WO2021031787A1 - 路由器及其干扰消除装置、方法、及存储介质 - Google Patents
路由器及其干扰消除装置、方法、及存储介质 Download PDFInfo
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- WO2021031787A1 WO2021031787A1 PCT/CN2020/103834 CN2020103834W WO2021031787A1 WO 2021031787 A1 WO2021031787 A1 WO 2021031787A1 CN 2020103834 W CN2020103834 W CN 2020103834W WO 2021031787 A1 WO2021031787 A1 WO 2021031787A1
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- 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
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- 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
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- 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
- H04B1/12—Neutralising, balancing, or compensation arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/60—Router architectures
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Definitions
- the embodiment of the present invention relates to but not limited to the field of communication technology, and specifically relates to but not limited to a router and its interference cancellation device, method, and storage medium.
- the signal is submerged in the noise and the received signal cannot be demodulated; at the same time, due to the There are many functions, and various frequencies and signals are superimposed on each other, which increases the noise level, and the signal received by the wifi is submerged in the noise, resulting in the incorrect demodulation of the signal.
- routers deal with the interference or noise in the motherboard by checking the double rate (Double Data Rate, referred to as DDR) synchronous dynamic random access memory or high-speed serial computer expansion bus standard (Peripheral Component Interconnect Express, referred to as PCIE) on the motherboard.
- DDR Double Data Rate
- PCIE serial computer expansion bus standard
- the common methods we can solve for these interferences are basically to replace the frequency point or reduce the drive level of the DDR to reduce or weaken the interference, but some frequency points cannot be changed, once they are changed , Performance will be greatly affected. For these methods, it takes a lot of manpower and material resources to investigate the interference source, and it may not be perfect to completely solve the interference in the end.
- an embodiment of the present invention provides an interference cancellation device for a router, including: a communication signal receiving module, an interference signal acquisition module, and a signal noise reduction processing module;
- the communication signal receiving module is set to receive communication signals and send the communication signals to the signal noise reduction processing module;
- the interference signal acquisition module is set to collect the second interference signal and send it to the signal noise reduction processing module;
- the signal noise reduction processing module It is configured to cancel the first interference signal in the communication signal according to the second interference signal to obtain a noise-reduced communication signal.
- an embodiment of the present invention also provides a router interference elimination method, which includes sending the received communication signal to the signal noise reduction processing module through a communication signal receiving module; The second interference signal is sent to the signal noise reduction processing module; the signal noise reduction processing module cancels the first interference signal in the communication signal according to the second interference signal to obtain a noise-reduced communication signal.
- an embodiment of the present invention also provides a router, including: a processor, a memory, and a communication bus; the communication bus is set to realize the connection and communication between the processor and the memory; the processor is set to execute the data stored in the memory
- a router including: a processor, a memory, and a communication bus; the communication bus is set to realize the connection and communication between the processor and the memory; the processor is set to execute the data stored in the memory
- the embodiments of the present invention also provide a computer-readable storage medium storage.
- the computer-readable storage medium stores one or more computer programs, and the one or more computer programs can be executed by one or more processors. , In order to achieve the steps of the interference cancellation method described above.
- the communication signal receiving module is set to receive communication signals and send the communication signals to signal reduction Noise processing module
- the interference signal acquisition module is set to collect the interference signal and send it to the signal noise reduction processing module
- the signal noise reduction processing module is set to cancel the first interference signal in the communication signal according to the second interference signal to obtain the noise reduced
- the communication signal can be realized including, but not limited to, the communication signal received by the router is subjected to interference signal cancellation processing to obtain a pure communication signal, and the pure signal can be demodulated normally in the receiver, so the present invention solves the problem Environmental noise and motherboard noise interfere with the signal, causing the problem of reduced signal-to-noise ratio and signal demodulation distortion, which can effectively enhance the demodulation and communication capabilities of the signal, and at the same time, eliminate the need for interference sources to save money. Manpower and material resources.
- FIG. 1 is a structural block diagram of an interference cancellation device for a router according to Embodiment 1 of the present invention
- Fig. 2 is a schematic diagram of a Wiener filter according to the first embodiment of the present invention.
