD (Complex Programmable Logic Device) chip, a DSP (Digital Signal Process) chip; and possibly, each of the above Modules or units may also be physically physically present; further divided into modules or units, or some features may be omitted or not implemented.
  • the communication connection between each module and unit may be realized by some interfaces, indirect coupling or direct coupling, and the communication connection may be electrical, mechanical or other forms.
  • FIG. 10 is a schematic structural diagram of Embodiment 8 of a receiving device according to the present invention. As shown in FIG. 10, the receiving device in this embodiment includes:
  • the monitoring control module 11 is configured to monitor the quality parameter of the N channel received signal in real time; the N channel receiving signal is obtained by receiving the signal sent by the same transmitting antenna on the transmitting device by using the N receiving antennas;
  • the prediction module 12 is configured to predict, according to the quality parameter of the N-channel signal, whether the quality of the first combined signal obtained by combining the N received signals is better than the quality-preferred received signal of the N received signals ;
  • the determining module 13 is configured to determine that the first combined signal is a to-be-processed signal if the quality of the first combined signal is predicted to be better than the best received signal in the N received signal;
  • N is an integer not less than 2
  • M is an integer greater than 0 and less than N.
  • the quality of the first combined signal obtained by combining the N received signals is judged whether or not the quality is deteriorated, and whether the first combination is determined according to the determination result.
  • the road signal is a signal to be processed for subsequent signal processing, that is, when the quality of the first combined signal is degraded, the first combined signal is not continuously used to avoid affecting the progress of the communication activity, and the first combined signal is
  • the quality is not degraded, the first combined signal is selected in time, and the higher receiving gain brought by the first combined signal is fully utilized, so that the benefit of the spatial diversity system is increased, and the communication performance is improved.
  • FIG. 11 is a schematic structural diagram of Embodiment 9 of a receiving device according to the present invention. As shown in FIG. 11, the embodiment is further described on the basis of the embodiment shown in FIG. 10, and the details are as follows:
  • the determining module 13 is configured to determine, according to the M-channel received signal in the N-channel received signal, a received signal that satisfies a preset condition in the N-channel received signal as a to-be-processed signal; or
  • the determining module 13 is configured to determine that the first combined signal is a signal to be processed, it is further configured to determine that the first combined signal is in an error-free state.
  • the determining module 13 is configured to determine that the second combined signal is a signal to be processed, it is further configured to determine that the second combined signal is in an error-free state.
  • the determining module 13 determines that the first combining signal is in an error state, or determines that the second combining signal is in an error state, it is further configured to determine that any path is in the N receiving signals.
  • the received signal without error status is the signal to be processed.
  • the determining module 13 determines, when the received signal that satisfies the preset condition is a signal to be processed, in the N received signal, specifically, determining, in the N received signal, that the received signal in a non-error state is a pending signal. signal.
  • the monitoring control module 11 is specifically configured to determine a quality-optimized received signal in the N-channel received signal according to the quality parameter of the N-channel received signal; The quality parameter of the optimal received signal is subtracted from the quality parameter of each received signal of the N received signals, and the difference corresponding to each received signal is obtained; and the received signal is received according to the difference corresponding to each received signal. Enable status to update.
  • the monitoring control module is specifically configured to: if the enabled state of the received signal is valid, and the received signal corresponds to If the difference is greater than the upper limit, the enabled state of the received signal is updated to be invalid; if the enabled state of the received signal is valid, and the difference corresponding to the received signal is not greater than the upper limit, then The enabled state of the received signal is valid; if the enabled state of the received signal is invalid, and the difference corresponding to the received signal is less than the lower limit, the enabled state of the received signal is updated to be valid; And if the enabled state of the received signal is invalid, and the difference corresponding to the received signal is not less than a lower limit, the enabled state of the received signal is invalid.
  • the prediction module 12 predicts whether the quality of the first combined signal obtained after combining the N received signals is better than the quality optimal receiving of the N received signals according to the quality parameter of the N signal. When the signal is used, it is specifically used to determine whether there is a received signal whose enable state is invalid in the N received signals,
  • the determining module 13 combines all the received signals of the N-channel received signals that do not cause the quality of the first combined signal to be inferior to the quality of the N-channel received signals to obtain the first
  • the binary signal it is specifically used to screen out the NM received signal in the N-channel received signal, and the M-channel received signal in the enabled state is combined to obtain the second combined signal.
  • the receiving device further includes a storage module 14 configured to determine, when the first combining signal or the second combining signal is obtained, the module 13 retains the N receiving signals.
  • the process signal to be processed that is, when the quality of the first combined signal deteriorates, the first combined signal is not continuously used to avoid affecting the progress of the communication activity, and when the quality of the first combined signal is not degraded, timely
  • the first combined signal is selected to make full use of the higher receiving gain brought by the first combined signal, so that the benefit of the spatial diversity system is increased, and the communication performance is improved.
  • each module is only a logical function division, and the actual implementation may have another division manner, for example, multiple modules may be combined or further Divided into multiple modules or units, or some features can be ignored Slightly, or not executed.
  • there is a communication connection between the modules, and the communication connection can be realized through some interfaces, indirect coupling or direct coupling, and the communication connection can be electrical, mechanical or other forms.
  • each module in each network element device embodiment may be integrated into one functional module, or may exist in a separate physical state; and each module may be implemented in the form of hardware and/or software.
  • FIG. 12 is a schematic structural diagram of Embodiment 10 of a receiving device according to the present invention.
  • the receiving device includes a processor 21, which may be an ASIC chip, such as an FPGA chip, a CPLD chip, a DSP chip, or the like;
  • the processor 21 is configured to monitor a quality parameter of the N-channel received signal in real time; the N-channel received signal is obtained by receiving, by using N receiving antennas, a signal sent by the same transmitting antenna on the transmitting device;
  • the first combined signal is a to-be-processed signal if it is predicted that the quality of the first combined signal is better than the best-quality received signal of the N received signals;
  • N is an integer not less than 2
  • M is an integer greater than 0 and less than N.
  • the processor 21 when determining, by the processor 21, the signal to be processed according to the M-channel received signal in the N-channel received signal, the processor 21 is specifically configured to determine, in the N-channel received signal, a received signal that satisfies a preset condition as a signal to be processed. Or combining all received signals of the N received signals that do not cause the quality of the first combined signal to be inferior to the quality of the N received signals to obtain a second combined signal; The second combined signal is a signal to be processed.
  • the processor 21 is further configured to determine that the first combined signal is in an error-free state before determining that the first combined signal is a to-be-processed signal.
  • the processor 21 is further configured to determine that the second combined signal is in an error-free state.
  • the processor 21 determines that the first combined signal is in an error state, or determines that the second combined signal is in an error state, it is further used to determine any path in the N received signals.
  • the received signal in the error-free state is the signal to be processed.
  • the processor 21 when determining, by the processor 21, that the received signal that satisfies the preset condition is the signal to be processed, the processor 21 is specifically configured to determine, in the N received signals, that the received signal in the error-free state is a pending signal. signal.
  • the processor 21 is configured to monitor the quality parameter of the N-channel received signal in real time, specifically for determining the quality-optimized received signal in the N-channel received signal according to the quality parameter of the N-channel received signal; The quality parameter of the optimal received signal is subtracted from the quality parameter of each received signal of the N received signals, and the difference corresponding to each received signal is obtained; and the received signal is received according to the difference corresponding to each received signal. Enable status to update.
  • the processor 21 when the quality parameter is a signal-to-noise ratio, when the processor 21 is configured to update the enabled state, specifically, if the enabled state of the received signal is valid, and the If the difference corresponding to the received signal is greater than the upper limit, the enabled state of the received signal is updated to be invalid;
  • the enabled state of the received signal is valid, and the difference corresponding to the received signal is not greater than the upper limit, the enabled state of the received signal is enabled;
  • the enabled state of the received signal is invalid, and the difference corresponding to the received signal is less than a lower limit, the enabled state of the received signal is updated to be valid;
  • the enabled state of the received signal is invalid, and the difference corresponding to the received signal is not less than a lower limit, the enabled state of the received signal is invalid.
  • the processor 21 is configured to predict whether the quality of the first combined signal obtained by combining the N received signals according to the quality parameter of the N signal is better than the quality of the N received signals.
  • the processor 21 is configured to predict whether the quality of the first combined signal obtained by combining the N received signals according to the quality parameter of the N signal is better than the quality of the N received signals.
  • the processor 21 performs a combining process for combining all received signals of the N received signals that do not cause the quality of the first combined signal to be inferior to the quality of the N received signals.
  • the binary signal is specifically used to screen out the NM received signal in the N-channel received signal, and the M-channel received signal in the enabled state is merged. Obtain a second combined signal.
  • the processor 21 is further configured to: when the first combined signal or the second combined signal is obtained, retain the N received signals.
  • the process signal to be processed that is, when the quality of the first combined signal deteriorates, the first combined signal is not continuously used to avoid affecting the progress of the communication activity, and when the quality of the first combined signal is not degraded, timely
  • the first combined signal is selected to make full use of the higher receiving gain brought by the first combined signal, so that the benefit of the spatial diversity system is increased, and the communication performance is improved.
  • FIG. 13 is a schematic flowchart diagram of Embodiment 1 of a method for processing a received signal according to the present invention.
  • the execution body of this embodiment is the receiving device shown in any of the foregoing FIG. 2 to FIG. 12, and the receiving device implements the following steps:
  • the N received signals are obtained by receiving signals transmitted by the same transmitting antenna on the transmitting device by using N receiving antennas. Specifically, the receiving device receives the signal sent by the sending device by using N antennas, and monitors the quality parameter of the N receiving signal in real time when the N receiving signal is obtained.
  • N is an integer of not less than 2; it can be understood that, when communication between the transmitting device and the receiving device is performed, in order to improve communication reliability, the receiving device uses N receiving antennas to transmit signals to the same transmitting antenna on the transmitting device. Receiving, obtaining N receiving signals; that is, the N receiving signals are generated by a signal transmitted by a transmitting antenna on the transmitting device via N different paths; then the N receiving signals are combined to improve the receiving gain. .
  • the same signal is transmitted through different paths, and the performance of the generated N-channel received signals may be different, resulting in degradation of the performance of the combined signal obtained after the combination, which affects the subsequent processing of the receiving device, so
  • the continuous reception of the signals transmitted by the N antennas by the transmitting device also needs to monitor the quality parameters of the N received signals in real time, and it is known whether the performance of the combined signals obtained after the combining process is degraded.
  • S102 predict, according to the quality parameter of the N-channel signal, whether the quality of the first combined signal obtained by combining the N-channel received signals is better than the quality-optimized received signal of the N-channel received signals.
  • the first combined circuit If the gain of the signal is higher than any of the received signals of the N channels, the subsequent processing is continued with the first combined signal.
  • the signal to be processed is determined according to the M received signal in the N received signal.
  • M is an integer greater than 0 and less than N
  • the signal processing according to the first combined signal is not continued, but the signal to be processed is re-determined, for example, the received signal is determined to be a pending signal from the N received signals, or the N received signals are received. Part of the received signals are combined to obtain a combined signal whose quality is not deteriorated and which has a higher receiving gain.
  • the signal transmission and reception are continued, so the S101 monitoring operation is also performed in real time, so the first obtained after the N-channel reception signal is combined and processed according to the quality parameter of the N-channel signal is predicted.
  • the signal processing may be continued according to the first combined signal; when the first combined signal obtained by combining the N received signals is determined according to the quality parameter of the N signal If the quality of the signal is degraded, the signal processing is no longer continued according to the first combined signal, thereby avoiding adversely affecting the receiving process of the signal; and in the prior art, regardless of whether the combined signal is degraded, all of the N receiving signals are selected.
  • the present embodiment flexibly combines the quality parameters of the current N received signals to determine whether the first combined signal is degraded at the current time. Therefore, when the first combined signal is not degraded, the first combination is selected.
  • the signal of the road is the signal to be processed, and the higher receiving gain brought by the better quality combined signal is not wasted, so that the receiving device and the receiving device are empty.
  • the inter-diversity system can work in a high-profile mode, realizes an increase in communication distance, improves communication capacity, and improves the efficiency of the space diversity system; and, when the first combined signal is degraded, the first combined signal is flexibly filtered out.
  • the process signal to be processed that is, when the quality of the first combined signal deteriorates, the first combined signal is not continuously used to avoid affecting the progress of the communication activity, and when the quality of the first combined signal is not degraded, timely
  • the first combined signal is selected to make full use of the higher receiving gain brought by the first combined signal, so that the benefit of the spatial diversity system is increased, and the communication performance is improved.
  • FIG. 14 is a schematic flowchart diagram of Embodiment 2 of a method for processing a received signal according to the present invention. As shown in FIG. 14, this embodiment is further described on the basis of the embodiment shown in FIG.
  • S201 Real-time monitoring quality parameters of N received signals.
  • the receiving device While continuously receiving the N received signals, the receiving device also continuously monitors the received received signals, and during the monitoring, at least the following S202 to S204 are performed.
