CN113078925A - Frame loss detection method, device, storage medium and device - Google Patents
Frame loss detection method, device, storage medium and device Download PDFInfo
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- CN113078925A CN113078925A CN202110288377.1A CN202110288377A CN113078925A CN 113078925 A CN113078925 A CN 113078925A CN 202110288377 A CN202110288377 A CN 202110288377A CN 113078925 A CN113078925 A CN 113078925A
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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
- H04B1/69—Spread spectrum techniques
- H04B1/713—Spread spectrum techniques using frequency hopping
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
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- H04L43/0823—Errors, e.g. transmission errors
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Abstract
The invention discloses a frame loss detection method, equipment, a storage medium and a device, wherein the method comprises the steps of carrying out parameter analysis on collected frequency hopping signals to be converted to obtain frequency hopping parameter analysis results of all frequency points, determining frequency hopping demodulation channels of all frequency points according to the frequency hopping parameter analysis results, detecting burst frame signals in the frequency hopping demodulation channels, synchronously recording time information corresponding to the burst frame signals according to the detection results, converging the time information corresponding to all the frequency hopping demodulation channels, and carrying out frequency hopping frame loss detection according to the convergence results and the frequency hopping parameter analysis results. Because the invention carries out frame loss detection on the frequency hopping signal according to the burst frame signal aggregation result and the frequency hopping parameter analysis result, compared with the prior art that the frequency hopping rule is identified through the frequency hopping pattern, the invention realizes that the frequency hopping rule is identified without the synchronization of the frequency hopping pattern, so that the frame loss detection is faster and more accurate, and the frame loss statistics efficiency is improved.
Description
Technical Field
The present invention relates to the field of satellite communications, and in particular, to a method, an apparatus, a storage medium, and a device for detecting frame loss.
Background
At present, the frequency hopping technology is a spread spectrum technology which carries out discrete hopping under the control of a pseudo random sequence on the carrier frequency of a traditional narrow-band modulation signal, thereby realizing the spectrum spreading, the frequency hopping communication obtains wide application in electronic systems such as military radio interference communication, civil mobile communication, modern radar and sonar and the like with excellent anti-interference performance, but the prior art detects the frame loss condition through the indication of a frequency hopping pattern set, not only the design difficulty is large, but also the detection efficiency is low, thereby having great risk of frame loss detection inaccuracy.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide a frame loss detection method, device, storage medium and device, aiming at solving the technical problem of low efficiency of detecting the frame loss condition through a frequency hopping pattern set in the prior art.
In order to achieve the above object, the present invention provides a frame loss detection method, which comprises the following steps:
carrying out parameter analysis on the acquired frequency hopping signal to be converted to obtain a frequency hopping parameter analysis result of each frequency point;
determining a frequency hopping demodulation channel of each frequency point according to the frequency hopping parameter analysis result;
detecting burst frame signals in the frequency hopping demodulation channel, and synchronously recording time information corresponding to the burst frame signals according to detection results;
and converging the time information corresponding to each frequency hopping demodulation channel, and carrying out frequency hopping frame loss detection according to a convergence result and the frequency hopping parameter analysis result.
Preferably, the step of determining the frequency hopping demodulation channel of each frequency point according to the frequency hopping parameter analysis result includes:
determining the frequency hopping time interval and the frequency hopping frequency point number corresponding to each frequency point according to the frequency hopping parameter analysis result;
and determining a frequency hopping demodulation channel corresponding to each frequency point according to the frequency hopping time interval and the frequency hopping frequency point number.
Preferably, the step of determining the frequency hopping demodulation channel corresponding to each frequency point according to the frequency hopping time interval and the number of frequency hopping frequency points includes:
determining the width of a frequency hopping band and the width of a frequency hopping frequency channel corresponding to the frequency hopping signal to be converted according to the frequency hopping parameter analysis result;
determining the number of frequency hopping points according to the width of a frequency hopping band and the width of a frequency hopping channel corresponding to the frequency hopping signal to be converted;
and determining a frequency hopping demodulation channel corresponding to each frequency point according to the frequency hopping point number and the frequency hopping time interval.
Preferably, the step of determining the frequency hopping demodulation channel corresponding to each frequency point according to the number of frequency hopping points and the frequency hopping time interval includes:
determining the number of frequency hopping channels corresponding to each frequency point according to the number of the frequency hopping channels;
and determining a frequency hopping demodulation channel corresponding to each frequency point according to the number of the frequency hopping channels and the frequency hopping time interval.
Preferably, the step of detecting the burst frame signal in the frequency hopping demodulation channel and synchronously recording the time information corresponding to the burst frame signal according to the detection result includes:
detecting burst frame signals in the frequency hopping demodulation channel, and extracting a frequency hopping period corresponding to the burst frame signals from the frequency hopping parameter analysis result;
detecting the burst frame signal according to the frequency hopping period and obtaining a detection result;
and synchronously recording the time information corresponding to the burst frame signal according to the detection result.
Preferably, the step of detecting the burst frame signal according to the frequency hopping period and obtaining a detection result includes:
detecting frame signals in each frequency hopping demodulation channel to obtain burst pulse signals;
determining a burst frame signal to be detected according to the burst pulse signal;
and detecting the burst frame signal according to the frequency hopping period and obtaining a detection result.
Preferably, the step of aggregating the time information corresponding to each frequency hopping demodulation channel and detecting frequency hopping frame loss according to the aggregation result and the frequency hopping parameter analysis result includes:
when detecting the frame signals in each frequency hopping demodulation channel, recording the current time information corresponding to each detected frame signal;
converging the recorded current time information, and determining burst frames and time information corresponding to each burst frame according to a convergence result, the detection result and the frequency hopping period;
and carrying out frequency hopping frame loss detection according to the time information corresponding to each burst frame and a preset time sequence.