- FIG. 3 is a schematic diagram of an adaptive filter diagram according to Embodiment 1 of the present invention.
- FIG. 4 is a schematic diagram of a transverse FIR filter according to Embodiment 1 of the present invention.
- FIG. 5 is a structural block diagram of one channel in a router interference cancellation device according to Embodiment 1 of the present invention.
- FIG. 6 is a structural block diagram of one channel in another router interference cancellation device according to the first embodiment of the present invention.
- FIG. 7 is a schematic diagram of a specific interference cancellation device of a router according to the second embodiment of the present invention.
- FIG. 8 is a schematic diagram of a specific interference cancellation device for a router according to Embodiment 3 of the present invention.
- FIG. 9 is a schematic flowchart of a method for eliminating interference on a router according to the fourth embodiment of the present invention.
- FIG. 10 is a schematic structural diagram of a router according to Embodiment 5 of the present invention.
- the interference cancellation device specifically includes: a communication signal receiving module 100, an interference signal acquisition module 110, and a signal noise reduction processing module 120.
- the communication signal receiving module 100 is configured to receive communication signals and send the communication signals to the signal noise reduction processing module 120;
- the communication signal received by the communication signal receiving module 100 includes a useful signal and a first interference signal, and the useful signal has a strong strength. It can be understood that the useful signal and the first interference signal are mixed together as the input signal of the signal noise reduction processing module 120.
- the interference signal acquisition module 110 is configured to collect a second interference signal and send it to the signal noise reduction processing module 120;
- the interference signal acquisition module 110 includes at least one of an environmental interference signal acquisition module and a motherboard interference signal acquisition module.
- the environmental interference signal acquisition module is set to collect the environmental interference signal of the router, and the motherboard interference signal acquisition module is set to the acquisition router.
- the internal motherboard interferes with the signal.
- the interference signal acquisition module includes an environmental interference signal acquisition module and a motherboard interference signal acquisition module, and the second interference signal includes an environmental interference signal and a motherboard interference signal.
- the environmental interference signal acquisition module mainly receives environmental interference signals, and at the same time it receives some useful signals with weaker strength. After the above-mentioned environmental interference signal is superimposed with the interference signal of the main board, a total second interference signal is generated.
- the interference signal acquisition module 110 sends the second interference signal to the signal noise reduction processing module 120, so that the second interference signal is used as the signal noise reduction processing module 120 reference input signal.
- the signal noise reduction processing module 120 cancels the first interference signal in the communication signal according to the second interference signal to obtain the communication signal after noise reduction is used.
- the signal noise reduction processing module 120 includes but is not limited to any of the following: a Wiener filter, an adaptive filter, and a transverse FIR filter.
- the signal noise reduction processing module 120 includes a Wiener filter
- X(n) is a communication signal
- Q(n) is an interference signal
- Y(n) is an output signal, which is filtered by the Wiener filter.
- the device can minimize the interference signal in the communication signal, and the output signal obtained is a pure communication signal.
- the signal denoising processing module 120 includes an adaptive filter
- the adaptive filter generates the first tap coefficient according to the second interference signal
- the signal denoising processing module 120 calculates the first tap coefficient in the communication signal at the first moment according to the first tap coefficient.
- the first interference signal cancellation processing is performed to obtain the communication signal after the first noise reduction; the communication signal after the first noise reduction is used as negative feedback to make the adaptive filter generate the second tap coefficient; the signal noise reduction processing module 120 then The second tap coefficient cancels the first interference signal in the communication signal at the second time to obtain the communication signal after the second noise reduction.
- the communication signal after the nth noise reduction is a stable value
- output the nth reduction Communication signal after noise Please refer to Figure 3.
- the adaptive filter will automatically adjust the tap coefficient w(n) according to the value of the error signal e(n) to make it suitable for the input signal at the next moment, so that the output signal is closer to the expected signal until the mean square error Reached the minimum.