  • S202 Determine, according to the quality parameter of the N received signal, the best received signal in the N received signal.
  • the quality of the signal can be measured by using a signal-to-noise ratio, a mean square error of the signal in the constellation diagram, etc., and the above-mentioned signal-to-noise ratio, mean square error, etc. can be used as the above quality parameter; taking the signal-to-noise ratio as an example, N way The received signal with the highest signal-to-noise ratio in the received signal is the best-quality received signal among the N received signals.
  • the quality of the received signal is judged by the quality as the standard, and the quality of the received signal is determined by the difference between the quality parameter of the quality of the received signal and the quality parameter of each of the N received signals. Whether the quality of the signal is degraded.
  • the received signal may be considered to be seriously degraded compared with the best-preferred received signal. If the incoming signals are combined, the other received signals with better quality will be affected, so the received gain of the combined combined signals is not effectively increased, but the quality of the combined signals is degraded, so that the received signals with severe quality degradation can be obtained.
  • the enable state is set to be invalid; if the difference corresponding to a received signal does not exceed the threshold, it can be considered that the received signal is not deteriorated or the degradation is not serious compared with the quality-preferred received signal, and the received signal is performed. By combining, the gain of the obtained combined signal can be improved, so that the enabled state of the received signal that is not deteriorated or deteriorated is set to be effective.
  • the dual threshold is used in this embodiment, that is, the upper limit value and the lower limit value are set.
  • the quality parameter is used as the signal to noise ratio.
  • the enabled state of the received signal is valid, and the difference corresponding to the received signal is greater than the upper limit, the enabled state of the received signal is updated to be invalid;
  • the enabled state of the received signal is valid, and the difference corresponding to the received signal is not greater than the upper limit, the enabled state of the received signal is enabled;
  • the enabled state of the received signal is invalid, and the difference corresponding to the received signal is less than a lower limit, the enabled state of the received signal is updated to be valid;
  • the enabled state of the received signal is invalid, and the difference corresponding to the received signal is not less than a lower limit, the enabled state of the received signal is invalid.
  • the enabled state of the received signal does not change repeatedly between valid and invalid, which facilitates the subsequent processing to be stable.
  • the quality of the first combined signal is predicted to be inferior to the quality of the received signal in the N received signal, and the signal to be processed is determined according to the M received signal in the N received signal.
  • the quality of the first combined signal is predicted to be better than the best received signal of the N received signals, and the first combined signal is determined to be a to-be-processed signal.
  • determining, in the N received signals, a received signal that satisfies the preset condition as a to-be-processed signal the preset condition may be that the signal-to-noise ratio of the N received signals is the highest, or is in an error-free state; or the N received signals are received. All received signals that do not cause deterioration of the quality of the first combined signal The line combining process obtains a second combined signal; then the second combined signal is determined to be a signal to be processed.
  • the process signal to be processed that is, when the quality of the first combined signal deteriorates, the first combined signal is not continuously used to avoid affecting the progress of the communication activity, and when the quality of the first combined signal is not degraded, timely
  • the first combined signal is selected to make full use of the higher receiving gain brought by the first combined signal, so that the benefit of the spatial diversity system is increased, and the communication performance is improved.
  • FIG. 15 is a schematic flowchart diagram of Embodiment 3 of a method for processing a received signal according to the present invention. As shown in FIG. 15, the embodiment is further described on the basis of the embodiment shown in FIG. 13 or FIG. 14, and the embodiment can be combined with the receiving shown in FIG. 2, FIG. 3, FIG. 5 and FIG. Equipment, including:
  • optional S205-S207 may be used to determine whether there is a received signal whose enable state is invalid in the N-channel received signal. If yes, determine the quality of the first combined signal is degraded; if not, Then it is determined that the quality of the first combined signal is not degraded.
  • the optimal determining unit C3 determines the maximum value in the signal-to-noise ratio of the N received signals output by the demodulating module A.
  • the optimal determining unit C3 inputs the acquired maximum value to the difference calculating unit C1, and the signal-to-noise ratio of each received signal is also input to the value difference calculating unit C1, which is based on the maximum value and the respective signals.
  • the difference between the signal-to-noise ratios is used to update the enable state of each received signal; after the update is completed, it is predicted whether the quality of the first combined signal is better than the N received signals according to the enabled state of each signal.
  • the difference calculating unit C1 is further configured to notify the cache checking unit R1 of the merge module H
  • the first combined signal outputted after the N-channel received signal is combined is a signal to be processed; then the buffer check unit R1 performs S303;
  • the difference calculation unit C1 is further configured to notify the buffer verification unit R1 that the merged unit H performs a merge process on the N-channel received signals, and the first combined signal that is output is not a signal to be processed. Then, the cache check unit R1 executes S306.
  • the foregoing optimal determining unit C3 may also be omitted, and the difference calculating unit C1 may directly compare the quality parameters of the two received signals. If the difference between the quality parameters of the two received signals exceeds a preset value, it can be determined that the quality of the first combined signal obtained after combining the two received signals is inferior to the received one of the two received signals. At the same time, the difference calculation unit C1 determines whether to input a control signal for notifying the quality of the first combined signal to the quality of a certain received signal of the two received signals to the buffer check unit R1.
  • the quality of the first combined signal is not inferior to the quality of one of the two received signals; the invalid signal is used to indicate that the quality of the first combined signal is inferior to that of the two received signals.
  • the quality of the signal when determining the effective signal or invalid signal, you can also set the dual preset value, that is, the upper limit preset value and the lower limit preset value, as follows:
  • the control signal is updated to an invalid signal
  • the control signal is kept as a valid signal
  • the control signal is updated to a valid signal
  • the received signal is kept as an invalid signal.
  • the received signal for performing subsequent processing is required to be high, and it is required to be in a state of no error at present.
  • the merging module H continuously outputs the first merging signal
  • the buffer checking unit R1 continuously buffers the first merging signal and verifies it, and outputs the verification result to the determining unit R2, the first is determined.
  • the determining unit reads the first combined signal from the buffer checking unit R1 as the signal to be processed;
  • the buffer checking unit R1 continuously buffers the N receiving signals, and respectively checks the N receiving signals, and outputs the verification result to the same.
  • the unit R2 is determined, so the determining unit R2 reads a received signal in the error-free state from the buffer check unit R1 as a signal to be processed, and then outputs it to the subsequent processing module.
  • one of the signals may be selected as the signal to be processed; or the received signal having the highest priority is determined among the plurality of received signals in the error-free state. This priority can be determined based on the signal to noise ratio of the received signal.
  • the receiving module R retains the N receiving signals while obtaining the first combined signal, and once the quality of the first combined signal is determined to be deteriorated or is in the error state at the current time, the receiving signal can be immediately received in the N receiving signals. Reading a received signal in an error-free state as a signal to be processed, seamless switching between the first combined signal and the N received signal can be realized; then at the next moment, the quality of the first combined signal is not deteriorated or is If there is no error status, the first combined signal is read immediately to avoid sacrificing the higher receiving gain caused by the combined signal.
  • the first combined signal obtained by combining the N received signals is judged whether or not the deterioration is performed, and the first combined signal is controlled to participate in the selection or not to participate in the selection, that is, at the first
  • the degraded first combined signal does not affect the progress of the communication activity, and when the first combined signal is not deteriorated, the higher receiving gain due to the first combined signal is not ignored.
  • FIG. 16 is a schematic flowchart diagram of Embodiment 4 of a method for processing a received signal according to the present invention. As shown in FIG. 16, this embodiment is further described based on the embodiment shown in FIG. 13 or FIG. 14, and the embodiment can be combined with the receiving shown in FIG. 2, FIG. 4, FIG. 8, and FIG. Equipment; specifically:
  • S402. Determine whether the quality of the first combined signal obtained by combining the N received signals is inferior to the received signal with the best quality among the N received signals. If not, execute S403, and if yes, execute S406.
  • S402 When S402 is executed, refer to S205 and S206 for details. There is a received signal whose enable state is invalid, and if so, it is determined that the performance of the first combined signal is degraded; if not, it is determined that the performance of the first combined signal is not degraded.
  • the combination is performed.
  • the module H continuously outputs the first combined signal
  • the buffer checking unit R1 continuously buffers the first combined signal and verifies it, and outputs the verification result to the determining unit R2, so the first combination is determined.
  • the determining unit reads the first combined signal from the buffer checking unit R1 as the signal to be processed.
  • the buffer checking unit R1 continuously buffers the N receiving signals, and respectively checks the N receiving signals, and outputs the verification result to the same.
  • the unit R2 is determined, so the determining unit R2 reads a received signal in the error-free state from the buffer check unit R1 as a signal to be processed, and then outputs it to the subsequent processing module.
  • one of the signals may be selected as the signal to be processed; or the received signal having the highest priority is determined among the plurality of received signals in the error-free state. This priority can be determined based on the signal to noise ratio of the received signal.
  • S406 Screening the N-M channel receiving signal with the enabled state in the N-channel receiving signal as invalid, and combining the M-channel receiving signals whose enabling state is valid to obtain the second combining signal.
  • the merge module H outputs the second combined signal.
  • the merging module H continuously outputs the second merging signal, and the buffer checking unit R1 continuously buffers the second merging signal and verifies it, and outputs the verification result to the determining unit R2, so the first combination is determined.
  • the determining unit reads the first combined signal from the buffer checking unit R1 as the signal to be processed, that is, executes S408.
  • the selection module R retains the N combined signals while buffering the first combined signal or the second combined signal, and then determines that the quality of the first combined signal is degraded or is in a bit error state at the current time, or The binary signal is in the error state, and the received signal in the error-free state can be read as the signal to be processed immediately in the N received signal, and the first combined signal or the second combined signal and the N received signal can be realized. Seamless switching between; then at the next moment, it is found that the quality of the first combined signal is not degraded or in an error-free state, or the second combined signal is in an error-free state, and the first combined signal or the second is immediately read. Combine signals to avoid sacrificing the higher receive gain from the combined signal.
  • the first combined signal obtained by combining the N received signals is judged whether or not the deterioration is performed, and the first combined signal is controlled to participate in the selection or not to participate in the selection, that is, at the first
  • the degraded first combined signal does not affect the progress of the communication activity, and when the first combined signal is not deteriorated, the higher receiving gain due to the first combined signal is not ignored.
  • the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed.