In addition, in order to achieve the above object, the present invention further provides a frame loss detection device, where the frame loss detection device includes a memory, a processor, and a frame loss detection program stored in the memory and operable on the processor, and the frame loss detection program is configured to implement the steps of the frame loss detection method as described above.
In addition, to achieve the above object, the present invention further provides a storage medium, which stores a frame loss detection program, and the frame loss detection program, when executed by a processor, implements the steps of the frame loss detection method as described above.
In addition, in order to achieve the above object, the present invention further provides a frame loss detection apparatus, including:
the parameter analysis module is used for carrying out parameter analysis on the acquired frequency hopping signals to be converted to obtain frequency hopping parameter analysis results of each frequency point;
the channel determining module is used for determining the frequency hopping demodulation channel of each frequency point according to the frequency hopping parameter analysis result;
the information detection module is used for detecting the burst frame signal in the frequency hopping demodulation channel and synchronously recording the time information corresponding to the burst frame signal according to the detection result;
and the frame loss detection module is used for converging the time information corresponding to each frequency hopping demodulation channel and carrying out frequency hopping frame loss detection according to a convergence result and the frequency hopping parameter analysis result.
The method comprises the steps of obtaining frequency hopping parameter analysis results of all frequency points by performing parameter analysis on collected frequency hopping signals to be converted; determining a frequency hopping demodulation channel of each frequency point according to the frequency hopping parameter analysis result; detecting burst frame signals in the frequency hopping demodulation channel, and synchronously recording time information corresponding to the burst frame signals according to detection results; and converging the time information corresponding to each frequency hopping demodulation channel, and carrying out frequency hopping frame loss detection according to a convergence result and the frequency hopping parameter analysis result. Because the invention carries out frame loss detection on the frequency hopping signal according to the burst frame signal aggregation result and the frequency hopping parameter analysis result, compared with the prior art that the frequency hopping rule is identified through the frequency hopping pattern and the frequency hopping pattern change rule can not be known in a reverse frequency hopping communication system, the invention realizes that the frequency hopping rule is identified without the synchronization of the frequency hopping pattern, the synchronization of the frequency hopping pattern is not needed, the design difficulty is reduced, so that the frame loss detection is faster and more accurate, and the frame loss statistic efficiency is improved.
Drawings
Fig. 1 is a schematic structural diagram of a frame loss detection device in a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a flow chart of a frame loss detection method according to a first embodiment of the present invention;
FIG. 3 is a flow chart of a frame loss detection method according to a second embodiment of the present invention;
FIG. 4 is a flow chart of a frame loss detection method according to a third embodiment of the present invention;
fig. 5 is a block diagram of the frame loss detection apparatus according to the first embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a frame loss detection device in a hardware operating environment according to an embodiment of the present invention.
As shown in fig. 1, the frame loss detection apparatus may include: a processor 1001, such as a Central Processing Unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), and the optional user interface 1003 may further include a standard wired interface and a wireless interface, and the wired interface for the user interface 1003 may be a USB interface in the present invention. The network interface 1004 may optionally include a standard wired interface, a WIreless interface (e.g., a WIreless-FIdelity (WI-FI) interface). The Memory 1005 may be a Random Access Memory (RAM) Memory or a Non-volatile Memory (NVM), such as a disk Memory. The memory 1005 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the architecture shown in fig. 1 does not constitute a limitation of the frame loss detection device and may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, a memory 1005, identified as a computer storage medium, may include an operating system, a network communication module, a user interface module, and a frame loss detection program.
In the frame loss detection device shown in fig. 1, the network interface 1004 is mainly used for connecting to a background server and performing data communication with the background server; the user interface 1003 is mainly used for connecting user equipment; the frame loss detection device calls a frame loss detection program stored in the memory 1005 through the processor 1001 and executes the frame loss detection method provided by the embodiment of the invention.
Based on the hardware structure, the embodiment of the frame loss detection method is provided.
Referring to fig. 2, fig. 2 is a flowchart illustrating a frame loss detection method according to a first embodiment of the present invention.
In a first embodiment, the method for detecting frame loss comprises the following steps:
step S10: and carrying out parameter analysis on the acquired frequency hopping signals to be converted to obtain frequency hopping parameter analysis results of each frequency point.
It should be noted that the execution main body of this embodiment may be a frame loss detection system, or may be a device including a frame loss detection function. The device may be a computer, a notebook, a computer, a mobile phone, etc., which is not limited in this embodiment.
It should be understood that the frequency hopping signal to be converted may refer to a signal frequency shift keyed with a pseudo random sequence in frequency hopping communications.
It can be understood that the frequency hopping parameter analysis result may refer to information generated by performing data analysis on the frequency hopping signal to be converted through a preset parameter analysis model, and the frequency hopping parameter analysis result may be information such as a frequency hopping time interval, a sequence value of a frequency hopping sequence, and a symbol bandwidth corresponding to the frequency hopping signal to be converted.
In the specific implementation, the frame loss detection system performs parameter analysis on the acquired frequency hopping signal to be converted to obtain a frequency hopping parameter analysis result of each frequency point. The frame loss detection system may convert the analog signal into a digital signal through an analog-to-digital converter, where the analog-to-digital converter may be a converter that converts an analog quantity after comparison processing with a standard quantity into a discrete signal represented by a binary number.
Step S20: and determining the frequency hopping demodulation channel of each frequency point according to the frequency hopping parameter analysis result.
