CN116244637B - Burst signal acquisition method and device - Google Patents

Abstract

The present invention provides a burst signal acquisition method and device, belonging to the technical field of signal detection, including: storing signal data in a cache queue, and detecting whether the signal data in each window in the cache queue is burst signal data; According to the detection result corresponding to each window, determine the start window and end window of signal data collection in the window; collect the signal data from the start window to the end window in the buffer queue. The present invention realizes that when the burst signal is detected, the signal data is still in the cache queue by setting the buffer queue and dividing the window, and then realizes the complete and non-destructive detection of the burst signal from the moment of appearance to the moment of disappearance under the condition of unattended collection.

Description

Burst signal acquisition method and device

technical field

The invention relates to the technical field of signal detection, in particular to a burst signal acquisition method and device.

Background technique

Traditional signal acquisition equipment can continuously acquire and record signals of various bandwidths, and the acquisition tolerance only depends on the capacity of the hard disk of the equipment. This collection and recording method is suitable for continuous and stable signal collection, or the collection and recording of environmental signals.

If the acquisition object is short burst signals that appear randomly, this continuous acquisition and recording method will collect a large amount of noise data without target signals, and cannot accurately record effective signals. Ineffective noise data not only takes up valuable data storage space, but also requires a lot of follow-up processing to select data containing burst signals. Therefore, the continuous acquisition and recording method is difficult to apply to the acquisition of short burst signals.

If the burst signal is collected and recorded manually, the collection can only be started when the signal is observed. Since the signal appears suddenly and lasts for a short time, it is difficult to collect a complete burst signal, and it is also difficult to manually collect the burst signal for a long time. Focus on short bursts of signals that occur randomly.

Contents of the invention

The invention provides a method and device for collecting burst signals, which are used to solve the defect that it is difficult to completely collect burst signals in the prior art, and realize the complete collection of burst signals after automatic and accurate identification of burst signals.

The present invention provides a burst signal acquisition method, comprising:

Store the signal data in the buffer queue, and detect whether the signal data in each window in the buffer queue is burst signal data;

According to the detection result corresponding to each window, determine the start window and end window of signal data collection in the window;

Collect signal data from the start window to the end window in the buffer queue.

According to a burst signal acquisition method provided by the present invention, before the step of storing the signal data in the cache queue and detecting whether the signal data in each window in the cache queue is burst signal data, the method further includes:

determining the width of the window according to the sampling rate of the signal data and the preset frequency resolution of the detection of the burst signal data;

The step of the window is determined according to the sampling rate of the signal data and the preset time resolution of the detection of the burst signal data.

According to a burst signal acquisition method provided by the present invention, the step of detecting whether the signal data in each window in the buffer queue is burst signal data includes:

Perform fast Fourier transform and spectrum splicing on the signal data in each window to obtain the spectrum data of the signal data;

Comparing the spectral data corresponding to each window with a first preset threshold, and counting the number of spectral data corresponding to each window greater than the first preset threshold;

If the number of spectrum data is greater than a second preset threshold, it is determined that the signal data in the window is burst signal data.

According to a burst signal acquisition method provided by the present invention, when the number of spectrum data is greater than a second preset threshold, determining that the signal data in the window is burst signal data includes:

extracting the features of the signal data in each window, and matching the features of the signal data with the features of the target burst signal;

When the characteristics of the signal data and the characteristics of the target burst signal are successfully matched, and when the number of the spectrum data is greater than a second preset threshold, determine that the signal data in the window is burst signal data .

According to a burst signal acquisition method provided by the present invention, the step of determining the start window and end window of signal data acquisition in the window according to the detection result corresponding to each window includes:

After the latest collection of the signal data, the first detection result is a window of burst signal data as the initial window of the signal data collection;

In the case that the detection result of the continuous preset number of windows is not burst signal data, the end window of the signal data collection is determined according to the continuous preset number of windows.

According to a kind of burst signal acquisition method provided by the present invention, also comprise:

Determine the sampling duration corresponding to the buffer queue according to the length of the buffer queue and the sampling rate of the signal data;

determining the number of windows corresponding to the buffer queue according to the length of the buffer queue and the step of the window;

Whether the signal data in the window corresponding to the number of windows is detected within the sampling duration is burst signal data.

According to a burst signal acquisition method provided by the present invention, whether the signal data in each window in the cache queue is detected by a graphics processor is burst signal data, so that the detection duration of all windows in the cache queue is less than the specified The above sampling time.

The invention also provides a burst signal acquisition device, including:

A detection module, configured to store signal data in a cache queue, and detect whether the signal data in each window in the cache queue is burst signal data;

A determining module, configured to determine a start window and an end window for signal data collection in the window according to the detection result corresponding to each window;

A collection module, configured to collect signal data from the start window to the end window in the buffer queue.

The present invention also provides an electronic device, including a memory, a processor, and a computer program stored on the memory and operable on the processor. When the processor executes the program, it realizes any of the burst signals described above. collection method.

The present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, any one of the burst signal acquisition methods described above can be realized.