  • the foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

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Abstract

本发明实施例提供一种接收设备和接收信号的处理方法，通过监测N路接收信号，判断对合并N路接收信号获得的第一合路信号的质量是否劣化，并根据判断结果确定第一合路信号是否可用，避免在第一合路信号的质量劣化时使用第一合路信号，且在第一合路信号的质量未劣化时，及时利用第一合路信号，提升了通信性能。

Description

接收设备和接收信号的处理方法 技术领域
本发明实施例涉及通信技术领域，尤其涉及一种接收设备和接收信号的处理方法。
背景技术
图1为现有技术中空间分集系统的示意图。如图1所示，发送设备只有一个发送天线处于开启状态，另外一个发送天线静默，而接收设备的多个接收天线(图中以2个接收天线示例)在安装时，只要空间上满足预设距离，则每一个接收天线均能收到工作的发送天线所发送的信号，即对于接收设备来说，可以同时接收到多路接收信号；具体的，图1中发送天线发送的信号经传输路径1和传输路径2，分别由接收设备的2个接收天线接收，即获得的2路接收信号相同，但由于传输路径1和传输路径2之间没有相关性，故接收设备可以按照一定规则将两路接收信号进行合并，从而可以针对发送天线发送的信号，提高接收增益。
但采用上述现有技术进行信号的接收时发现，上述经传输路径1和传输路径2传输的信号，在传输过程中受通信环境的干扰，可能导致一路信号的质量劣化，则接收的两路接收信号之间的信噪比相差比较大，若此时仍将两路接收信号进行合并，则合并后的信号不但没有提高接收增益，反而质量会下降，影响后续的信号处理。
发明内容
本发明实施例提供一种接收设备和接收信号的处理方法，用于提升空间分集系统的通信性能。
第一方面，本发明实施例提供一种接收设备，至少包括：N个接收天线，合并模块、解调模块、监测控制模块；所述N个接收天线与所述合并模块、所述解调模块和所述监测模块通信连接；所述合并模块与所述监测控制模块通信连接；
所述解调模块用于对N路接收信号进行解调获取N路接收信号的质量参数，并将N路接收信号的质量参数发送给所述监测控制模块；所述N路接收信号是通过采用所述N个接收天线针对发送设备上同一个发送天线发送的信号进行接收获得的；
所述监测控制模块用于实时监测N路接收信号的质量参数；
所述监测控制模块用于根据所述N路信号的质量参数，预测所述合并模块对N路接收信号进行合并处理后输出的第一合路信号的质量是否优于所述N路接收信号中质量最优的接收信号；
若所述监测控制模块预测所述第一合路信号的质量优于所述N路接收信号中质量最优的接收信号，则确定所述合并模块对所述N路接收信号进行合并处理后输出的所述第一合路信号为待处理信号；
若所述监测控制模块预测所述第一合路信号的质量劣于所述N路接收信号中质量最优的接收信号，则根据所述N路接收信号中的M路接收信号确定待处理信号；
其中，N为不小于2的整数，M为大于0且小于N的整数。
结合第一方面，在第一实施方式中，还包括选收模块，所述选收模块与所述合并模块通信连接，还与N个接收天线通信连接；
所述监测控制模块包括差值计算单元和加权系数确定单元；所述加权系数确定单元与所述合并模块通信连接；
当所述选收模块与所述差值计算单元通信连接，则所述监测控制模块用于根据所述N路接收信号中的M路接收信号确定待处理信号，包括：
所述差值计算单元用于通知所述选收模块所述合并模块对所述N路接收信号进行合并处理后输出的所述第一合路信号不为待处理信号，触发所述选收模块用于在N路接收信号中确定一路满足预设条件的接收信号为待处理信号；或者
当所述差值计算单元和所述加权系数确定单元通信连接，且所述选收模块与所述差值计算单元无通信连接时，则所述监测控制模块用于根据所述N路接收信号中的M路接收信号确定待处理信号，包括：
所述差值计算单元用于向所述加权系数确定单元通知合并指示信息；
所述加权系数确定单元用于根据所述合并指示信息控制所述合并模块， 将N路接收信号中未引起所述第一合路信号的质量劣于所述N路接收信号中质量最优的接收信号的全部接收信号进行合并处理，向所述选收模块输出第二合路信号。
结合第一方面第一实施方式，在第二实施方式中，所述选收模块包括缓存校验单元和确定单元，所述缓存校验单元和确定单元通信连接，所述缓存校验单元与所述合并模块通信连接；
所述缓存校验单元用于在所述监测控制模块确定所述合并模块对所述N路接收信号进行合并处理后输出的所述第一合路信号为待处理信号之后，对所述合并模块输出的所述第一合路信号进行校验；
所述确定单元用于当所述缓存校验单元确定所述第一合路信号处于无误码状态时，确定所述第一合路信号为待处理信号。
结合第一方面第二实施方式，在第三实施方式中，当所述确定单元与所述差值计算单元连接时，所述差值计算单元还用于在所述确定单元用于当所述缓存校验单元确定所述第一合路信号处于无误码状态时，确定所述第一合路信号为待处理信号之前，通知所述确定单元所述合并模块对所述N路接收信号进行合并处理后输出的所述第一合路信号为待处理信号。
结合第一方面第一实施方式，在第四实施方式中，所述选收模块包括缓存校验单元和确定单元，所述缓存校验单元和确定单元通信连接，所述缓存校验单元与所述合并模块通信连接；
所述缓存校验单元用于接收所述合并模块输出的所述第二合路信号，并对所述第二合路信号进行校验；
所述确定单元用于当所述缓存校验单元确定所述第二合路信号处于无误码状态时，确定所述第二合路信号为待处理信号。
结合第一方面第三或第四实施方式，在第五实施方式中，若所述缓存校验单元确定所述第一合路信号处于误码状态，或者确定所述第二合路信号处于误码状态，则所述确定单元还用于在N路接收信号中确定任一路被所述缓存校验单元确定处于无误码状态的接收信号为待处理信号。
结合第一方面第一实施方式，在第六实施方式中，所述选收模块包括缓存校验单元和确定单元，所述缓存校验单元和确定单元通信连接，所述缓存校验单元与所述合并模块通信连接；所述确定单元与所述差值计算单元通信 连接；
所述选收模块用于在N路接收信号中确定一路满足预设条件的接收信号为待处理信号，包括：
所述缓存校验单元用于对所述N个接收天线发送的接收信号进行校验；
所述确定单元用于在N路接收信号中确定一路被所述缓存校验单元确定处于无误码状态的接收信号为待处理信号。
结合第一方面第六实施方式，在第七实施方式中，所述差值计算单元还用于，在所述确定单元在N路接收信号中确定一路被所述缓存校验单元确定处于无误码状态的接收信号为待处理信号之前，通知所述确定单元所述合并模块对所述N路接收信号进行合并处理后输出的所述第一合路信号不为待处理信号。
结合第一方面第一至第七任意一种实施方式，在第八实施方式中，所述监测控制模块还包括最优确定单元，所述最优确定单元与所述解调模块和所述差值计算单元通信连接；
则所述监测控制模块用于在实时监测N路接收信号的质量参数，包括：
所述最优确定单元用于根据所述解调模块获取的N路接收信号的质量参数，在所述N路接收信号中确定质量最优的接收信号；
所述差值计算单元用于将所述质量最优的接收信号的质量参数与N路接收信号中每一路接收信号的质量参数相减，获得各路接收信号对应的差值；
所述差值计算单元还用于根据各路接收信号对应的差值，对各路接收信号的使能状态进行更新。
结合第一方面第八实施方式，在第九实施方式中，当所述质量参数为信噪比，则所述差值计算单元用于根据各路接收信号对应的差值，对各路接收信号的使能状态进行更新，包括：
若所述接收信号的使能状态为有效，且该接收信号对应的差值大于上限值，则所述差值计算单元具体用于将所述接收信号的使能状态更新为无效；
若所述接收信号的使能状态为有效，且该接收信号对应的差值不大于上限值，则所述差值计算单元保持所述接收信号的使能状态为有效；
若所述接收信号的使能状态为无效，且该接收信号对应的差值小于下限值，则所述差值计算单元将所述接收信号的使能状态更新为有效；
若所述接收信号的使能状态为无效，且该接收信号对应的差值不小于下限值，则所述差值计算单元保持所述接收信号的使能状态为无效。
结合第一方面第九实施方式，在第十实施方式中，所述监测控制模块用于预测对N路接收信号进行合并处理后输出的第一合路信号的质量是否优于所述N路接收信号中质量最优的接收信号，包括：
所述差值计算单元用于判断所述N路接收信号中是否存在使能状态为无效的接收信号，
若是，则所述差值计算单元确定所述第一合路信号的质量优于所述N路接收信号中质量最优的接收信号；
若否，则所述差值计算单元确定所述第一合路信号的质量劣于所述N路接收信号中质量最优的接收信号。
结合第一方面第一至第十任意一种实施方式，在第十一实施方式中，所述合并指示信息为所述N路接收信号的使能状态；
所述加权系数确定单元用于根据所述合并指示信息控制所述合并模块，将N路接收信号中未引起所述第一合路信号的质量劣于所述N路接收信号中质量最优的接收信号的全部接收信号进行合并处理，向所述选收模块输出第二合路信号，包括：
所述加权系数确定单元具体用于将所述N路接收信号中使能状态为无效的N-M路接收信号的加权系数置为0，并为使能状态为有效的M路接收信号确定加权系数，以使所述合并模块对使能状态为有效的M路接收信号进行合并处理，输出第二合路信号。
结合第一方面第一至第十一任意一种实施方式，在第十二实施方式中，所述缓存校验单元还用于在缓存所述第一合路信号或所述第二合路信号时，缓存所述N路接收信号。
第二方面，本发明实施例提供一种接收信号的处理方法，包括：
实时监测N路接收信号的质量参数；所述N路接收信号是通过采用N个接收天线针对发送设备上同一个发送天线发送的信号进行接收获得的；
根据所述N路信号的质量参数预测对N路接收信号进行合并处理后获得的第一合路信号的质量是否优于所述N路接收信号中质量最优的接收信号；
若预测所述第一合路信号的质量优于所述N路接收信号中质量最优的接 收信号，则确定所述第一合路信号为待处理信号；
若预测所述第一合路信号的质量劣于所述N路接收信号中质量最优的接收信号，则根据所述N路接收信号中的M路接收信号确定待处理信号；
其中，N为不小于2的整数，M为大于0且小于N的整数。
结合第二方面，在第一实施方式中，根据所述N路接收信号中的M路接收信号确定待处理信号，包括：
在N路接收信号中确定一路满足预设条件的接收信号为待处理信号；或者
将N路接收信号中未引起所述第一合路信号的质量劣于所述N路接收信号中质量最优的信号的全部接收信号进行合并处理，获得第二合路信号；
确定所述第二合路信号为待处理信号。
结合第二方面第一实施方式，在第二实施方式中，所述确定所述第一合路信号为待处理信号之前，还包括：
确定所述第一合路信号处于无误码状态。
结合第二方面第一实施方式，在第三实施方式中，所述在确定所述第二合路信号为待处理信号之前，还包括：
确定所述第二合路信号处于无误码状态。
结合第二方面第二或第三实施方式，在第四实施方式中，若确定所述第一合路信号处于误码状态，或者确定所述第二合路信号处于误码状态，则还包括：
在N路接收信号中确定任一路处于无误码状态的接收信号为待处理信号。
结合第二方面第一实施方式，在五实施方式中，在N路接收信号中确定一路满足预设条件的接收信号为待处理信号，包括：
在N路接收信号中确定一路处于无误码状态的接收信号为待处理信号。
结合第二方面第一至第五实施方式中的任一种实施方式，在第六实施方式中，实时监控N路接收信号的质量参数，包括：
根据N路接收信号的质量参数，在N路接收信号中确定质量最优的接收信号；
将所述质量最优的接收信号的质量参数与N路接收信号中每一路接收信 号的质量参数相减，获得各路接收信号对应的差值；
根据各路接收信号对应的差值，对各路接收信号的使能状态进行更新。
结合第二方面第六实施方式，在第七实施方式中，当所述质量参数为信噪比，则所述使能状态进行更新包括：
若所述接收信号的使能状态为有效，且该接收信号对应的差值大于上限值，则将所述接收信号的使能状态更新为无效；
若所述接收信号的使能状态为有效，且该接收信号对应的差值不大于上限值，则保持所述接收信号的使能状态为有效；
若所述接收信号的使能状态为无效，且该接收信号对应的差值小于下限值，则将所述接收信号的使能状态更新为有效；
若所述接收信号的使能状态为无效，且该接收信号对应的差值不小于下限值，则保持所述接收信号的使能状态为无效。
结合第二方面第七实施方式，在第八实施方式中，根据所述N路信号的质量参数预测对N路接收信号进行合并处理后获得的第一合路信号的质量是否优于所述N路接收信号中质量最优的接收信号，包括：
判断所述N路接收信号中是否存在使能状态为无效的接收信号，
若是，则预测所述第一合路信号的质量劣于所述N路接收信号中质量最优的接收信号；
若否，则预测所述第一合路信号的质量优于所述N路接收信号中质量最优的接收信号。
结合第二方面第八实施方式，在第九实施方式中，将N路接收信号中未引起所述第一合路信号的质量劣于所述N路接收信号中质量最优的信号的全部接收信号进行合并处理，获得第二合路信号，包括：