It should be noted that each frequency point may be a frequency hopping frequency point corresponding to a frequency hopping signal to be converted, a frequency hopping frequency point may refer to a specific absolute frequency value of the frequency hopping signal, and a frequency hopping frequency point may be a number of a fixed frequency of the frequency hopping signal, for example: all frequency intervals being X1KHz, thus according to X1Frequency interval of KHz from A1MHz、A2MHz、A3MHz～AnMHz is divided into j radio frequency sectionsNumbering each frequency band from 1, 2 and 3. I.e. the numbering of fixed frequencies is a frequency point. In a GSM network, the transmission frequency of a transceiver group can be specified by replacing the frequency with a frequency point, for example: the frequency point of one carrier is designated as 3, and the carrier receiving frequency is A3The MHz uplink signal is transmitted at the frequency of ahmhz, and the present embodiment does not limit the exemplary values.
It is understood that the frequency hopping demodulation channel may refer to a signal channel for correspondingly demodulating a frequency hopping signal, and the demodulation may refer to converting an analog signal transmitted from an analog communication line into a digital signal and transmitting the digital signal to a computer.
In the specific implementation, the frame loss detection system determines the frequency hopping demodulation channel of each frequency point according to the frequency hopping parameter analysis result.
Step S30: and detecting the burst frame signal in the frequency hopping demodulation channel, and synchronously recording the time information corresponding to the burst frame signal according to the detection result.
It should be noted that the burst frame signal may refer to a burst signal having a frame structure, and the burst signal refers to a sequence of signals that are calculated as a unit according to a specific criterion or metric in data communication. The frequency of the physical channel refers to the frequency of the TS, and all the TSs may be fixed frequencies or different frequencies, i.e., frame skipping. For example: in the GSM system, each TS has a distinct channel number and time slot number. In the GSM system, different repetition periods, i.e., frame structures, are formed according to the TS and the difference of the transmitted information. Each carrier frequency is defined as a TDMA basic frame, namely 8 TSs (TS 0-TS 7) form a TDMA basic frame, each frame is defined to have frame numbers, and the TDMA frame numbers are circularly numbered by taking 2, 715 and 648 frames as periods.
It is understood that the burst frame signal may be a data transmission of the detected burst signal in a physical frame structure. The detection of the burst signal may utilize either time domain data or frequency domain data. The algorithm based on time domain data comprises a direct energy algorithm, an energy statistical algorithm based on a short-time self-phase function, a high-order statistic method and a zero-crossing detection algorithm; the detection algorithm based on the frequency domain data mainly comprises a frequency domain energy statistical method and a cyclic spectrum calculation method. The detection method based on the time domain data is suitable for real-time detection of small burst-interval signals, the detection method based on the frequency domain data has strong noise suppression capability, is suitable for detection of burst signals with large burst intervals and low signal-to-noise ratio, and adopts different detection methods for different burst signals, so that the detection efficiency of the burst signals is improved, and the embodiment does not limit the detection efficiency. The detection result may be a result generated by extracting a frame signal corresponding to the burst signal, and each extracted frame signal is used as a synchronization object, the burst signal synchronization method may be based on a timing synchronization method of block processing and interpolation resampling, the signal is filtered, sampled, and sent to a data buffer for temporary storage, the timing estimation unit estimates a timing error by using a data block in the data buffer, and adjusts a sampling time by controlling an interpolation filter with the estimated timing error. Carrier frequency offset estimation and carrier phase estimation may also be performed using a block-based structure. For burst signals, a block-based structure may be used for synchronization when the burst data length meets the requirements of the data block.
It should be understood that the time information may refer to a time point corresponding to the detection of the burst frame signal, and the time information includes a time point corresponding to each frame signal. The point in time may be recorded by a time counter that counts cyclically.
In specific implementation, the frame loss detection system detects the burst frame signal in the frequency hopping demodulation channel, and synchronously records the time information corresponding to the burst frame signal according to the detection result. When detecting a frequency hopping demodulation channel, the frame loss detection system can firstly filter the signal acquired by the AD through down-conversion, wherein the filtering matching algorithm, the error estimation algorithm and the like are involved, the frequency hopping demodulation channel is determined when the demodulation processing is finished, and when the frequency hopping demodulation channel is determined, the frame signal in the frequency hopping demodulation channel is synchronously detected, so that the time information corresponding to the burst frame signal is synchronously recorded.
Step S40: and converging the time information corresponding to each frequency hopping demodulation channel, and carrying out frequency hopping frame loss detection according to a convergence result and the frequency hopping parameter analysis result.
It should be noted that the aggregation result may be a result obtained by summarizing and recording time information corresponding to each frame of burst frame signal recorded by the time counter. The aggregation result may be time information recorded for each frequency hopping demodulation channel.
It can be understood that the frequency hopping parameter analysis result may include information such as a frequency hopping period, a frequency hopping frequency point, a frequency point number, and the like corresponding to the frequency hopping signal to be detected.
In specific implementation, the frame loss detection system aggregates the time information corresponding to each frequency hopping demodulation channel, and performs frequency hopping frame loss detection according to the aggregation result and the frequency hopping parameter analysis result. The frame loss detection system can carry out statistics according to the frame loss detection result and output the statistical result, so that the frame loss detection result is more accurate.