- the noise reduction processing of the adaptive filter outputs a communication signal gradually approaching the desired signal, that is, the purity of the output communication signal is gradually increased until the purity reaches a stable value.
- the signal noise reduction processing module 120 includes a transverse FIR filter
- x(n), x(n-1), x(n-2)...x(n-N+1) Is the composition of different delays of the same communication signal
- w(n) is the tap coefficient of the transverse FIR filter
- N is the order of the transverse FIR filter
- y(n) is the output signal
- d(n) is the desired signal
- e(n) is the error signal
- the error signal e(n) d(n)-y(n).
- the tap coefficient is adaptively adjusted according to the error signal e(n) to make it suitable for the input signal at the next moment, so that the output signal is closer to the desired signal.
- the mean square error of the transverse FIR filter will gradually decrease, but when the mean square error is not significantly reduced, this time indicates that the filter has converged to a stable value, and the mean square error is the smallest.
- the output y(n) of the transverse FIR filter is the optimal approximation value of the desired d(n).
- the transverse FIR filter achieves the output signal after the first interference signal in each communication signal is minimized, so that a pure communication signal can be obtained after noise reduction.
- the interference elimination device of the router may also include a signal-to-noise separation module.
- the signal-to-noise separation module is configured to separate useful signals in the second interference signal; the interference signal collection module 110 sends the collected second interference signal to the signal-to-noise processing module 120 through the signal-to-noise separation module.
- the foregoing signal-to-noise separation module includes a power dividing unit 501, a phase delay unit 503, and a combining unit 502.
- the power dividing unit 501 is configured to divide the second interference signal into a first interference signal and a second interference signal;
- the phase delay unit 503 is configured to delay the phase of the second interference signal by 180 degrees to obtain the second path delay
- the bit interference signal is concurrently sent to the combining unit 502;
- the combining unit 502 is configured to separate the useful signal in the first interference signal and send it to the signal noise reduction processing module 120.
- the input terminal of the combining unit 502 is connected to the interference signal acquisition module 110, and the power dividing unit 501 divides the interference signal received from the interference signal acquisition module 110 into two channels, one is the first One is the interference signal, and the other is the second interference signal.
- the first interference signal enters the combining unit 502, the second interference signal enters the phase delay unit 503, and the second interference signal is sent to the combining unit 502 through the phase delay unit 503 after the phase delay unit 180 degrees.
- both the first interference signal and the second interference signal include useful signals. Compared with the second interference signal, the useful signal strength is weaker.
- the useful signal With regularity, useful signals can be converted into negative useful signals, thereby obtaining the second channel delay interference signal. Then, the first interference signal and the second extension interference signal are superimposed in the combining unit 502 to cancel the useful signal to obtain a pure second interference signal.
- the aforementioned signal-to-noise separation module further includes an amplifying unit 504, and the second-path delayed interference signal is amplified by the amplifying unit 504, and then sent to the combining unit 502.
- the power dividing unit 501 divides the second interference signal received from the interference signal acquisition module 110 into two channels, one is the first interference signal, and the other is the second interference signal.
- the first interference signal enters the combining unit 502, and the second interference signal enters the phase delay unit 503.
- the second interference signal enters the amplification unit 504 after the phase delay unit 503 is 180 degrees, and then passes through the amplification unit 504. After the large-scale processing, the signal is sent to the combining unit 502, and finally the useful signal amplitude in the second interference signal can be minimized by the combining unit 502, and then sent to the signal noise reduction processing module 120.
- an interference cancellation device for a router is configured to receive a communication signal through a communication signal receiving module and send the communication signal to the signal noise reduction processing module; an interference signal acquisition module is set to collect a second interference signal , And sent to the signal noise reduction processing module; the signal noise reduction processing module is set to cancel the first interference signal in the communication signal according to the second interference signal to obtain the noise-reduced communication signal, which effectively removes the external interference to the signal This leads to signal demodulation distortion and can enhance the router's strong communication capabilities.
- the device has anti-interference and practicality, and can solve the problem of signal-to-noise ratio degradation caused by signal interference caused by noise in the motherboard.