筛除N路接收信号中使能状态为无效的N-M路接收信号，并将使能状态为有效的M路接收信号进行合并处理，获得第二合路信号。
结合第二方面第一至第九任意一种实施方式，在第十实施方式中，还包括：
在获得所述第一合路信号或所述第二合路信号时，保留所述N路接收信号。
本发明实施例提供一种接收设备和接收信号的处理方法，通过监测N路 接收信号，对通过合并N路接收信号获得的第一合路信号的质量进行了是否劣化的判断，并根据判断结果确定是否以第一合路信号为用于后续信号处理的待处理信号，即在第一合路信号的质量劣化时，不会继续使用第一合路信号，以避免影响通信活动的进行，且在第一合路信号的质量未劣化时，及时选取第一合路信号，充分利用第一合路信号带来的较高的接收增益，使空间分集系统的效益增大，提升了通信性能。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为现有技术中空间分集系统的示意图；
图2为本发明接收设备实施例一的结构示意图；
图3为本发明接收设备实施例二的第一结构示意图；
图4为本发明接收设备实施例二的第二结构示意图；
图5为本发明接收设备实施例三的结构示意图；
图6为本发明接收设备实施例五的结构示意图；
图7为本发明接收设备实施例五中标准星座点的示意图；
图8为本发明接收设备实施例六的结构示意图；
图9为本发明接收设备实施例七的结构示意图；
图10为本发明接收设备实施例八的结构示意图；
图11为本发明接收设备实施例九的结构示意图；
图12为本发明接收设备实施例十的结构示意图；
图13为本发明接收信号的处理方法实施例一的流程示意图；
图14为本发明接收信号的处理方法实施例二的流程示意图；
图15为本发明接收信号的处理方法实施例三的流程示意图；
图16为本发明接收信号的处理方法实施例四的流程示意图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
图2为本发明接收设备实施例一的结构示意图。如图2所示，该接收设备适用于图1所示的空间分集系统中，具体的，接收设备至少包括：N个接收天线(T1～TN)，合并模块H、解调模块A、监测控制模块C；所述N个接收天线T1～TN与所述合并模块H、所述解调模块A和所述监测控制模块C通信连接；所述合并模块H与所述监测控制模块C通信连接；
所述监测控制模块C用于实时监测N路接收信号的质量参数；
所述解调模块A用于对N路接收信号进行解调获取N路接收信号的质量参数，并将N路接收信号的质量参数发送给所述监测控制模块C；所述N路接收信号是通过采用所述N个接收天线T1～TN针对发送设备上同一个发送天线发送的信号进行接收获得的。
所述监测控制模块C用于根据所述N路信号的质量参数，预测所述合并模块H对N路接收信号进行合并处理后输出的第一合路信号的质量是否优于所述N路接收信号中质量最优的接收信号；
上述N为不小于2的整数，可以理解的，发送设备与接收设备之间进行通信时，为了提高通信的可靠性，接收设备采用N个接收天线对发送设备同一个发送天线发送的同一信号进行接收，获得了N路接收信号；即N路接收信号是上述发送设备的一个发送天线发送的信号经N路不同的路径传输产生的；随后接收设备对N路接收信号进行合并处理，提升接收增益。
但由于通信环境多变，同一信号经不同路径传输，产生的N路接收信号之间性能会有所差异，导致合并后获得的合路信号的性能劣化，影响信号的后续的处理，故随着N个接收天线对发送设备发送的信号的持续接收，接收设备内的监测控制模块也需实时监测N路接收信号的质量参数，获知合并处理后获得的合路信号的性能是否劣化，而上述质量参数是解调模块对信号解调获得的。
若所述监测控制模块C预测所述第一合路信号的质量优于所述N路接收信号中质量最优的接收信号，则确定所述合并模块H对所述N路接收信号进行合并处理后输出的所述第一合路信号为待处理信号；
监测控制模块C根据所述N路信号的质量参数预测合路模块H对N路接收信号进行合并处理后获得的第一合路信号的质量不会劣化，则第一合路信号的接收增益高于N路接收信号中任一路接收信号的接收增益，以第一合路信号进行后续的信号处理，可有效提升发送设备与接收设备的通信性能，故将第一合路信号确定为待处理信号，继续进行后续的信号处理。
若所述监测控制模块C预测所述第一合路信号的质量劣于所述N路接收信号中质量最优的接收信号，则根据所述N路接收信号中的M路接收信号确定待处理信号；其中，M为大于0且小于N的整数
具体的，监测控制模块C根据所述N路信号的质量参数确定对N路接收信号进行合并处理后获得的第一合路信号的质量劣化，则第一合路信号的增益未得到有效提升，且以第一合路信号继续进行后续的处理，如解码等，则会出现误码等不利于后续处理的情况，故本实施例中不会继续根据第一合路信号进行信号处理，而是重新确定待处理信号，例如从N路接收信号中确定一路接收信号为待处理信号，或者将N路接收信号中的部分接收信号进行合并，以获得质量未劣化且具有较高接收增益的合路信号。
需要说明的是，信号的发送与接收是持续进行的，故N个接收天线持续接收信号的同时，解调模块A与监测控制模块C也是实时工作的，故每当根据所述N路接收信号的质量参数预测对N路接收信号进行合并处理后获得的第一合路信号的质量不会劣化时，可根据该第一合路信号继续进行后续的信号处理；当根据所述N路接收信号的质量参数预测对N路接收信号进行合并处理后获得的第一合路信号的质量劣化，则不再根据该第一合路信号继续进行信号处理，避免对信号的后续处理流程产生不利影响；与现有技术中无论合路信号是否劣化，均在N路接收信号中选收一路接收信号相比，本实施例灵活的结合当前N路接收信号的质量参数，对第一合路信号在当前时刻是否劣化进行了判断，故在第一合路信号未劣化时，选取第一合路信号为待处理信号，不会浪费质量较好的合路信号带来的较高的接收增益，使得接收设备及接收设备所在的空间分集系统可以工作在高调模式，实现了通信距离的增 大，提升了通信容量，提升空间分集系统的效益；而且在第一合路信号劣化时，灵活的将第一合路信号筛除，不再根据该第一合路信号继续进行信号处理，避免对信号的接收流程产生不利影响；可以理解的，在筛除第一合路信号后的下一时刻，若通过监测确定第一合路信号的质量在所述下一时刻未劣化，且未劣化状态持续预设时长，则再次选取第一合路信号，及时利用第一合路信号的较高的接收增益。
本实施例通过监测N路接收信号，对通过合并N路接收信号获得的第一合路信号的质量进行了是否劣化的判断，并根据判断结果确定是否以第一合路信号为用于后续信号处理的待处理信号，即在第一合路信号的质量劣化时，不会继续使用第一合路信号，以避免影响通信活动的进行，且在第一合路信号的质量未劣化时，及时选取第一合路信号，充分利用第一合路信号带来的较高的接收增益，使空间分集系统的效益增大，提升了通信性能。
图3为本发明接收设备实施例二的第一结构示意图；图4为本发明接收设备实施例二的第二结构示意图。如图3和图4所示，本实施例是在图2所示的实施例的基础上，做出进一步的描述，具体的，设备还包括选收模块R，所述选收模块R与所述合并模块H通信连接，还与N个接收天线T1～TN通信连接；
所述监测控制模块C包括差值计算单元C1和加权系数确定单元C2；所述加权系数确定单元C2与所述合并模块H通信连接；
当所述选收模块R与所述差值计算单元C1通信连接，则前述监测控制模块C用于根据所述N路接收信号中的M路接收信号确定待处理信号，包括：
所述差值计算单元C1用于通知所述选收模块R所述合并模块H对所述N路接收信号进行合并处理后输出的所述第一合路信号不为待处理信号，触发所述选收模块R用于在N路接收信号中确定一路满足预设条件的接收信号为待处理信号；或者
当所述差值计算单元C1和所述加权系数确定单元C2通信连接，且所述选收模块R与所述差值计算单元C1无通信连接时，则所述监测控制模块C用于根据所述N路接收信号中的M路接收信号确定待处理信号，包括：
所述差值计算单元C1用于向所述加权系数确定单元C2通知合并指示信 息；
所述加权系数确定单元C2用于根据所述合并指示信息控制所述合并模块H，将N路接收信号中未引起所述第一合路信号的质量劣于所述N路接收信号中质量最优的接收信号的全部接收信号进行合并处理，向所述选收模块R输出第二合路信号。
监测控制模块C通过预测，对第一合路信号是否可作为待处理信号做以预测，则选收模块R可根据监测控制模块C的预测结果，将监测控制模块C确定的待处理信号(如根据监测控制模块C的通知，在N路接收信号中选出的一路接收信号，或者是合并模块输出的第二合路信号)传递至后续处理模块(图中未示出)。
本实施例通过监测N路接收信号，对通过合并N路接收信号获得的第一合路信号的质量进行了是否劣化的判断，并根据判断结果确定是否以第一合路信号为用于后续信号处理的待处理信号，即在第一合路信号的质量劣化时，不会继续使用第一合路信号，以避免影响通信活动的进行，且在第一合路信号的质量未劣化时，及时选取第一合路信号，充分利用第一合路信号带来的较高的接收增益，使空间分集系统的效益增大，提升了通信性能。
图5为本发明接收设备实施例三的结构示意图。如图5所示，本实施例是基于前述图3所示结构示意图的基础上，做出进一步的说明：
所述选收模块R包括缓存校验单元R1和确定单元R2，所述缓存校验单元R1和确定单元R2通信连接，所述缓存校验单元R1与所述合并模块H通信连接；具体的，缓存校验单元R1与所述合并模块H的输出端O通信连接；所述缓存校验单元R1还与差值计算单元C1通信连接；
可选的，所述监测控制模块还包括最优确定单元C3，所述最优确定单元C3与所述解调模块A和所述差值计算单元C1通信连接；
所述最优确定单元C3用于根据所述解调模块A获取的N路接收信号的质量参数，在所述N路接收信号中确定质量最优的接收信号；
所述差值计算单元C1用于将所述质量最优的接收信号的质量参数与N路接收信号中每一路接收信号的质量参数相减，获得各路接收信号对应的差值；
所述差值计算单元C1还用于根据各路接收信号对应的差值，对各路接收 信号的使能状态进行更新。
可选的，当所述质量参数为信噪比，则所述差值计算单元C1在对各路接收信号的使能状态进行更新时，包括：
若所述接收信号的使能状态为有效，且该接收信号对应的差值大于上限值，则所述差值计算单元C1具体用于将所述接收信号的使能状态更新为无效；
若所述接收信号的使能状态为有效，且该接收信号对应的差值不大于上限值，则所述差值计算单元C1保持所述接收信号的使能状态为有效；
若所述接收信号的使能状态为无效，且该接收信号对应的差值小于下限值，则所述差值计算单元C1将所述接收信号的使能状态更新为有效；
若所述接收信号的使能状态为无效，且该接收信号对应的差值不小于下限值，则所述差值计算单元C1保持所述接收信号的使能状态为无效。
在对各路接收信号的使能状态更新后，差值计算单元C1用于判断所述N路接收信号中是否存在使能状态为无效的接收信号，
若是，则所述差值计算单元C1预测所述第一合路信号的质量优于所述N路接收信号中质量最优的接收信号；
若否，则所述差值计算单元C1预测所述第一合路信号的质量劣于所述N路接收信号中质量最优的接收信号。
需要说明的是，前述最优确定单元C3也可省略，例如N为2时，差值计算单元C1可直接对两路接收信号的质量参数做差，若两路接收信号的质量参数之间的差值超过预设值时，便可确定该两路接收信号合并后获得的第一合路信号的质量会劣于两路接收信号中某一路接收信号的质量。
进一步的，当所述确定单元R2还与差值计算单元C1通信连接时，在差值计算单元C1预测第一合路信号的质量优于所述N路接收信号中质量最优的接收信号后，则所述差值计算单元C1还用于通知所述确定单元R2所述合并模块H对所述N路接收信号进行合并处理后输出的所述第一合路信号为待处理信号。
由于合路信号有较高的增益，则在合路信号的质量未劣化时，选收模块R中的确定单元R2会优先选收合路信号；但受外界温度变化或外界应力(如冰雹砸在发送设备或接收设备的外壳上)，N路接收信号中会存在发生了相 跳的接收信号，若发生了相跳的接收信号参与合并处理，则获得的合路信号即使质量未劣化，但根据该合路信号获取信息时，则会出现误码，影响信息的接收；而发生相跳的接收信号不能被监测控制模块C发现，因此选收模块R中设有缓存校验单元R1，从而监测控制模块C确定第一合路信号为待处理信号后，缓存校验单元R1对第一合路信号进行进一步的检测；例如可以采用FEC(Forward Error Correction，前向纠错)校验，判断第一合路信号是否处于无误码状态；
具体的，选收模块R中的缓存校验单元R1用于在所述差值计算单元C1确定所述合并模块H对所述N路接收信号进行合并处理后输出的所述第一合路信号为待处理信号之后，对所述合并模块H输出的所述第一合路信号进行校验；
所述确定单元R2用于当所述缓存校验单元R1确定所述第一合路信号处于无误码状态时，确定所述第一合路信号为待处理信号。
另外，若确定单元R2确定第一合路信号处于误码状态时，在N路接收信号中确定一路被所述缓存校验单元R1确定处于无误码状态的接收信号为待处理信号。