In the embodiment, the frequency hopping parameter analysis result of each frequency point is obtained by performing parameter analysis on the acquired frequency hopping signal to be converted; determining a frequency hopping demodulation channel of each frequency point according to the frequency hopping parameter analysis result; detecting burst frame signals in the frequency hopping demodulation channel, and synchronously recording time information corresponding to the burst frame signals according to detection results; and converging the time information corresponding to each frequency hopping demodulation channel, and carrying out frequency hopping frame loss detection according to a convergence result and the frequency hopping parameter analysis result. Because the embodiment is based on gathering the result and the frequency hopping parameter analysis result to the burst frame signal and losing the frame detection to the frequency hopping signal, this embodiment discerns the frequency hopping law and in reverse frequency hopping communication system through the frequency hopping pattern for prior art, can't know frequency hopping atlas and frequency hopping pattern change law, this embodiment has realized not needing the synchronous frequency hopping law of discerning of frequency hopping pattern, need not the synchronous frequency hopping pattern, and the design degree of difficulty reduces to make the frame loss detect more swiftly accurate, promote the frame loss statistics high efficiency.
Referring to fig. 3, fig. 3 is a flowchart illustrating a second embodiment of the frame loss detection method according to the present invention, and the second embodiment of the frame loss detection method according to the present invention is proposed based on the first embodiment shown in fig. 2.
In this embodiment, the step S20 includes:
step S201: and determining the frequency hopping time interval and the frequency hopping frequency point number corresponding to each frequency point according to the frequency hopping parameter analysis result.
It should be noted that, the frequency hopping time interval may refer to a time between frequency hopping intervals corresponding to frequency hopping signals to be detected, and the frequency hopping interval may refer to a frequency interval between signals, for example: the output signals are 1MHz, 5MHz, and 9MHz, that is, the frequency hopping interval is 4MHz, and the embodiment does not limit the specific value of the frequency hopping interval, that is, the frequency hopping time interval is the time corresponding to the frequency hopping interval.
It can be understood that the number of frequency hopping points may refer to the number of frequency points in a frequency point set corresponding to a frequency hopping signal.
In the specific implementation, the frame loss detection system determines the frequency hopping time interval and the frequency hopping frequency point number corresponding to each frequency point according to the frequency hopping parameter analysis result. The frequency hopping time intervals corresponding to different frequency points are different.
Step S202: and determining a frequency hopping demodulation channel corresponding to each frequency point according to the frequency hopping time interval and the frequency hopping frequency point number.
It should be noted that there are multiple frequency hopping demodulation channels, one frequency point corresponds to one demodulation channel, and different frequency points correspond to different demodulation channels.
In the specific implementation, the frame loss detection system determines the frequency hopping demodulation channel corresponding to each frequency point according to the frequency hopping time interval and the number of the frequency hopping frequency points, that is, the frequency hopping demodulation channel is equivalent to the number of the frequency hopping frequency points, for example: there are m frequency points, that is, there are m frequency hopping demodulation channels.
In this embodiment, the step S202 includes: determining the width of a frequency hopping band and the width of a frequency hopping frequency channel corresponding to the frequency hopping signal to be converted according to the frequency hopping parameter analysis result; determining the number of frequency hopping points according to the width of a frequency hopping band and the width of a frequency hopping channel corresponding to the frequency hopping signal to be converted; and determining a frequency hopping demodulation channel corresponding to each frequency point according to the frequency hopping point number and the frequency hopping time interval.
It should be noted that the bandwidth of the frequency hopping band may refer to the frequency bandwidth corresponding to the frequency hopping signal, i.e. the frequency width occupied by the frequency hopping signal, and is mainly composed of the bandwidth of the frequency slots, the number of the frequency slots, and the arrangement of the frequency slots, i.e. the frequency hopping frequencyThe set configuration determines that if the symbol rate of the modulated signal is 1/T, the signal bandwidth should be 1/(2T) (not considering roll-off) according to the first Nyquist criterion, the modulated signal bandwidth should be 1/T, the frequency slot bandwidth is 1/T, and the frequency hopping frequency interval can be selected to be 1/T in order to reduce the adjacent interference as much as possible, so that the frequency fiIs exactly at fiThe peak of +1/T forms a frequency orthogonal relationship, so that if the frequency slot is N, the frequency hopping signal bandwidth is equal to N (1/T), the frequency slot may refer to a frequency slot occupied by the frequency hopping signal in each hop time, the frequency slot bandwidth may refer to a width of the frequency slot, and the frequency slot bandwidth is generally equal to 2 times of a bandwidth of the baseband signal, which is not limited in this embodiment. The channel width may be used to identify the data transmission capability of the signal transmission, to identify the amount of data passing through the link per unit time, and to identify the display capability of the display. Analog signal systems refer to the amount of data that can be transmitted over a fixed time, i.e., the ability to transfer data over a transmission channel, typically expressed in terms of transmission cycles per second or hertz (Hz).
Understandably, the number of frequency hopping points can refer to the number of frequency hopping points.
In specific implementation, the frame loss detection system can determine the width of a frequency hopping band and the width of a frequency hopping channel corresponding to a frequency hopping signal to be converted according to the frequency hopping parameter analysis result, and determine the number of frequency hopping points according to the width of the frequency hopping band and the width of the frequency hopping channel corresponding to the frequency hopping signal to be converted; and determining a frequency hopping demodulation channel corresponding to each frequency point according to the frequency hopping point number and the frequency hopping time interval.
Further, the step of determining the frequency hopping demodulation channel corresponding to each frequency point according to the frequency hopping point number and the frequency hopping time interval includes: determining the number of frequency hopping channels corresponding to each frequency point according to the number of the frequency hopping channels; and determining a frequency hopping demodulation channel corresponding to each frequency point according to the number of the frequency hopping channels and the frequency hopping time interval.