- FIG. 7 is a schematic diagram of a specific router interference cancellation device in an embodiment of the present invention.
- the communication signal receiving module 100 is configured to receive communication signals and send the communication signals to the signal noise reduction processing module 120.
- the communication signal received by the communication signal receiving module 100 includes a useful signal and a first interference signal, and the useful signal has a strong strength. In other words, the useful signal and the first interference signal are mixed together as the input signal of the signal noise reduction processing module 120.
- the interference signal collection module 110 is configured to collect the second interference signal and send it to the signal noise reduction processing module 120.
- the interference signal acquisition module 110 further includes an environmental interference signal acquisition module and a mainboard interference signal acquisition module.
- the environmental interference signal acquisition module mainly receives environmental noise signals and also receives some weaker useful signals.
- the above-mentioned environmental noise signal is superimposed with the noise signal of the main board to generate a total second interference signal.
- the interference signal acquisition module 110 sends the second interference signal to the signal noise reduction processing module 120, so that the second interference signal serves as the signal noise reduction processing module 120 reference input signal.
- the aforementioned signal noise reduction processing module 120 includes a transverse FIR filter.
- the tap coefficient is adaptively adjusted according to the error signal e(n) to make it suitable for the input signal at the next moment, so that the output signal is closer to the desired signal.
- the mean square error of the transverse FIR filter will gradually decrease, but when the mean square error is not significantly reduced, this time indicates that the filter has converged to a stable value, and the mean square error is the smallest.
- the output y(n) of the transverse FIR filter is the optimal approximation value of the desired d(n). Therefore, the transverse FIR filter achieves the output signal after the first interference signal in each communication signal is minimized, so that a pure communication signal can be obtained after noise reduction.
- the transceiver channel 700 performs signal down-conversion and demodulation on the pure communication signal.
- an interference cancellation device for a router is configured to receive a communication signal through a communication signal receiving module and send the communication signal to the signal noise reduction processing module; an interference signal acquisition module is set to collect a second interference signal , And sent to the signal noise reduction processing module; the signal noise reduction processing module is set to cancel the first interference signal in the communication signal according to the second interference signal to obtain the noise-reduced communication signal, which effectively removes the external interference to the signal This leads to signal demodulation distortion and can enhance the router's strong communication capabilities.
- the device has anti-interference and practicality, and can solve the problem of signal-to-noise ratio degradation caused by signal interference caused by noise in the motherboard.
- an embodiment of the present invention provides a specific interference elimination device for a router, see FIG. 8 .
- the device includes a communication signal receiving module 100, an interference signal acquisition module 110, a signal noise reduction processing module 120, and a signal noise separation module.
- the communication signal receiving module 100 is configured to receive communication signals and send the communication signals to the signal noise reduction processing module 120.
- the communication signal received by the communication signal receiving module 100 includes a useful signal and a first interference signal, and the useful signal has a strong strength. In other words, the useful signal and the first interference signal are mixed together as the input signal of the signal noise reduction processing module 120.
- the interference signal acquisition module 110 sends the collected second interference signal to the signal noise reduction processing module 120 through the signal-to-noise separation module; after receiving the second interference signal, the signal-to-noise separation module performs useful signals in the second interference signal. After separation, it is sent to the signal noise reduction processing module 120.
- the signal-to-noise separation module includes: a power dividing unit 501, a phase delay unit 503, a combining unit 502, and an amplifying unit 504.
- the power dividing unit 501 divides the second interference signal received from the interference signal acquisition module 110 into two paths, one is the first interference signal, and the other is the second interference signal.
- the first interference signal enters the combining unit 502, the second interference signal enters the phase delay unit 503, and the second interference signal is sent to the combining unit 502 through the phase delay unit 503 after the phase delay unit 180 degrees.
- both the first interference signal and the second interference signal include useful signals. Compared with the second interference signal, the useful signal strength is weaker.
- the aforementioned signal noise reduction processing module 120 includes a transverse FIR filter.
- the tap coefficient is adaptively adjusted according to the error signal e(n) to make it suitable for the input signal at the next moment, so that the output signal is closer to the desired signal.