也就是说，本实施例中，只有确定单元R2确定的待处理信号，才是最终的待处理信号。
而在差值计算单元C1预测第一合路信号的质量劣于所述N路接收信号中质量最优的接收信号，则所述差值计算单元C1还用于通知所述确定单元R1所述合并模块H对所述N路接收信号进行合并处理后输出的所述第一合路信号不为待处理信号；则选收模块R在确定待处理信号时，所述缓存校验单元R1用于对所述N个接收天线发送的接收信号进行校验；
所述确定单元R2用于在N路接收信号中确定一路被所述缓存校验单元R1确定处于无误码状态的接收信号为待处理信号。
另外，可选的，缓存校验模块R1还用于在缓存所述第一合路信号时，缓存所述N路接收信号。
本实施例通过监测N路接收信号，对通过合并N路接收信号获得的第一合路信号的质量进行了是否劣化的判断，并根据判断结果确定是否以第一合路信号为用于后续信号处理的待处理信号，即在第一合路信号的质量劣化时， 不会继续使用第一合路信号，以避免影响通信活动的进行，且在第一合路信号的质量未劣化时，及时选取第一合路信号，充分利用第一合路信号带来的较高的接收增益，使空间分集系统的效益增大，提升了通信性能。
图6为本发明接收设备实施例五的结构示意图。如图6所示，本实施例是在图5所示的实施例的基础上，做出进一步的描述，具体的，考虑到N个接收天线对同一个发送天线发送的信号进行接收时，发送天线发送的信号经不同的传输路径传输，从而N个接收天线接收到接收信号的时刻也是不同的，故本实施例中合并模块H还包括时间对齐单元H1，因此N个接收天线接收的N路接收信号在输入解调模块A的同时，还输入时间对齐单元H1，使N路接收信号在时延保持一致后，由合并单元H2进行合并处理，随后输出给选收模块R；
由于通信环境实施多变，针对当前时刻接收的N路接收信号(Z1～ZN)确定的加权系数(W1～WN)的取值，不一定适用于下一时刻接收的N路接收信号，故本实施例中采用了反馈控制机制，即第一合路信号Q1输入至选收模块R的同时，Q1还传输至反馈控制模块F，反馈控制模块F根据Q1确定Q1对应的期望信号，随后使期望信号和Q1相减，获得的差异度反馈至加权系数确定单元C2，从而加权系数确定模块C2根据期望信号和Q1之间的差异度及Z1～ZN，自适应调整W1～WN的取值。
需要补充说明的是，图7为本发明接收设备实施例五中标准星座点的示意图。如图7所示，以4个标准星座点做以简单示例，该4个标准星座点(图中以“·”表示)位于复数坐标系，分别为(1+j)、(1-j)、(-1+j)和(-1-j)；发送设备在发送信息时将信息映射到标准星座点上，也可以说以标准星座点调制信息，获得信号，随后将信号通过发送天线发送给接收设备，接收设备对接收信号进行解调(此处可由反馈控制模块F中的解调单元F1进行解调)，假设信号传输过程中不受干扰，则接收设备接收到的接收信号会与发送设备发送的信号完全一致，则对接收信号解调后便会依次获得与上述标准星座点重合的各个点，但受传输干扰，接收设备的接收信号已与发送设备发送的信号之间存在误差，从而解调获得的点(图中以“×”表示)与标准星座点之间有偏差；例如，反馈控制模块F对Q1进行解调时，获得了点(0.5+j)，而点(0.5+j)与标准星座点(1+j)距离最近，故Q1以点(0.5+j)表征时，针对点(0.5+j)，确定标准星座点(1+j)为上述期望信号，而点(0.5+j)与标 准星座点(1+j)之间的距离可以表征Q1和期望信号之间的差异度。
本实施例通过监测N路接收信号，对通过合并N路接收信号获得的第一合路信号的质量进行了是否劣化的判断，并根据判断结果确定是否以第一合路信号为用于后续信号处理的待处理信号，即在第一合路信号的质量劣化时，不会继续使用第一合路信号，以避免影响通信活动的进行，且在第一合路信号的质量未劣化时，及时选取第一合路信号，充分利用第一合路信号带来的较高的接收增益，使空间分集系统的效益增大，提升了通信性能。
图8为本发明接收设备实施例六的结构示意图。如图8所示，本实施例是在图4所示的结构示意图的基础上，做出进一步的描述，具体的，所述选收模块R包括缓存校验单元R1和确定单元R2，所述缓存校验单元R1和确定单元R2通信连接，所述缓存校验单元R1与所述合并模块H通信连接；具体的，缓存校验单元R1与所述合并模块H的输出端O通信连接；
可选的，所述监测控制模块还包括最优确定单元C3，所述最优确定单元与所述解调模块A和所述差值计算单元C1通信连接；
所述最优确定单元C3用于根据所述解调模块获取的N路接收信号的质量参数，在所述N路接收信号中确定质量最优的接收信号；
所述差值计算单元C1用于将所述质量最优的接收信号的质量参数与N路接收信号中每一路接收信号的质量参数相减，获得各路接收信号对应的差值；
所述差值计算单元C1还用于根据各路接收信号对应的差值，对各路接收信号的使能状态进行更新。
可选的，当所述质量参数为信噪比，则所述差值计算单元C1在对各路接收信号的使能状态进行更新时，包括：
若所述接收信号的使能状态为有效，且该接收信号对应的差值大于上限值，则所述差值计算单元C1具体用于将所述接收信号的使能状态更新为无效；
若所述接收信号的使能状态为有效，且该接收信号对应的差值不大于上限值，则所述差值计算单元C1保持所述接收信号的使能状态为有效；
若所述接收信号的使能状态为无效，且该接收信号对应的差值小于下限值，则所述差值计算单元C1将所述接收信号的使能状态更新为有效；
若所述接收信号的使能状态为无效，且该接收信号对应的差值不小于下限值，则所述差值计算单元C1保持所述接收信号的使能状态为无效。
在对各路接收信号的使能状态更新后，差值计算单元C1用于判断所述N路接收信号中是否存在使能状态为无效的接收信号，
若是，则所述差值计算单元C1预测所述第一合路信号的质量劣于所述N路接收信号中质量最优的接收信号；
若否，则所述差值计算单元C1预测所述第一合路信号的质量优于所述N路接收信号中质量最优的接收信号。
进一步的，在差值计算单元C1预测第一合路信号的质量优于所述N路接收信号中质量最优的接收信号后，则所述差值计算单元C1用于向所述加权系数确定单元C2通知合并指示信息；所述合并指示信息可以为所述N路接收信号的使能状态；则所述加权系数确定单元C2具体是为使能状态为有效的接收信号确定加权系数，从而合并模块H对使能状态为有效的接收信号进行合并处理；由于差值计算单元C1确定第一合路信号的质量优于所述N路接收信号中质量最优的接收信号后，相当于N路接收信号的使能状态均为有效，则上述合并指示信息可以为N路接收信号的使能状态为有效，从而加权系数确定单元C2为N路接收信号确定加权系数，并将确定的N路接收信号的加权系数反馈至合并模块H，从而合并模块H由其输出端O向缓存校验单元R1输入的合路信号即为是对N路接收信号进行合并获得的第一合路信号。
由于合路信号有较高的增益，则在合路信号的质量未劣化时，选收模块R中的确定单元R2会优先选收合路信号；但受外界温度变化或外界应力(如冰雹砸在发送设备或接收设备的外壳上)，N路接收信号中会存在发生了相跳的接收信号，若发生了相跳的接收信号参与合并处理，则获得的合路信号即使质量未劣化，但根据该合路信号获取信息时，则会出现误码，影响信息的接收；而发生相跳的接收信号不能被监测控制模块C发现，因此选收模块R中设有缓存校验单元R1，从而监测控制模块C确定第一合路信号为待处理信号后，还需缓存校验单元R1对第一合路信号进行进一步的检测；例如可以采用FEC(Forward Error Correction，前向纠错)校验，判断第一合路信号是否处于无误码状态；
具体的，选收模块R中的缓存校验单元R1用于对所述合并模块H输出 的所述第一合路信号进行校验；
所述确定单元R2用于当所述缓存校验单元R1确定所述第一合路信号处于无误码状态时，确定所述第一合路信号为待处理信号。
另外，若所述缓存校验单元R1确定第一合路信号处于误码状态时，确定单元R2在N路接收信号中确定一路被所述缓存校验单元R1确定处于无误码状态的接收信号为待处理信号。
也就是说，本实施例中，只有确定单元R2确定的待处理信号，才是最终的待处理信号。
而在差值计算单元C1预测第一合路信号的质量劣于所述N路接收信号中质量最优的接收信号，则所述差值计算单元C1用于向所述加权系数确定单元C2通知合并指示信息；所述合并指示信息可以为所述N路接收信号的使能状态；所述加权系数确定单元用于根据所述合并指示信息控制所述合并模块，将N路接收信号中未引起所述第一合路信号的质量劣于所述N路接收信号中质量最优的接收信号的全部接收信号进行合并处理，向所述选收模块输出第二合路信号；具体的，所述加权系数确定单元C2根据合并指示信息，已知使能状态为无效的N-M路接收信号，从而该加权系数确定单元C2具体用于将所述N路接收信号中使能状态为无效的N-M路接收信号的加权系数置为0，并为使能状态为有效的M路接收信号确定加权系数，并将确定的N路接收信号的加权系数反馈至合并模块H，以使所述合并模块H对使能状态为有效的M路接收信号进行合并处理，输出第二合路信号。
在合并模块H输出的是第二合路信号时，与输出第一合路信号类似，考虑到用于合并形成第二合路信号的各路接收信号中，存在发生了相跳的接收信号，因此选收模块R中的缓存校验单元R1用于对所述合并模块H输出的所述第二合路信号进行校验；
所述确定单元R2用于当所述缓存校验单元R1确定所述第二合路信号处于无误码状态时，确定所述第二合路信号为待处理信号。
另外，若缓存校验单元R1确定第二合路信号处于误码状态时，确定单元R2在N路接收信号中确定一路被所述缓存校验单元R1确定处于无误码状态的接收信号为待处理信号。
也就是说，本实施例中，只有确定单元R2确定的待处理信号，才是最终 的待处理信号。
本实施例通过监测N路接收信号，对通过合并N路接收信号获得的第一合路信号的质量进行了是否劣化的判断，并根据判断结果确定是否以第一合路信号为用于后续信号处理的待处理信号，即在第一合路信号的质量劣化时，不会继续使用第一合路信号，以避免影响通信活动的进行，且在第一合路信号的质量未劣化时，及时选取第一合路信号，充分利用第一合路信号带来的较高的接收增益，使空间分集系统的效益增大，提升了通信性能。
图9为本发明接收设备实施例七的结构示意图。如图9所示，本实施例是在图8所示的实施例的基础上，做出进一步的描述，具体的，考虑到N个接收天线对同一个发送天线发送的信号进行接收时，发送天线发送的信号经不同的传输路径传输，从而N个接收天线接收到接收信号的时刻也是不同的，故本实施例中合并模块H还包括时间对齐单元H1，因此N个接收天线接收的N路接收信号在输入解调模块A的同时，还输入时间对齐单元H1，使N路接收信号在时延保持一致后，由合并单元H2进行合并处理，随后输出给选收模块R；
由于通信环境实施多变，针对当前时刻待处理的N路接收信号或N-M路接收信号确定的加权系数的取值，不一定适用于下一时刻接收的N路接收信号或N-M路接收信号，故本实施例中采用了反馈控制机制，若从合并单元H2输出的合路信号为第一合路信号Q1，Q1输入至选收模块R的同时，Q1还传输至反馈控制模块F，反馈控制模块F根据Q1确定Q1对应的期望信号，随后使Q1的期望信号和Q1相减，获得的差异度反馈至加权系数确定单元C2，从而加权系数确定模块C2根据期望信号和Q1之间的差异度及N路接收信号，自适应调整W1～WN的取值；若从合并单元H2输出的合路信号为第二合路信号Q2，Q2输入至选收模块R的同时，Q2还传输至反馈控制模块F，反馈控制模块F根据Q2确定Q2对应的期望信号，随后使Q2的期望信号和Q2相减，获得的差异度反馈至加权系数确定单元C2，从而加权系数确定模块C2根据期望信号和Q2之间的差异度及N-M路接收信号，自适应调整W1～WN的取值，其中具体的反馈控制过程可参见前述针对图7的描述。
本实施例通过监测N路接收信号，对通过合并N路接收信号获得的第一合路信号的质量进行了是否劣化的判断，并根据判断结果确定是否以第一合路信号为用于后续信号处理的待处理信号，即在第一合路信号的质量劣化时， 不会继续使用第一合路信号，以避免影响通信活动的进行，且在第一合路信号的质量未劣化时，及时选取第一合路信号，充分利用第一合路信号带来的较高的接收增益，使空间分集系统的效益增大，提升了通信性能。
需要补充说明的是，前述图2～图9所示的实施例中，接收设备中的各个模块及单元的划分，仅仅为一种逻辑功能划分，各个模块及单元在实现时，可以为实现相应功能的电路结构；可选的，在实际实现时还可以有另外的划分方式，例如多个模块或单元可以结合，如多个模块或单元可以集成为一个ASIC(Application Specific Integrated Circuit)芯片，具体如FPGA(Field－Programmable Gate Array，现场可编程门阵列)芯片、CPLD(Complex Programmable Logic Device,复杂可编程逻辑器件)芯片、DSP(Digital Signal Process,数字信号处理)芯片；还可能的，上述各个模块或单元也可以是单独物理存在；进一步可以分为多个模块或单元，或一些特征可以忽略，或不执行。另一点，各个模块、单元之间的通信连接，具体可通过一些接口，间接耦合或直接耦合的方式实现通信连接，该通信连接可以是电性，机械或其它的形式。