It should be noted that the number of frequency hopping channels is the number of frequency hopping channels, that is, the number of frequency hopping points corresponding to each frequency hopping signal, and each frequency hopping point corresponds to one frequency channel.
It will be appreciated that the number of hopping channels is related to both the bandwidth of the hopping band and the width of the hopping channel, which depends on the modulation scheme employed. Generally, the more the number of hopping points, the better.
In specific implementation, the frame loss detection system can determine the number of frequency hopping channels corresponding to each frequency point according to the frequency hopping frequency point book, and determine the frequency hopping demodulation channels corresponding to each frequency point according to the number of frequency hopping channels and the frequency hopping time interval.
The embodiment obtains a frequency hopping parameter analysis result of each frequency point by performing parameter analysis on the acquired frequency hopping signal to be converted, and determines the frequency hopping time interval and the frequency hopping frequency point number corresponding to each frequency point according to the frequency hopping parameter analysis result; determining a frequency hopping demodulation channel corresponding to each frequency point according to the frequency hopping time interval and the number of the frequency hopping frequency points, detecting burst frame signals in the frequency hopping demodulation channel, and synchronously recording time information corresponding to the burst frame signals according to a detection result; and converging the time information corresponding to each frequency hopping demodulation channel, and carrying out frequency hopping frame loss detection according to a convergence result and the frequency hopping parameter analysis result. Because the embodiment is based on gathering the result and the frequency hopping parameter analysis result to the burst frame signal and losing the frame detection to the frequency hopping signal, this embodiment discerns the frequency hopping law and in reverse frequency hopping communication system through the frequency hopping pattern for prior art, can't know frequency hopping atlas and frequency hopping pattern change law, this embodiment has realized not needing the synchronous frequency hopping law of discerning of frequency hopping pattern, need not the synchronous frequency hopping pattern, and the design degree of difficulty reduces to make the frame loss detect more swiftly accurate, promote the frame loss statistics high efficiency.
Referring to fig. 4, fig. 4 is a flowchart illustrating a third embodiment of the frame loss detection method according to the present invention, and the third embodiment of the frame loss detection method according to the present invention is proposed based on the first embodiment shown in fig. 2.
In this embodiment, the step S30 includes:
step S301: and detecting the burst frame signal in the frequency hopping demodulation channel, and extracting a frequency hopping period corresponding to the burst frame signal from the frequency hopping parameter analysis result.
It should be noted that the frequency hopping period may refer to a time occupied by each hop of the frequency hopping signal, that is, a set of a frequency hopping dwell time and a channel switching time, and the frequency hopping dwell time may refer to a time when the frequency hopping signal transmits or receives information on each channel.
It is to be understood that the burst frame signal may be a signal transmitted in a time slot based on time division multiplexing of a physical channel.
In specific implementation, the frame loss detection system detects the burst frame signal in the frequency hopping demodulation channel through the frame synchronization detection module, and extracts the frequency hopping period corresponding to the burst frame signal from the frequency hopping parameter analysis result.
And S302, detecting the burst frame signal according to the frequency hopping period and obtaining a detection result.
It should be noted that the detection result may be a result obtained by comparing, when the frame loss detection system detects the burst frame, the frequency hopping period corresponding to the burst frame with the detection result corresponding to the burst frame signal.
It can be understood that, when the burst frame signal is subjected to frame synchronization detection, the frame loss detection system detects each frame structure corresponding to the burst frame signal to obtain a detection result.
In the specific implementation, the frame loss detection system converts the frequency of the signal acquired by the AD into a baseband signal through down conversion, receives and filters the baseband signal to perform filtering matching on the lace signal, estimates the filtered signal according to an error estimation algorithm, and demodulates the filtered signal by the same staff. The demodulated signal is subjected to synchronous detection, the synchronous detection may be performed by performing error correction on the demodulated signal through a timing synchronization algorithm, and a time point at which a pulse signal is generated is recorded by the frame synchronization detection module, and a time counter may be used for recording the time point, which is not limited in this embodiment.
Step S303: and synchronously recording the time information corresponding to the burst frame signal according to the detection result.
It should be noted that the synchronous recording may be performed by a frame synchronization detection module, and the frame synchronization detection module may detect the burst frame signal by using algorithms such as a timing synchronization algorithm, a frequency estimation algorithm, and an initial phase estimation algorithm, which is not limited in this embodiment, and synchronously record time information corresponding to the burst frame signal according to a detection result.
It is understood that the time information corresponding to the burst frame signal may be a set of information of time points corresponding to the burst signal in each demodulation channel. That is, the time information may refer to time point information of the pulse signal in each demodulation channel.
In specific implementation, the frame loss detection system can detect the burst frame signal through the frame synchronization detection module, and synchronously record the time information corresponding to the burst frame signal for each demodulation channel.
Further, the step S302 includes: detecting frame signals in each frequency hopping demodulation channel to obtain burst pulse signals; determining a burst frame signal to be detected according to the burst pulse signal; and detecting the burst frame signal according to the frequency hopping period and obtaining a detection result.
It should be noted that the frame signal may refer to all physical frame signals in the frequency hopping demodulation channel, the burst pulse signal may be a pulse signal extracted from the frame signal, the pulse signal is a discrete signal, has various shapes and a certain periodicity, and the pulse signal may be used for representing information or may be used as a carrier.
It is understood that the burst signal may refer to a pulse signal generated when the frame signal is synchronously detected.
In the specific implementation, when the frame loss detection system performs frame synchronization detection on a frame signal, a certain number of frame synchronization codes are inserted into an information code stream, and the frame synchronization codes can be a group of specific code groups, can also be pulses with specific widths, can be inserted in a centralized manner, and can also be inserted in a dispersed manner. And when the frame signal is synchronously detected, acquiring a waveform corresponding to each pulse.