- the mean square error of the transverse FIR filter will gradually decrease, but when the mean square error is not significantly reduced, this time indicates that the filter has converged to a stable value, and the mean square error is the smallest.
- the output y(n) of the transverse FIR filter is the optimal approximation value of the desired d(n). Therefore, the transverse FIR filter achieves the output signal after the first interference signal in each communication signal is minimized, so that a pure communication signal can be obtained after noise reduction.
- the transceiver channel 700 performs signal down-conversion and demodulation on the pure communication signal.
- An interference cancellation device for a router provided by an embodiment of the present invention is configured to receive a communication signal through a communication signal receiving module and send the communication signal to the signal noise reduction processing module; the interference signal acquisition module is set to collect a second interference signal and send it concurrently Give the signal noise reduction processing module; the signal noise reduction processing module is set to cancel the first interference signal in the communication signal according to the second interference signal to obtain the reduced communication signal; the interference signal acquisition module will collect the second interference signal The signal-to-noise separation module sends the signal to the signal noise reduction processing module; after the signal-to-noise separation module receives the second interference signal, it separates the useful signal in the second interference signal and sends it to the signal noise reduction processing module.
- the device can effectively remove the signal demodulation distortion caused by external interference to the signal, and can enhance the strong communication ability of the router.
- the device has anti-interference and practicality, and can solve the signal interference caused by the noise in the motherboard. The problem of decreased signal-to-noise ratio.
- an embodiment of the present invention provides a schematic flowchart of a router interference elimination method.
- the interference elimination method specifically includes the following steps:
- S901 Send the received communication signal to the signal noise reduction processing module through the communication signal receiving module;
- the communication signal received by the communication signal receiving module includes a useful signal and a first interference signal, and the useful signal has a strong strength. It is understandable that the useful signal and the first interference signal are mixed together as the input signal of the signal noise reduction processing module.
- S902 Send the collected second interference signal to the signal noise reduction processing module through the interference signal acquisition module;
- the interference signal acquisition module includes at least one of the environmental interference signal acquisition module and the motherboard interference signal acquisition module.
- the environmental interference signal acquisition module is set to collect the environmental interference signal of the router
- the motherboard interference signal acquisition module is set to collect the internal router
- the motherboard interferes with the signal.
- the interference signal acquisition module includes an environmental interference signal acquisition module and a motherboard interference signal acquisition module
- the second interference signal includes an environmental interference signal and a motherboard interference signal.
- the environmental interference signal acquisition module mainly receives environmental interference signals, and at the same time it receives some useful signals with weaker strength.
- the above-mentioned environmental noise signal is superimposed with the noise signal of the motherboard to generate a total second interference signal.
- the interference signal acquisition module sends the second interference signal to the signal noise reduction processing module, so that the second interference signal is used as a reference for the signal noise reduction processing module input signal.
- the signal noise reduction processing module cancels the first interference signal in the communication signal according to the second interference signal to obtain a noise-reduced communication signal.
- the signal noise reduction processing module includes but is not limited to any of the following: Wiener filter, adaptive filter, and transverse FIR filter.
- the signal noise reduction processing module includes a Wiener filter
- X(n) is the communication signal
- Q(n) is the interference signal
- Y(n) is the output signal, which passes through the Wiener filter.
- the interference signal in the communication signal can be minimized, and the output signal obtained is a pure communication signal.
- the signal noise reduction processing module includes an adaptive filter
- ..xN(n) is any group of communication signals
- w (n) is the tap coefficient of the adaptive filter
- N is the order of the adaptive filter
- y(n) is the output signal
- d(n) is the desired signal
- e(n) is the error signal
- the error signal e (n) d(n)-y(n).
- the adaptive filter will automatically adjust the tap coefficient w(n) according to the value of the error signal e(n) to make it suitable for the input signal at the next moment, so that the output signal is closer to the expected signal until the mean square error Reached the minimum.
- the noise reduction processing of the adaptive filter outputs a communication signal gradually approaching the desired signal, that is, the purity of the output communication signal is gradually increased until the purity reaches a stable value.