图10为本发明接收设备实施例八的结构示意图。如图10所示，本实施例中接收设备包括：
监测控制模块11，用于实时监测N路接收信号的质量参数；所述N路接收信号是通过采用N个接收天线针对发送设备上同一个发送天线发送的信号进行接收获得的；；
预测模块12，用于根据所述N路信号的质量参数预测对N路接收信号进行合并处理后获得的第一合路信号的质量是否优于所述N路接收信号中质量最优的接收信号；
确定模块13，用于若预测所述第一合路信号的质量优于所述N路接收信号中质量最优的接收信号，则确定所述第一合路信号为待处理信号；
若预测所述第一合路信号的质量劣于所述N路接收信号中质量最优的接收信号，则根据所述N路接收信号中的M路接收信号确定待处理信号；
其中，N为不小于2的整数，M为大于0且小于N的整数。
本实施例通过监测N路接收信号，对通过合并N路接收信号获得的第一合路信号的质量进行了是否劣化的判断，并根据判断结果确定是否以第一合 路信号为用于后续信号处理的待处理信号，即在第一合路信号的质量劣化时，不会继续使用第一合路信号，以避免影响通信活动的进行，且在第一合路信号的质量未劣化时，及时选取第一合路信号，充分利用第一合路信号带来的较高的接收增益，使空间分集系统的效益增大，提升了通信性能。
图11为本发明接收设备实施例九的结构示意图。如图11所示，本实施例是在图10所示的实施例的基础上，做出进一步的描述，具体如下：
所述确定模块13用于根据所述N路接收信号中的M路接收信号确定待处理信号时，具体用于在N路接收信号中确定一路满足预设条件的接收信号为待处理信号；或者
具体用于将N路接收信号中未引起所述第一合路信号的质量劣于所述N路接收信号中质量最优的信号的全部接收信号进行合并处理，获得第二合路信号；
确定所述第二合路信号为待处理信号。
更优的，在所述确定模块13用于确定所述第一合路信号为待处理信号之前，还用于确定所述第一合路信号处于无误码状态。
更优的，在所述确定模块13用于确定所述第二合路信号为待处理信号之前，还用于确定所述第二合路信号处于无误码状态。
另外，若所述确定模块13在确定所述第一合路信号处于误码状态，或者确定所述第二合路信号处于误码状态，则还用于在N路接收信号中确定任一路处于无误码状态的接收信号为待处理信号。
进一步的，所述确定模块13在N路接收信号中确定一路满足预设条件的接收信号为待处理信号时，具体用于在N路接收信号中确定一路处于无误码状态的接收信号为待处理信号。
进一步的，上述监测控制模块11在实时监控N路接收信号的质量参数时，具体用于根据N路接收信号的质量参数，在N路接收信号中确定质量最优的接收信号；将所述质量最优的接收信号的质量参数与N路接收信号中每一路接收信号的质量参数相减，获得各路接收信号对应的差值；根据各路接收信号对应的差值，对各路接收信号的使能状态进行更新。
其中，当所述质量参数为信噪比，则监测控制模块在对所述使能状态进行更新时，具体用于若所述接收信号的使能状态为有效，且该接收信号对应 的差值大于上限值，则将所述接收信号的使能状态更新为无效；若所述接收信号的使能状态为有效，且该接收信号对应的差值不大于上限值，则保持所述接收信号的使能状态为有效；若所述接收信号的使能状态为无效，且该接收信号对应的差值小于下限值，则将所述接收信号的使能状态更新为有效；若所述接收信号的使能状态为无效，且该接收信号对应的差值不小于下限值，则保持所述接收信号的使能状态为无效。
进一步的，预测模块12在根据所述N路信号的质量参数预测对N路接收信号进行合并处理后获得的第一合路信号的质量是否优于所述N路接收信号中质量最优的接收信号时，具体用于判断所述N路接收信号中是否存在使能状态为无效的接收信号，
若是，则预测所述第一合路信号的质量劣于所述N路接收信号中质量最优的接收信号；
若否，则预测所述第一合路信号的质量优于所述N路接收信号中质量最优的接收信号。
进一步的，所述确定模块13在将N路接收信号中未引起所述第一合路信号的质量劣于所述N路接收信号中质量最优的信号的全部接收信号进行合并处理，获得第二合路信号时，具体用于筛除N路接收信号中使能状态为无效的N-M路接收信号，并将使能状态为有效的M路接收信号进行合并处理，获得第二合路信号。
另外可选的，接收设备还包括存储模块14，用于确定模块13在获得所述第一合路信号或所述第二合路信号时，保留所述N路接收信号。
本实施例通过监测N路接收信号，对通过合并N路接收信号获得的第一合路信号的质量进行了是否劣化的判断，并根据判断结果确定是否以第一合路信号为用于后续信号处理的待处理信号，即在第一合路信号的质量劣化时，不会继续使用第一合路信号，以避免影响通信活动的进行，且在第一合路信号的质量未劣化时，及时选取第一合路信号，充分利用第一合路信号带来的较高的接收增益，使空间分集系统的效益增大，提升了通信性能。
需要补充说明的是，图10～图11所示的接收设备中，各个模块的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个模块可以结合或者进一步可以分为多个模块或单元，或一些特征可以忽 略，或不执行。另一点，各个模块之间存在通信连接，具体可通过一些接口，间接耦合或直接耦合的方式实现通信连接，该通信连接可以是电性，机械或其它的形式。
另外，各个网元设备实施例中的各个模块可以集成在一个功能模块中，也可以是单独物理存在；且各个模块既可以采用硬件和/或软件的形式实现
图12为本发明接收设备实施例十的结构示意图。如图12所示，本实施例中，接收设备包括处理器21，该处理器21可以是ASIC芯片，具体如FPGA芯片、CPLD芯片、DSP芯片等；
处理器21用于实时监测N路接收信号的质量参数；所述N路接收信号是通过采用N个接收天线针对发送设备上同一个发送天线发送的信号进行接收获得的；；
根据所述N路信号的质量参数预测对N路接收信号进行合并处理后获得的第一合路信号的质量是否优于所述N路接收信号中质量最优的接收信号；
若预测所述第一合路信号的质量优于所述N路接收信号中质量最优的接收信号，则确定所述第一合路信号为待处理信号；
若预测所述第一合路信号的质量劣于所述N路接收信号中质量最优的接收信号，则根据所述N路接收信号中的M路接收信号确定待处理信号；
其中，N为不小于2的整数，M为大于0且小于N的整数。
进一步的，处理器21在用于根据所述N路接收信号中的M路接收信号确定待处理信号时，具体用于在N路接收信号中确定一路满足预设条件的接收信号为待处理信号；或者将N路接收信号中未引起所述第一合路信号的质量劣于所述N路接收信号中质量最优的信号的全部接收信号进行合并处理，获得第二合路信号；确定所述第二合路信号为待处理信号。
进一步的，处理器21在用于确定所述第一合路信号为待处理信号之前，还用于确定所述第一合路信号处于无误码状态。
进一步的，处理器21在用于确定所述第二合路信号为待处理信号之前，还用于确定所述第二合路信号处于无误码状态。
需补充的，处理器21若确定所述第一合路信号处于误码状态，或者确定所述第二合路信号处于误码状态，则还用于在N路接收信号中确定任一路处 于无误码状态的接收信号为待处理信号。
进一步的，处理器21在用于N路接收信号中确定一路满足预设条件的接收信号为待处理信号时，具体用于在N路接收信号中确定一路处于无误码状态的接收信号为待处理信号。
更具体的，处理器21在用于实时监控N路接收信号的质量参数，具体用于根据N路接收信号的质量参数，在N路接收信号中确定质量最优的接收信号；将所述质量最优的接收信号的质量参数与N路接收信号中每一路接收信号的质量参数相减，获得各路接收信号对应的差值；根据各路接收信号对应的差值，对各路接收信号的使能状态进行更新。
可选的，当所述质量参数为信噪比，则所述处理器21在用于对所述使能状态进行更新时，具体用于若所述接收信号的使能状态为有效，且该接收信号对应的差值大于上限值，则将所述接收信号的使能状态更新为无效；
若所述接收信号的使能状态为有效，且该接收信号对应的差值不大于上限值，则保持所述接收信号的使能状态为有效；
若所述接收信号的使能状态为无效，且该接收信号对应的差值小于下限值，则将所述接收信号的使能状态更新为有效；
若所述接收信号的使能状态为无效，且该接收信号对应的差值不小于下限值，则保持所述接收信号的使能状态为无效。
进一步的，处理器21在用于根据所述N路信号的质量参数预测对N路接收信号进行合并处理后获得的第一合路信号的质量是否优于所述N路接收信号中质量最优的接收信号时，具体用于判断所述N路接收信号中是否存在使能状态为无效的接收信号，
若是，则预测所述第一合路信号的质量劣于所述N路接收信号中质量最优的接收信号；
若否，则预测所述第一合路信号的质量优于所述N路接收信号中质量最优的接收信号。
进一步的，处理器21在用于将N路接收信号中未引起所述第一合路信号的质量劣于所述N路接收信号中质量最优的信号的全部接收信号进行合并处理，获得第二合路信号时，具体用于筛除N路接收信号中使能状态为无效的N-M路接收信号，并将使能状态为有效的M路接收信号进行合并处理， 获得第二合路信号。
可选的，处理器21还用于在获得所述第一合路信号或所述第二合路信号时，保留所述N路接收信号。
本实施例通过监测N路接收信号，对通过合并N路接收信号获得的第一合路信号的质量进行了是否劣化的判断，并根据判断结果确定是否以第一合路信号为用于后续信号处理的待处理信号，即在第一合路信号的质量劣化时，不会继续使用第一合路信号，以避免影响通信活动的进行，且在第一合路信号的质量未劣化时，及时选取第一合路信号，充分利用第一合路信号带来的较高的接收增益，使空间分集系统的效益增大，提升了通信性能。
图13为本发明接收信号的处理方法实施例一的流程示意图。如图13所示，本实施例的执行主体为前述图2～图12任一所示的接收设备，该接收设备实施了如下步骤：
S101、实时监测N路接收信号的质量参数。
所述N路接收信号是通过采用N个接收天线针对发送设备上同一个发送天线发送的信号进行接收获得的。具体的，接收设备在采用N个天线对发送设备发送的信号进行接收，获得N路接收信号时，实时监测N路接收信号的质量参数。
其中，N为不小于2的整数；可以理解的，发送设备与接收设备之间进行通信时，为了提高通信的可靠性，接收设备采用N个接收天线对发送设备上同一个发送天线发送的信号进行接收，获得了N路接收信号；即N路接收信号是上述发送设备上某个发送天线发送的信号经N路不同的路径传输产生的；随后对N路接收信号进行合并处理，提升接收增益。
但由于通信环境多变，同一信号经不同路径传输，产生的N路接收信号之间性能会有所差异，导致合并后获得的合路信号的性能劣化，影响接收设备后续的处理，故随着N个天线对发送设备发送的信号的持续接收，也需实时监测N路接收信号的质量参数，获知合并处理后获得的合路信号的性能是否劣化。
S102、根据所述N路信号的质量参数预测对N路接收信号进行合并处理后获得的第一合路信号的质量是否优于所述N路接收信号中质量最优的接收信号。
S103、若预测所述第一合路信号的质量优于所述N路接收信号中质量最优的接收信号，则确定所述第一合路信号为待处理信号。
若根据所述N路信号的质量参数预测对N路接收信号进行合并处理后获得的第一合路信号的质量优于所述N路接收信号中质量最优的接收信号，则第一合路信号的增益会高于N路接收信号中任意一路接收信号，则以第一合路信号继续进行后续的处理。
S104、若预测所述第一合路信号的质量劣于所述N路接收信号中质量最优的接收信号，则根据所述N路接收信号中的M路接收信号确定待处理信号。
M为大于0且小于N的整数；
具体的，若根据所述N路信号的质量参数预测对N路接收信号进行合并处理后获得的第一合路信号的质量劣于所述N路接收信号中质量最优的接收信号，则第一合路信号的增益未得到有效提升，则以该第一合路信号进行后续信号处理获得的通信质量不如以N路接收信号中质量最优的接收信号进行后续信号处理获得的通信质量好，故本实施例中不会继续根据第一合路信号进行信号处理，而是重新确定待处理信号，例如从N路接收信号中确定一路接收信号为待处理信号，或者将N路接收信号中的部分接收信号进行合并，以获得质量未劣化且具有较高接收增益的合路信号。
需要说明的是，信号的发送与接收是持续进行的，故S101监测操作也是实时进行的，故每当根据所述N路信号的质量参数预测对N路接收信号进行合并处理后获得的第一合路信号的质量不会劣化时，可根据该第一合路信号继续进行信号处理；当根据所述N路信号的质量参数确定对N路接收信号进行合并处理后获得的第一合路信号的质量劣化，则不再根据该第一合路信号继续进行信号处理，避免对信号的接收流程产生不利影响；与现有技术中无论合路信号是否劣化，均在N路接收信号中选收一路接收信号相比，本实施例灵活的结合当前N路接收信号的质量参数，对第一合路信号在当前时刻是否劣化进行了判断，故在第一合路信号未劣化时，选取第一合路信号为待处理信号，不会浪费质量较好的合路信号带来的较高的接收增益，使得接收设备及接收设备所在的空间分集系统可以工作在高调模式，实现了通信距离的增大，提升了通信容量，提升空间分集系统的效益；而且在第一合路信号劣化时，灵活的将第一合路信号筛除，不再根据该第一合路信号继续进行信号 处理，避免对信号的接收流程产生不利影响；可以理解的，在筛除第一合路信号后的下一时刻，若通过监测预测第一合路信号的质量在所述下一时刻未劣化，且持续预设时长均预测第一合路信号的质量未劣化，则再次选取第一合路信号，及时利用第一合路信号的较高的接收增益。