In this embodiment, the step S40 includes:
step S401: and when detecting the frame signals in each frequency hopping demodulation channel, recording the current time information corresponding to each detected frame signal.
It should be noted that the current time information may be time information corresponding to the burst signal when the frame synchronization detection is performed on the frame signal.
It can be understood that the current time information corresponding to the frame signal may be the time information corresponding to each frame signal in the frequency hopping demodulation channel.
In the specific implementation, the frame loss detection system can record the current time information corresponding to each detected frame signal when detecting the frame signal in each frequency hopping demodulation channel.
Step S402: and converging the recorded current time information, and determining burst frames and time information corresponding to each burst frame according to a convergence result, the detection result and the frequency hopping period.
It should be noted that the time information corresponding to the burst frame may be a pulse signal corresponding to the frame signal
Step S403: and carrying out frequency hopping frame loss detection according to the time information corresponding to each burst frame and a preset time sequence.
It should be noted that the preset time sequence may be according to the sequence of the time information, for example: the time information corresponding to the X1 th frame is 0.01ms, and the time information corresponding to the X2 th frame is 0.02ms, that is, the time information corresponding to the X1 th frame is first sent to the frame loss detection module. The present embodiment does not impose a limitation on the time information.
In the specific implementation, the frame loss detection system performs frequency hopping frame loss detection according to the time information and the preset time sequence corresponding to each burst frame.
In the embodiment, the frequency hopping parameter analysis result of each frequency point is obtained by performing parameter analysis on the acquired frequency hopping signal to be converted; determining a frequency hopping demodulation channel of each frequency point according to the frequency hopping parameter analysis result, detecting a burst frame signal in the frequency hopping demodulation channel, and extracting a frequency hopping period corresponding to the burst frame signal from the frequency hopping parameter analysis result; detecting the burst frame signal according to the frequency hopping period and obtaining a detection result; synchronously recording the time information corresponding to the burst frame signal according to the detection result, and recording the current time information corresponding to each detected frame signal when detecting the frame signal in each frequency hopping demodulation channel; converging the recorded current time information, and determining burst frames and time information corresponding to each burst frame according to a convergence result, the detection result and the frequency hopping period; and carrying out frequency hopping frame loss detection according to the time information corresponding to each burst frame and a preset time sequence. Because the embodiment is based on gathering the result and the frequency hopping parameter analysis result to the burst frame signal and losing the frame detection to the frequency hopping signal, this embodiment discerns the frequency hopping law and in reverse frequency hopping communication system through the frequency hopping pattern for prior art, can't know frequency hopping atlas and frequency hopping pattern change law, this embodiment has realized not needing the synchronous frequency hopping law of discerning of frequency hopping pattern, need not the synchronous frequency hopping pattern, and the design degree of difficulty reduces to make the frame loss detect more swiftly accurate, promote the frame loss statistics high efficiency.
In addition, an embodiment of the present invention further provides a storage medium, where the storage medium stores a frame loss detection program, and the frame loss detection program, when executed by a processor, implements the steps of the frame loss detection method described above.
Referring to fig. 5, fig. 5 is a block diagram illustrating a structure of a frame loss detection apparatus according to a first embodiment of the present invention.
As shown in fig. 5, the frame loss detection apparatus according to the embodiment of the present invention includes:
the parameter analysis module 10 is configured to perform parameter analysis on the acquired frequency hopping signal to be converted to obtain a frequency hopping parameter analysis result of each frequency point;
a channel determining module 20, configured to determine a frequency hopping demodulation channel of each frequency point according to the frequency hopping parameter analysis result;
an information detection module 30, configured to detect a burst frame signal in the frequency hopping demodulation channel, and synchronously record time information corresponding to the burst frame signal according to a detection result;
and the frame loss detection module 40 is configured to aggregate time information corresponding to each frequency hopping demodulation channel, and perform frequency hopping frame loss detection according to an aggregation result and the frequency hopping parameter analysis result.
In the embodiment, the frequency hopping parameter analysis result of each frequency point is obtained by performing parameter analysis on the acquired frequency hopping signal to be converted; determining a frequency hopping demodulation channel of each frequency point according to the frequency hopping parameter analysis result; detecting burst frame signals in the frequency hopping demodulation channel, and synchronously recording time information corresponding to the burst frame signals according to detection results; and converging the time information corresponding to each frequency hopping demodulation channel, and carrying out frequency hopping frame loss detection according to a convergence result and the frequency hopping parameter analysis result. Because the embodiment is based on gathering the result and the frequency hopping parameter analysis result to the burst frame signal and losing the frame detection to the frequency hopping signal, this embodiment discerns the frequency hopping law and in reverse frequency hopping communication system through the frequency hopping pattern for prior art, can't know frequency hopping atlas and frequency hopping pattern change law, this embodiment has realized not needing the synchronous frequency hopping law of discerning of frequency hopping pattern, need not the synchronous frequency hopping pattern, and the design degree of difficulty reduces to make the frame loss detect more swiftly accurate, promote the frame loss statistics high efficiency.
Further, the channel determining module 20 is further configured to determine a frequency hopping time interval and a frequency hopping frequency point number corresponding to each frequency point according to the frequency hopping parameter analysis result; and determining a frequency hopping demodulation channel corresponding to each frequency point according to the frequency hopping time interval and the frequency hopping frequency point number.