- the signal noise reduction processing module includes a transverse FIR filter
- x(n), x(n-1), x(n-2)...x(n-N+1) It is the composition of different delays of the same communication signal
- w(n) is the tap coefficient of the transverse FIR filter
- N is the order of the transverse FIR filter
- y(n) is the output signal
- d(n) is the desired signal
- e (n) is the error signal
- the error signal e(n) d(n)-y(n).
- the tap coefficient is adaptively adjusted according to the error signal e(n) to make it suitable for the input signal at the next moment, so that the output signal is closer to the desired signal.
- the mean square error of the transverse FIR filter will gradually decrease, but when the mean square error is not significantly reduced, this time indicates that the filter has converged to a stable value, and the mean square error is the smallest.
- the output y(n) of the transverse FIR filter is the optimal approximation value of the desired d(n).
- the transverse FIR filter achieves the output signal after the first interference signal in each communication signal is minimized, so that a pure communication signal can be obtained after noise reduction.
- an interference elimination method for a router is configured to receive a communication signal through a communication signal receiving module, and send the communication signal to a signal noise reduction processing module;
- the interference signal acquisition module is set to collect the second interference signal and send it to the signal noise reduction processing module;
- the signal noise reduction processing module is set to cancel the first interference signal in the communication signal according to the second interference signal to obtain the reduced noise Communication signal, effectively remove the signal demodulation distortion caused by external interference to the signal, can enhance the router's strong communication ability, the device has anti-interference and practicality, and can solve the signal caused by the noise in the motherboard. Interference, the problem of reduced signal-to-noise ratio.
- This embodiment provides a router, as shown in FIG. 10, which includes a processor 111, a memory 112, and a communication bus 113, where:
- the communication bus 113 is configured to realize connection and communication between the processor 111 and the memory 112;
- the processor 111 is configured to execute one or more computer programs stored in the memory 112 to implement the steps in the interference cancellation method in the foregoing embodiments.
- This embodiment provides a computer-readable storage medium, which includes those implemented in any method or technology for storing information (such as computer-readable instructions, data structures, computer program modules, or other data). Volatile or non-volatile, removable or non-removable media.
- Computer readable storage media include but are not limited to RAM (Random Access Memory), ROM (Read-Only Memory, read-only memory), EEPROM (Electrically Erasable Programmable read only memory, charged Erasable Programmable Read-Only Memory) ), flash memory or other storage technology, CD-ROM (Compact Disc Read-Only Memory), digital versatile disk (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic storage devices, Or any other medium that can be used to store desired information and can be accessed by a computer.
- the computer-readable storage medium in this embodiment may be used to store one or more computer programs, and the stored one or more computer programs may be executed by a processor to implement the steps in the interference cancellation methods in the foregoing embodiments.
- This embodiment also provides a computer program, which can be distributed on a computer-readable medium and executed by a computable device to implement the steps in the interference cancellation method in the foregoing embodiments; and in some cases The steps shown or described can be performed in a different order from the order described in the foregoing embodiments.
- This embodiment also provides a computer program product, including a computer-readable device, and the computer-readable device stores the computer program as shown above.
- the computer-readable device in this embodiment may include the computer-readable storage medium as shown above.
- communication media usually contain computer-readable instructions, data structures, computer program modules, or other data in a modulated data signal such as a carrier wave or other transmission mechanism, and may include any information delivery medium. Therefore, the present invention is not limited to any specific combination of hardware and software.
- the communication signal receiving module is set to receive communication signals and send the communication signals to signal reduction Noise processing module
- the interference signal acquisition module is set to collect the interference signal and send it to the signal noise reduction processing module
- the signal noise reduction processing module is set to cancel the first interference signal in the communication signal according to the second interference signal to obtain the noise reduced
- the communication signal can be realized including, but not limited to, the communication signal received by the router is subjected to interference signal cancellation processing to obtain a pure communication signal, and the pure signal can be demodulated normally in the receiver, so the present invention solves the problem Environmental noise and motherboard noise interfere with the signal, causing the problem of reduced signal-to-noise ratio and signal demodulation distortion, which can effectively enhance the demodulation and communication capabilities of the signal, and at the same time, eliminate the need for interference sources to save money. Manpower and material resources.