本实施例通过监测N路接收信号，对通过合并N路接收信号获得的第一合路信号的质量进行了是否劣化的判断，并根据判断结果确定是否以第一合路信号为用于后续信号处理的待处理信号，即在第一合路信号的质量劣化时，不会继续使用第一合路信号，以避免影响通信活动的进行，且在第一合路信号的质量未劣化时，及时选取第一合路信号，充分利用第一合路信号带来的较高的接收增益，使空间分集系统的效益增大，提升了通信性能。
图14为本发明接收信号的处理方法实施例二的流程示意图。如图14所示，本实施例在图13所示的实施例的基础上，做出进一步的描述：
S201、实时监测N路接收信号的质量参数。
在持续接收N路接收信号的同时，接收设备也在持续对接收的接收信号进行监测，在监测过程中，至少执行下述S202～S204。
S202、根据N路接收信号的质量参数，在N路接收信号中确定质量最优的接收信号。
可以理解的，信号的质量可以采用如信噪比、信号在星座图中的均方差等进行衡量，上述信噪比、均方差等均可作为上述质量参数；以信噪比为例，N路接收信号中信噪比最高的接收信号则为N路接收信号中质量最优的接收信号。
S203、将所述质量最优的接收信号的质量参数与N路接收信号中每一路接收信号的质量参数相减，获得各路接收信号对应的差值。
以质量最优的接收信号为标准，判断其他接收信号的质量，具体是以质量最优的接收信号的质量参数与N路接收信号中每一路接收信号的质量参数的差值，度量各路接收信号的质量是否劣化。
S204、根据各路接收信号对应的差值，对各路接收信号的使能状态进行更新。
可选的，若以信噪比为质量参数，则若某个接收信号对应的差值超过门限值，可认为该接收信号与质量最优的接收信号相比，劣化严重，若将该接 入信号进行合并，则会影响其他质量较好的接收信号，故获得的合路信号的接收增益没有得到有效增大，反而使得合路信号的质量劣化，故可将质量劣化严重的接收信号的使能状态置为无效；若某个接收信号对应的差值未超过门限值，可认为该接收信号与质量最优的接收信号相比，未劣化或劣化不严重，则将该接收信号进行合并，可使获得的合路信号的增益得到提高，故可将未劣化或劣化不严重的接收信号的使能状态置为有效。
但考虑到通信环境不稳定，同一路接收信号在当前时刻信噪比低、但在下一时刻信噪比过高，则会导致接收信号的使能状态在有效和无效之间反复变化，引起后续接收流程的反复变动，导致接收设备的工作状态不稳定，因此本实施例可选的，采用双门限，即设置了上限值和下限值，本实施例具体以质量参数为信噪比举例，则对信号的使能状态进行更新的过程具体如下：
若所述接收信号的使能状态为有效，且该接收信号对应的差值大于上限值，则将所述接收信号的使能状态更新为无效；
若所述接收信号的使能状态为有效，且该接收信号对应的差值不大于上限值，则保持所述接收信号的使能状态为有效；
若所述接收信号的使能状态为无效，且该接收信号对应的差值小于下限值，则将所述接收信号的使能状态更新为有效；
若所述接收信号的使能状态为无效，且该接收信号对应的差值不小于下限值，则保持所述接收信号的使能状态为无效。
通过上限值和下限值，接收信号的使能状态不会在有效和无效之间反复变化，利于后续处理过程稳定进行。
S205、判断所述N路接收信号中是否存在使能状态为无效的接收信号；若是，执行S206；若否，执行S207。
S206、预测所述第一合路信号的质量劣于所述N路接收信号中质量最优的接收信号，并根据所述N路接收信号中的M路接收信号确定待处理信号。
S207、预测所述第一合路信号的质量优于所述N路接收信号中质量最优的接收信号，并确定所述第一合路信号为待处理信号。
具体的，在N路接收信号中确定一路满足预设条件接收信号为待处理信号，该预设条件可以为N路接收信号中信噪比最高，或处于无误码状态；或者将N路接收信号中未引起所述第一合路信号的质量劣化的全部接收信号进 行合并处理，获得第二合路信号；随后确定所述第二合路信号为待处理信号。
本实施例通过监测N路接收信号，对通过合并N路接收信号获得的第一合路信号的质量进行了是否劣化的判断，并根据判断结果确定是否以第一合路信号为用于后续信号处理的待处理信号，即在第一合路信号的质量劣化时，不会继续使用第一合路信号，以避免影响通信活动的进行，且在第一合路信号的质量未劣化时，及时选取第一合路信号，充分利用第一合路信号带来的较高的接收增益，使空间分集系统的效益增大，提升了通信性能。
图15为本发明接收信号的处理方法实施例三的流程示意图。如图15所示，本实施例是在图13或图14所示的实施例的基础上，作出进一步的描述，本实施例可结合图2、图3、图5及图6所示的接收设备，具体包括：
S301、实时监测N路接收信号的质量参数。
S302、判断对N路接收信号进行合并处理后获得的第一合路信号的质量是否劣于N路接收信号中质量最优的接收信号，若是，执行S305，若否，执行S303。
执行S302时，可选的，可以参见S205～S207，即判断N路接收信号中是否存在使能状态为无效的接收信号，若存在，则确定第一合路信号的质量劣化；若不存在，则确定第一合路信号的质量未劣化。
具体的，以前述图5所示的接收设备为例，上述S302的具体执行过程如下：最优确定单元C3会在解调模块A输出的N路接收信号的信噪比中确定最大值，最优确定单元C3将获取到的最大值输入给差值计算单元C1，而且各路接收信号的信噪比也输入值差值计算单元C1，该差值计算单元C1根据最大值和各路信号的信噪比之间的差值，更新各路接收信号的使能状态；更新完成后，便根据各路信号的使能状态，预测第一合路信号的质量是否优于所述N路接收信号中质量最优的接收信号；
当预测第一合路信号的质量优于所述N路接收信号中质量最优的接收信号，所述差值计算单元C1还用于通知所述缓存校验单元R1所述合并模块H对所述N路接收信号进行合并处理后输出的所述第一合路信号为待处理信号；随后缓存校验单元R1执行S303；
当预测第一合路信号的质量劣于所述N路接收信号中质量最优的接收信 号，所述差值计算单元C1还用于通知所述缓存校验单元R1所述合并模块H对所述N路接收信号进行合并处理后输出的所述第一合路信号不为待处理信号；随后缓存校验单元R1执行S306。
需要说明的是，当N为2时，即以两路接收信号Z1和Z2为例，前述最优确定单元C3也可省略，差值计算单元C1可直接对两路接收信号的质量参数做差，若两路接收信号的质量参数之间的差值超过预设值时，便可确定该两路接收信号合并后获得的第一合路信号的质量会劣于两路接收信号中某一路接收信号的质量，与此同时，差值计算单元C1在决定向缓存校验单元R1输入用于通知第一合路信号的质量是否会劣于两路接收信号中某一路接收信号的质量的控制信号时，采用有效信号表示第一合路信号的质量不会劣于两路接收信号中某一路接收信号的质量；采用无效信号表示第一合路信号的质量劣于两路接收信号中某一路接收信号的质量；在具体决定输出有效信号或无效信号时，也可设置双预设值，即上限预设值和下限预设值，具体如下：
若当前的控制信号为有效信号，且Z1与Z2的信噪比之差大于上限预设值，则将所述控制信号更新为无效信号；
若当前的控制信号为有效信号，且Z1与Z2的信噪比之差不大于上限预设值，则保持所述控制信号为有效信号；
若当前的控制信号为无效信号，且Z1与Z2的信噪比之差小于下限预设值，则将所述控制信号更新为有效信号；
若当前的控制信号为无效信号，且Z1与Z2的信噪比之差不小于下限值，则保持所述接收信号为无效信号。
S303、判断第一合路信号是否处于无误码状态；若是，执行S304；若否，执行S305。
本实施例在应用于微波通信领域时，对用于进行后续处理的接收信号要求较高，需要求其在当前处于无误码状态。
S304、确定所述第一合路信号为待处理信号。
由于合并模块H不断输出第一合路信号，而缓存校验单元R1持续缓存该第一合路信号，并对其进行校验，同时将校验结果输出给确定单元R2，故在确定第一合路信号为无误码状态时，确定单元从缓存校验单元R1处读取第一合路信号作为待处理信号；
S305、在N路接收信号中确定一路处于无误码状态的接收信号为待处理信号。
由于N个接收天线也不断将N路接收信号输入给缓存校验单元R1，缓存校验单元R1持续缓存N路接收信号，并分别对N路接收信号进行校验，同时将校验结果输出给确定单元R2，故确定单元R2由缓存校验单元R1处读取一路处于无误码状态的接收信号作为待处理信号，随后输出至后续处理模块。
另外，若N路接收信号中处于无误码状态的接收信号的数目有多个，可以任选一路作为待处理信号；或者在多个处于无误码状态的接收信号中确定优先级最高的接收信号，该优先级可以根据接收信号的信噪比确定。
另外，选收模块R在获得第一合路信号的同时，保留N路接收信号，则在当前时刻一旦确定第一合路信号的质量劣化或处于误码状态，可立即在N路接收信号中读取一路处于无误码状态的接收信号作为待处理信号，可实现第一合路信号与N路接收信号之间的无缝切换；随后在下一时刻，发现第一合路信号质量未劣化或处于无误码状态，则立即读取第一合路信号，避免牺牲合路信号带来的较高的接收增益。
本实施例通过监测N路接收信号，对通过合并N路接收信号获得的第一合路信号进行了是否劣化的判断，控制第一合路信号参与选收或不参与选收，即在第一合路信号劣化时，不会使劣化的第一合路信号影响通信活动的进行，且在第一合路信号未劣化时，也不会忽略第一合路信号带来的较高的接收增益，使空间分集系统的效益增大，提升了通信性能。
图16为本发明接收信号的处理方法实施例四的流程示意图。如图16所示，本实施例是在图13或图14所示的实施例的基础上，作出进一步的描述，本实施例可结合图2、图4、图8及图9所示的接收设备；具体包括：
S401、实时监测N路接收信号的质量参数。
S402、判断对N路接收信号进行合并处理后获得的第一合路信号的质量是否劣于N路接收信号中质量最优的接收信号，若否，执行S403，若是，执行S406。
执行S402时，具体可以参见S205和S206，即判断N路接收信号中是否 存在使能状态为无效的接收信号，若存在，则确定第一合路信号的性能劣化；若不存在，则确定第一合路信号的性能未劣化。
S403、判断第一合路信号是否处于无误码状态，若是，执行S404；若否，执行S405。
S404、确定所述第一合路信号为待处理信号；
以图8所示的接收设备为例，若在S402中预测对N路接收信号进行合并处理后获得的第一合路信号的质量优于N路接收信号中质量最优的接收信号，则合并模块H会不断输出第一合路信号，而缓存校验单元R1持续缓存该第一合路信号，并对其进行校验，同时将校验结果输出给确定单元R2，故在确定第一合路信号为无误码状态时，确定单元从缓存校验单元R1处读取第一合路信号作为待处理信号。
S405、在N路接收信号中确定一路处于无误码状态的接收信号为待处理信号。
由于N个接收天线也不断将N路接收信号输入给缓存校验单元R1，缓存校验单元R1持续缓存N路接收信号，并分别对N路接收信号进行校验，同时将校验结果输出给确定单元R2，故确定单元R2由缓存校验单元R1处读取一路处于无误码状态的接收信号作为待处理信号，随后输出至后续处理模块。
另外，若N路接收信号中处于无误码状态的接收信号的数目有多个，可以任选一路作为待处理信号；或者在多个处于无误码状态的接收信号中确定优先级最高的接收信号，该优先级可以根据接收信号的信噪比确定。
S406、筛除N路接收信号中使能状态为无效的N-M路接收信号，并将使能状态为有效的M路接收信号进行合并处理，获得第二合路信号。
此时合并模块H输出第二合路信号。
S407、判断第二合路信号是否处于无误码状态，若是，执行S408，若否执行S405。
合并模块H不断输出第二合路信号，而缓存校验单元R1持续缓存该第二合路信号，并对其进行校验，同时将校验结果输出给确定单元R2，故在确定第一合路信号为无误码状态时，确定单元从缓存校验单元R1处读取第一合路信号作为待处理信号，即执行S408。
S408、确定所述第二合路信号为待处理信号。
另外，选收模块R在缓存第一合路信号或第二合路信号的同时，保留N路接收信号，则在当前时刻一旦确定第一合路信号的质量劣化或处于误码状态，或第二合路信号处于误码状态，可立即在N路接收信号中读取一路处于无误码状态的接收信号作为待处理信号，可实现第一合路信号或第二合路信号与N路接收信号之间的无缝切换；随后在下一时刻，发现第一合路信号质量未劣化或处于无误码状态，或者第二合路信号处于无误码状态，则立即读取第一合路信号或第二合路信号，避免牺牲合路信号带来的较高的接收增益。