Further, the channel determining module 20 is further configured to determine, according to the frequency hopping parameter analysis result, a frequency hopping bandwidth width and a frequency hopping channel width corresponding to the frequency hopping signal to be converted; determining the number of frequency hopping points according to the width of a frequency hopping band and the width of a frequency hopping channel corresponding to the frequency hopping signal to be converted; and determining a frequency hopping demodulation channel corresponding to each frequency point according to the frequency hopping point number and the frequency hopping time interval.
Further, the channel determining module 20 is further configured to determine, according to the number of frequency hopping channels, the number of frequency hopping channels corresponding to each frequency point; and determining a frequency hopping demodulation channel corresponding to each frequency point according to the number of the frequency hopping channels and the frequency hopping time interval.
Further, the information detecting module 30 is further configured to detect a burst frame signal in the frequency hopping demodulation channel, and extract a frequency hopping period corresponding to the burst frame signal from the frequency hopping parameter analysis result; detecting the burst frame signal according to the frequency hopping period and obtaining a detection result; and synchronously recording the time information corresponding to the burst frame signal according to the detection result.
Further, the information detecting module 30 is further configured to detect a frame signal in each frequency hopping demodulation channel to obtain a burst signal; determining a burst frame signal to be detected according to the burst pulse signal; and detecting the burst frame signal according to the frequency hopping period and obtaining a detection result.
Further, the frame loss detection module 40 is further configured to record current time information corresponding to each detected frame signal when detecting the frame signal in each frequency hopping demodulation channel; converging the recorded current time information, and determining burst frames and time information corresponding to each burst frame according to a convergence result, the detection result and the frequency hopping period; and carrying out frequency hopping frame loss detection according to the time information corresponding to each burst frame and a preset time sequence.
Other embodiments or specific implementation manners of the frame loss detection apparatus of the present invention may refer to the above method embodiments, and are not described herein again.
In addition, an embodiment of the present invention further provides a storage medium, where the storage medium stores a frame loss detection program, and the frame loss detection program, when executed by a processor, implements the steps of the frame loss detection method described above.
It should be understood that the above is only an example, and the technical solution of the present invention is not limited in any way, and in a specific application, a person skilled in the art may set the technical solution as needed, and the present invention is not limited thereto.
It should be noted that the above-described work flows are only exemplary, and do not limit the scope of the present invention, and in practical applications, a person skilled in the art may select some or all of them to achieve the purpose of the solution of the embodiment according to actual needs, and the present invention is not limited herein.
In addition, the technical details that are not described in detail in this embodiment may refer to the frame loss detection method provided in any embodiment of the present invention, and are not described herein again.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the words first, second, third, etc. do not denote any order, but rather the words first, second, third, etc. are to be interpreted as names.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention or portions thereof that contribute to the prior art may be embodied in the form of a software product, where the computer software product is stored in a storage medium (e.g., a Read Only Memory (ROM)/Random Access Memory (RAM), a magnetic disk, an optical disk), and includes several instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A frame loss detection method is characterized by comprising the following steps:
carrying out parameter analysis on the acquired frequency hopping signal to be converted to obtain a frequency hopping parameter analysis result of each frequency point;
determining a frequency hopping demodulation channel of each frequency point according to the frequency hopping parameter analysis result;
detecting burst frame signals in the frequency hopping demodulation channel, and synchronously recording time information corresponding to the burst frame signals according to detection results;
and converging the time information corresponding to each frequency hopping demodulation channel, and carrying out frequency hopping frame loss detection according to a convergence result and the frequency hopping parameter analysis result.
2. The frame loss detection method of claim 1, wherein the step of determining the frequency hopping demodulation channel of each frequency point according to the frequency hopping parameter analysis result comprises:
determining the frequency hopping time interval and the frequency hopping frequency point number corresponding to each frequency point according to the frequency hopping parameter analysis result;
and determining a frequency hopping demodulation channel corresponding to each frequency point according to the frequency hopping time interval and the frequency hopping frequency point number.
3. The frame loss detection method of claim 2, wherein the step of determining the frequency hopping demodulation channel corresponding to each frequency point according to the frequency hopping time interval and the number of frequency hopping frequency points comprises:
determining the width of a frequency hopping band and the width of a frequency hopping frequency channel corresponding to the frequency hopping signal to be converted according to the frequency hopping parameter analysis result;
determining the number of frequency hopping points according to the width of a frequency hopping band and the width of a frequency hopping channel corresponding to the frequency hopping signal to be converted;
and determining a frequency hopping demodulation channel corresponding to each frequency point according to the frequency hopping point number and the frequency hopping time interval.
4. The frame loss detection method of claim 3, wherein the step of determining the frequency hopping demodulation channel corresponding to each frequency point according to the number of frequency hopping points and the frequency hopping time interval comprises:
determining the number of frequency hopping channels corresponding to each frequency point according to the number of the frequency hopping channels;
and determining a frequency hopping demodulation channel corresponding to each frequency point according to the number of the frequency hopping channels and the frequency hopping time interval.
5. The frame loss detection method of claim 1, wherein the step of detecting the burst frame signal in the frequency hopping demodulation channel and synchronously recording the time information corresponding to the burst frame signal according to the detection result comprises:
detecting burst frame signals in the frequency hopping demodulation channel, and extracting a frequency hopping period corresponding to the burst frame signals from the frequency hopping parameter analysis result;
detecting the burst frame signal according to the frequency hopping period and obtaining a detection result;
and synchronously recording the time information corresponding to the burst frame signal according to the detection result.