Abstract
Description
Claims (10)
- 一种路由器的干扰消除装置,其中,包括:通信信号接收模块,干扰信号采集模块和信号降噪处理模块;所述通信信号接收模块,设置为接收通信信号,并将所述通信信号发给所述信号降噪处理模块;所述干扰信号采集模块,设置为采集第二干扰信号,并发给所述信号降噪处理模块;所述信号降噪处理模块,设置为根据所述第二干扰信号对所述通信信号中的第一干扰信号抵消处理得到降噪后的通信信号。
- 如权利要求1所述的干扰消除装置,其中,所述干扰信号采集模块包括环境干扰信号采集模块和主板干扰信号采集模块中的至少一个;所述环境干扰信号采集模块,设置为采集所述路由器的环境干扰信号;所述主板干扰信号采集模块,设置为采集所述路由器内部的主板干扰信号。
- 如权利要求2所述的干扰消除装置,其中,所述干扰信号采集模块包括环境干扰信号采集模块和主板干扰信号采集模块,所述第二干扰信号包括所述环境干扰信号和主板干扰信号;所述干扰消除装置还包括信噪分离模块,所述信噪分离模块,设置为对所述第二干扰信号中的有用信号进行分离;所述干扰信号采集模块将采集到的第二干扰信号通过所述信噪分离模块发给所述信号降噪处理模块。
- 如权利要求3所述的干扰消除装置,所述信噪分离模块包括功分单元、相位延迟单元、合路单元;所述功分单元,设置为将所述第二干扰信号分为第一路干扰信号和第二路干扰信号;所述相位延迟单元,设置为对所述第二路干扰信号的相位延迟180度后得到第二路延位干扰信号,并发给所述合路单元;所述合路单元,设置为对所述第一路干扰信号中的有用信号进行分离后,发给所述信号降噪处理模块。
- 如权利要求4所述的干扰消除装置,所述信噪分离模块还包括放大单元;所述放大单元,设置为将所述第二路延位干扰信号进行放大处理后,发给所述合路单元。
- 如权利要求1至5任一项所述的干扰消除装置,所述信号降噪处理模块包括自适应滤波器;所述自适应滤波器,设置为根据所述第二干扰信号产生第一抽头系数;所述信号降噪处理模块,设置为根据所述第一抽头系数对第一时刻通信信号中的第一干扰信号抵消处理,得到第一次降噪后的通信信号;所述第一次降噪后的通信信号作为负反馈使得所述自适应滤波器产生第二抽头系数;所述信号降噪处理模块,设置为再根据所述第二抽头系数对第二时刻通信信号中的第一干扰信号抵消处理,得到第二次降噪后的通信信号,直到第n次降噪后的通信信号为稳定值时,输出所述第n次降噪后的通信信号。
- 如权利要求6所述的干扰消除装置,所述自适应滤波器为横向FIR滤波器;所述第一时刻通信信号和所述第二时刻通信信号为同一通信信号的不同延时信号。
- 一种路由器的干扰消除方法,其中,包括:通过通信信号接收模块将接收到的通信信号发给信号降噪处理模块;通过干扰信号采集模块将采集到的第二干扰信号发给所述信号降噪处理模块;所述信号降噪处理模块根据所述第二干扰信号对所述通信信号中的第一干扰信号抵消处理得到降噪后的通信信号。
- 一种路由器,其中,包括:处理器、存储器及通信总线;所述通信总线设置为实现处理器和存储器之间的连接通信;所述处理器设置为执行存储器中存储的一个或者多个计算机程序,以实现如权利要求8所述的干扰消除方法的步骤。
- 一种计算机可读存储介质存储,其中,所述计算机可读存储介质存储有一个或者多个计算机程序,所述一个或者多个计算机程序可被一个或者多个处理器执行,以实现如权利要求8所述的干扰消除方法的步骤。
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