本实施例通过监测N路接收信号，对通过合并N路接收信号获得的第一合路信号进行了是否劣化的判断，控制第一合路信号参与选收或不参与选收，即在第一合路信号劣化时，不会使劣化的第一合路信号影响通信活动的进行，且在第一合路信号未劣化时，也不会忽略第一合路信号带来的较高的接收增益，使空间分集系统的效益增大，提升了通信性能。
本领域普通技术人员可以理解：实现上述方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成，前述的程序可以存储于一计算机可读取存储介质中，该程序在执行时，执行包括上述方法实施例的步骤；而前述的存储介质包括：ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (24)

  1. 一种接收设备，其特征在于，至少包括：N个接收天线，合并模块、解调模块、监测控制模块；所述N个接收天线与所述合并模块、所述解调模块和所述监测模块通信连接；所述合并模块与所述监测控制模块通信连接；
    所述解调模块用于对N路接收信号进行解调获取N路接收信号的质量参数，并将N路接收信号的质量参数发送给所述监测控制模块；所述N路接收信号是通过采用所述N个接收天线针对发送设备上同一个发送天线发送的信号进行接收获得的；
    所述监测控制模块用于实时监测N路接收信号的质量参数；
    所述监测控制模块用于根据所述N路信号的质量参数，预测所述合并模块对N路接收信号进行合并处理后输出的第一合路信号的质量是否优于所述N路接收信号中质量最优的接收信号；
    若所述监测控制模块预测所述第一合路信号的质量优于所述N路接收信号中质量最优的接收信号，则确定所述合并模块对所述N路接收信号进行合并处理后输出的所述第一合路信号为待处理信号；
    若所述监测控制模块预测所述第一合路信号的质量劣于所述N路接收信号中质量最优的接收信号，则根据所述N路接收信号中的M路接收信号确定待处理信号；
    其中，N为不小于2的整数，M为大于0且小于N的整数。
  2. 根据权利要求1所述的接收设备，其特征在于，还包括选收模块，所述选收模块与所述合并模块通信连接，还与N个接收天线通信连接；
    所述监测控制模块包括差值计算单元和加权系数确定单元；所述加权系数确定单元与所述合并模块通信连接；
    当所述选收模块与所述差值计算单元通信连接，则所述监测控制模块用于根据所述N路接收信号中的M路接收信号确定待处理信号，包括：
    所述差值计算单元用于通知所述选收模块所述合并模块对所述N路接收信号进行合并处理后输出的所述第一合路信号不为待处理信号，触发所述选收模块用于在N路接收信号中确定一路满足预设条件的接收信号为待处理信号；或者
    当所述差值计算单元和所述加权系数确定单元通信连接，且所述选收模 块与所述差值计算单元无通信连接时，则所述监测控制模块用于根据所述N路接收信号中的M路接收信号确定待处理信号，包括：
    所述差值计算单元用于向所述加权系数确定单元通知合并指示信息；
    所述加权系数确定单元用于根据所述合并指示信息控制所述合并模块，将N路接收信号中未引起所述第一合路信号的质量劣于所述N路接收信号中质量最优的接收信号的全部接收信号进行合并处理，向所述选收模块输出第二合路信号。
  3. 根据权利要求2所述的接收设备，其特征在于，所述选收模块包括缓存校验单元和确定单元，所述缓存校验单元和确定单元通信连接，所述缓存校验单元与所述合并模块通信连接；
    所述缓存校验单元用于在所述监测控制模块确定所述合并模块对所述N路接收信号进行合并处理后输出的所述第一合路信号为待处理信号之后，对所述合并模块输出的所述第一合路信号进行校验；
    所述确定单元用于当所述缓存校验单元确定所述第一合路信号处于无误码状态时，确定所述第一合路信号为待处理信号。
  4. 根据权利要求3所述的接收设备，其特征在于，当所述确定单元与所述差值计算单元连接时，所述差值计算单元还用于在所述确定单元用于当所述缓存校验单元确定所述第一合路信号处于无误码状态时，确定所述第一合路信号为待处理信号之前，通知所述确定单元所述合并模块对所述N路接收信号进行合并处理后输出的所述第一合路信号为待处理信号。
  5. 根据权利要求2所述的接收设备，其特征在于，所述选收模块包括缓存校验单元和确定单元，所述缓存校验单元和确定单元通信连接，所述缓存校验单元与所述合并模块通信连接；
    所述缓存校验单元用于接收所述合并模块输出的所述第二合路信号，并对所述第二合路信号进行校验；
    所述确定单元用于当所述缓存校验单元确定所述第二合路信号处于无误码状态时，确定所述第二合路信号为待处理信号。
  6. 根据权利要求4或5所述的接收设备，其特征在于，若所述缓存校验单元确定所述第一合路信号处于误码状态，或者确定所述第二合路信号处于误码状态，则所述确定单元还用于在N路接收信号中确定任一路被所述缓存 校验单元确定处于无误码状态的接收信号为待处理信号。
  7. 根据权利要求2所述的接收设备，其特征在于，所述选收模块包括缓存校验单元和确定单元，所述缓存校验单元和确定单元通信连接，所述缓存校验单元与所述合并模块通信连接；所述确定单元与所述差值计算单元通信连接；
    所述选收模块用于在N路接收信号中确定一路满足预设条件的接收信号为待处理信号，包括：
    所述缓存校验单元用于对所述N个接收天线发送的接收信号进行校验；
    所述确定单元用于在N路接收信号中确定一路被所述缓存校验单元确定处于无误码状态的接收信号为待处理信号。
  8. 根据权利要求7所述的接收设备，其特征在于，所述差值计算单元还用于，在所述确定单元在N路接收信号中确定一路被所述缓存校验单元确定处于无误码状态的接收信号为待处理信号之前，通知所述确定单元所述合并模块对所述N路接收信号进行合并处理后输出的所述第一合路信号不为待处理信号。
  9. 根据权利要求2～8任一项所述的接收设备，其特征在于，所述监测控制模块还包括最优确定单元，所述最优确定单元与所述解调模块和所述差值计算单元通信连接；
    则所述监测控制模块用于在实时监测N路接收信号的质量参数，包括：
    所述最优确定单元用于根据所述解调模块获取的N路接收信号的质量参数，在所述N路接收信号中确定质量最优的接收信号；
    所述差值计算单元用于将所述质量最优的接收信号的质量参数与N路接收信号中每一路接收信号的质量参数相减，获得各路接收信号对应的差值；
    所述差值计算单元还用于根据各路接收信号对应的差值，对各路接收信号的使能状态进行更新。
  10. 根据权利要求9所述的接收设备，其特征在于，当所述质量参数为信噪比，则所述差值计算单元用于根据各路接收信号对应的差值，对各路接收信号的使能状态进行更新，包括：
    若所述接收信号的使能状态为有效，且该接收信号对应的差值大于上限值，则所述差值计算单元具体用于将所述接收信号的使能状态更新为无效；
    若所述接收信号的使能状态为有效，且该接收信号对应的差值不大于上限值，则所述差值计算单元保持所述接收信号的使能状态为有效；
    若所述接收信号的使能状态为无效，且该接收信号对应的差值小于下限值，则所述差值计算单元将所述接收信号的使能状态更新为有效；
    若所述接收信号的使能状态为无效，且该接收信号对应的差值不小于下限值，则所述差值计算单元保持所述接收信号的使能状态为无效。
  11. 根据权利要求10所述的接收设备，其特征在于，所述监测控制模块用于预测对N路接收信号进行合并处理后输出的第一合路信号的质量是否优于所述N路接收信号中质量最优的接收信号，包括：
    所述差值计算单元用于判断所述N路接收信号中是否存在使能状态为无效的接收信号，
    若是，则所述差值计算单元确定所述第一合路信号的质量优于所述N路接收信号中质量最优的接收信号；
    若否，则所述差值计算单元确定所述第一合路信号的质量劣于所述N路接收信号中质量最优的接收信号。
  12. 根据权利要求2～11任一项所述的接收设备，其特征在于，所述合并指示信息为所述N路接收信号的使能状态；
    所述加权系数确定单元用于根据所述合并指示信息控制所述合并模块，将N路接收信号中未引起所述第一合路信号的质量劣于所述N路接收信号中质量最优的接收信号的全部接收信号进行合并处理，向所述选收模块输出第二合路信号，包括：
    所述加权系数确定单元具体用于将所述N路接收信号中使能状态为无效的N-M路接收信号的加权系数置为0，并为使能状态为有效的M路接收信号确定加权系数，以使所述合并模块对使能状态为有效的M路接收信号进行合并处理，输出第二合路信号。
  13. 根据权利要求2～12任一项所述的接收设备，其特征在于，所述缓存校验单元还用于在缓存所述第一合路信号或所述第二合路信号时，缓存所述N路接收信号。
  14. 一种接收信号的处理方法，其特征在于，包括：
    实时监测N路接收信号的质量参数；所述N路接收信号是通过采用N个 接收天线针对发送设备上同一个发送天线发送的信号进行接收获得的；
    根据所述N路信号的质量参数预测对N路接收信号进行合并处理后获得的第一合路信号的质量是否优于所述N路接收信号中质量最优的接收信号；
    若预测所述第一合路信号的质量优于所述N路接收信号中质量最优的接收信号，则确定所述第一合路信号为待处理信号；
    若预测所述第一合路信号的质量劣于所述N路接收信号中质量最优的接收信号，则根据所述N路接收信号中的M路接收信号确定待处理信号；
    其中，N为不小于2的整数，M为大于0且小于N的整数。
  15. 根据权利要求14所述的处理方法，其特征在于，根据所述N路接收信号中的M路接收信号确定待处理信号，包括：
    在N路接收信号中确定一路满足预设条件的接收信号为待处理信号；或者
    将N路接收信号中未引起所述第一合路信号的质量劣于所述N路接收信号中质量最优的信号的全部接收信号进行合并处理，获得第二合路信号；
    确定所述第二合路信号为待处理信号。
  16. 根据权利要求15所述的处理方法，其特征在于，所述确定所述第一合路信号为待处理信号之前，还包括：
    确定所述第一合路信号处于无误码状态。
  17. 根据权利要求15所述的处理方法，其特征在于，所述在确定所述第二合路信号为待处理信号之前，还包括：
    确定所述第二合路信号处于无误码状态。
  18. 根据权利要求16或17所述的处理方法，其特征在于，若确定所述第一合路信号处于误码状态，或者确定所述第二合路信号处于误码状态，则还包括：
    在N路接收信号中确定任一路处于无误码状态的接收信号为待处理信号。
  19. 根据权利要求15所述的处理方法，其特征在于，在N路接收信号中确定一路满足预设条件的接收信号为待处理信号，包括：
    在N路接收信号中确定一路处于无误码状态的接收信号为待处理信号。
  20. 根据权利要求15～19任一项所述的处理方法，其特征在于，实时监控N路接收信号的质量参数，包括：
    根据N路接收信号的质量参数，在N路接收信号中确定质量最优的接收信号；
    将所述质量最优的接收信号的质量参数与N路接收信号中每一路接收信号的质量参数相减，获得各路接收信号对应的差值；
    根据各路接收信号对应的差值，对各路接收信号的使能状态进行更新。
  21. 根据权利要求20所述的处理方法，其特征在于，当所述质量参数为信噪比，则所述使能状态进行更新包括：
    若所述接收信号的使能状态为有效，且该接收信号对应的差值大于上限值，则将所述接收信号的使能状态更新为无效；
    若所述接收信号的使能状态为有效，且该接收信号对应的差值不大于上限值，则保持所述接收信号的使能状态为有效；
    若所述接收信号的使能状态为无效，且该接收信号对应的差值小于下限值，则将所述接收信号的使能状态更新为有效；
    若所述接收信号的使能状态为无效，且该接收信号对应的差值不小于下限值，则保持所述接收信号的使能状态为无效。
  22. 根据权利要求21所述的处理方法，其特征在于，根据所述N路信号的质量参数预测对N路接收信号进行合并处理后获得的第一合路信号的质量是否优于所述N路接收信号中质量最优的接收信号，包括：
    判断所述N路接收信号中是否存在使能状态为无效的接收信号，
    若是，则预测所述第一合路信号的质量劣于所述N路接收信号中质量最优的接收信号；
    若否，则预测所述第一合路信号的质量优于所述N路接收信号中质量最优的接收信号。
  23. 根据权利要求22所述的处理方法，其特征在于，将N路接收信号中未引起所述第一合路信号的质量劣于所述N路接收信号中质量最优的信号的全部接收信号进行合并处理，获得第二合路信号，包括：
    筛除N路接收信号中使能状态为无效的N-M路接收信号，并将使能状态为有效的M路接收信号进行合并处理，获得第二合路信号。
  24. 根据权利要求15～23任一项所述的处理方法，其特征在于，还包括：
    在获得所述第一合路信号或所述第二合路信号时，保留所述N路接收信号。
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