6. The method of claim 5, wherein the step of detecting the burst frame signal according to the hopping period and obtaining the detection result comprises:
detecting frame signals in each frequency hopping demodulation channel to obtain burst pulse signals;
determining a burst frame signal to be detected according to the burst pulse signal;
and detecting the burst frame signal according to the frequency hopping period and obtaining a detection result.
7. The frame loss detection method of claim 6, wherein the step of aggregating the time information corresponding to each frequency hopping demodulation channel and performing frequency hopping frame loss detection according to the aggregation result and the frequency hopping parameter analysis result comprises:
when detecting the frame signals in each frequency hopping demodulation channel, recording the current time information corresponding to each detected frame signal;
converging the recorded current time information, and determining burst frames and time information corresponding to each burst frame according to a convergence result, the detection result and the frequency hopping period;
and carrying out frequency hopping frame loss detection according to the time information corresponding to each burst frame and a preset time sequence.
8. A frame loss detection device, characterized in that the frame loss detection device comprises: memory, processor and a frame loss detection program stored on the memory and executable on the processor, the frame loss detection program when executed by the processor implementing the steps of the frame loss detection method according to any of claims 1 to 7.
9. A storage medium having stored thereon a frame loss detection program which, when executed by a processor, implements the steps of the frame loss detection method according to any one of claims 1 to 7.
10. A frame loss detection apparatus, comprising:
the parameter analysis module is used for carrying out parameter analysis on the acquired frequency hopping signals to be converted to obtain frequency hopping parameter analysis results of each frequency point;
the channel determining module is used for determining the frequency hopping demodulation channel of each frequency point according to the frequency hopping parameter analysis result;
the information detection module is used for detecting the burst frame signal in the frequency hopping demodulation channel and synchronously recording the time information corresponding to the burst frame signal according to the detection result;
and the frame loss detection module is used for converging the time information corresponding to each frequency hopping demodulation channel and carrying out frequency hopping frame loss detection according to a convergence result and the frequency hopping parameter analysis result.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114696922A (en) * | 2022-02-22 | 2022-07-01 | 电子科技大学 | Frequency hopping signal detection method suitable for unmanned aerial vehicle communication |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050049853A1 (en) * | 2003-09-01 | 2005-03-03 | Mi-Suk Lee | Frame loss concealment method and device for VoIP system |
| CN101507124A (en) * | 2006-08-18 | 2009-08-12 | Iti苏格兰有限公司 | Wireless receiver and method of saving power |
| CN103079142A (en) * | 2012-12-21 | 2013-05-01 | 国光电器股份有限公司 | Bass time delay adjusting system and bass time delay adjusting method for wireless subwoofer |
| CN104112363A (en) * | 2014-07-04 | 2014-10-22 | 西安交通大学 | Multi-sensing-data space-time synchronization method and road multi-sensing-data vehicle-mounted acquisition system |
| CN104821837A (en) * | 2015-04-27 | 2015-08-05 | 西安空间无线电技术研究所 | Frequency hopping anti-interference system for MF-TDMA system |
| CN105071832A (en) * | 2015-07-10 | 2015-11-18 | 山东航天电子技术研究所 | High-speed frequency hopping synchronization method which does not rely on external clock reference |
| CN205883231U (en) * | 2016-01-07 | 2017-01-11 | 中国航空无线电电子研究所 | General hardware platform towards large capacity broadband frequency hopping communication |
| CN107612587A (en) * | 2017-06-20 | 2018-01-19 | 西安电子科技大学 | A kind of method for parameter estimation for being used for Frequency Hopping Signal in frequency hopping non-cooperative communication |
| CN110248319A (en) * | 2019-05-06 | 2019-09-17 | 南通大学 | A kind of remote-code-update method towards WSCN node |
-
2021
- 2021-03-17 CN CN202110288377.1A patent/CN113078925B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050049853A1 (en) * | 2003-09-01 | 2005-03-03 | Mi-Suk Lee | Frame loss concealment method and device for VoIP system |
| CN101507124A (en) * | 2006-08-18 | 2009-08-12 | Iti苏格兰有限公司 | Wireless receiver and method of saving power |
| CN103079142A (en) * | 2012-12-21 | 2013-05-01 | 国光电器股份有限公司 | Bass time delay adjusting system and bass time delay adjusting method for wireless subwoofer |
| CN104112363A (en) * | 2014-07-04 | 2014-10-22 | 西安交通大学 | Multi-sensing-data space-time synchronization method and road multi-sensing-data vehicle-mounted acquisition system |
| CN104821837A (en) * | 2015-04-27 | 2015-08-05 | 西安空间无线电技术研究所 | Frequency hopping anti-interference system for MF-TDMA system |
| CN105071832A (en) * | 2015-07-10 | 2015-11-18 | 山东航天电子技术研究所 | High-speed frequency hopping synchronization method which does not rely on external clock reference |
| CN205883231U (en) * | 2016-01-07 | 2017-01-11 | 中国航空无线电电子研究所 | General hardware platform towards large capacity broadband frequency hopping communication |
| CN107612587A (en) * | 2017-06-20 | 2018-01-19 | 西安电子科技大学 | A kind of method for parameter estimation for being used for Frequency Hopping Signal in frequency hopping non-cooperative communication |
| CN110248319A (en) * | 2019-05-06 | 2019-09-17 | 南通大学 | A kind of remote-code-update method towards WSCN node |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114696922A (en) * | 2022-02-22 | 2022-07-01 | 电子科技大学 | Frequency hopping signal detection method suitable for unmanned aerial vehicle communication |
| CN114696922B (en) * | 2022-02-22 | 2023-06-09 | 电子科技大学 | Frequency hopping signal detection method suitable for unmanned aerial vehicle communication |
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