A burst signal acquisition method and device provided by the present invention, by inputting the signal data into the cache queue, setting multiple windows in the cache queue to quickly complete the detection of the signal data in each window, improving the speed of signal data detection , and when a burst signal is detected, the burst signal data temporarily stored in the buffer queue is completely collected from the start window to the end window; when the burst signal is detected, the signal data is still in the buffer queue, and then in Under unattended conditions, the complete and non-destructive collection of burst signals from the moment of appearance to the moment of disappearance is realized.

Description of drawings

In order to more clearly illustrate the present invention or the technical solutions in the prior art, the accompanying drawings that need to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings in the following description are the present invention. For some embodiments of the invention, those skilled in the art can also obtain other drawings based on these drawings without creative effort.

Fig. 1 is the schematic flow chart of the burst signal acquisition method provided by the present invention;

Fig. 2 is the schematic diagram of cache queue and window in the burst signal acquisition method provided by the present invention;

Fig. 3 is the flow chart of detecting the signal data in each window in the buffer queue in the burst signal acquisition method provided by the present invention;

Fig. 4 is a schematic structural diagram of a burst signal acquisition device provided by the present invention;

Fig. 5 is a schematic structural diagram of an electronic device provided by the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

A kind of burst signal acquisition method of the present invention is described below in conjunction with Fig. 1-Fig. 3, comprises:

Step 101, storing signal data in a buffer queue, and detecting whether the signal data in each window in the buffer queue is burst signal data;

Before inputting the signal data into the buffer queue, analog-to-digital conversion is performed on the signal data, and the analog signal is converted into a digital signal.

Burst signal detection and data recording are inseparable. In order to realize burst signal detection and signal acquisition at the same time, the data buffer queue is set in advance, and multiple windows are divided to detect whether the signal data is burst in each window. signal data.

This embodiment does not limit the type of the window.

Optionally, the window may be a scrolling window. Specifically, the cache queue is evenly divided into multiple windows, each window does not overlap with each other and there is no interval between two adjacent windows. The signal data in each window is detected in the buffer queue, and whether the signal data in each window is burst signal data is determined.

Optionally, the window may be a sliding window. Specifically, divide the buffer queue into multiple windows of the same size at a fixed step, detect the signal data in each window in the buffer queue, and determine whether the signal data in each window is a burst signal data.

Wherein, each window needs to be able to accommodate at least one complete signal acquisition data.

This embodiment does not limit the size of the cache queue. In a feasible implementation manner, the signal data sampled within 1 second is input into the cache queue.

Optionally, there may be one or more cache queues.

When there is one buffer queue, after the detection of signal data in all windows is completed, the next set of signal data enters the buffer queue to avoid loss of signal data.

When there are multiple buffer queues, parallel processing technology can be used to detect signal data in each window to realize the cycle of data flow, so that signal data can continuously enter the buffer queue and improve the efficiency of signal acquisition.

The parallel processing technology may be ping-pong buffer (ping-pong buffer).

The detection method in this embodiment may be Fourier transform, fast Fourier transform, energy detection, etc., and the method of signal data detection is not limited in this embodiment.

Step 102, according to the detection results corresponding to each window, determine the start window and end window of signal data collection in the window;

All windows from the start window to the end window record together to complete a complete burst signal.

In the cache queue, the first window in which a burst signal is detected is the start window of data collection.

Optionally, the end window is located after the burst signal occurs and after the window in which the burst signal is not detected for the first time, so as to increase the integrity of burst signal recording.

Step 103, collect signal data from the start window to the end window in the buffer queue.

The signal data from the start window to the end window in the buffer queue together constitute a completed burst signal data.

Optionally, when the next set of signal data enters the buffer queue after the detection of signal data in all windows is completed, the burst signal in the buffer queue is collected after the detection of signal data in all windows in the buffer queue is completed data.

Optionally, when the detection of the signal data in the window is performed in parallel with the collection of the detected burst signal data, for the window in which the burst signal is detected, the bursts in the buffer queue are collected in the order in which the detection of the window is completed. Signaling data.

The invention first detects the burst signal and starts data collection; then detects the disappearance of the signal in real time during the collection process, and stops the collection after confirming that the signal disappears. The signal data is continuously input into the buffer queue, and the acquisition strategy is determined while detecting, until the entire signal data is processed.

The burst signal acquisition method of the present invention inputs the signal data into the cache queue, and quickly completes the detection of the signal data in each window by setting a plurality of windows in the cache queue, thereby improving the speed of signal data detection, and detecting the burst In the case of a signal, the burst signal data temporarily stored in the buffer queue is completely collected from the start window to the end window; since the signal data is still in the buffer queue when the burst signal is detected, it can be realized in an unattended condition It realizes the lossless collection of signal data when the burst signal occurs.

In a burst signal acquisition method of the present invention, before the step of storing the signal data in the cache queue and detecting whether the signal data in each window in the cache queue is burst signal data, it also includes:

Optionally, the sampling rate S of the signal data is determined according to the bandwidth of the signal data. Typically, the sampling rate S is higher than twice the bandwidth of the signal data to avoid aliasing.

Further, the number of sampling points in the cache queue is determined by the sampling rate. Specifically, the number L of sampling points in the buffer queue can be calculated by multiplying the sampling rate S by the sampling time T.

determining the width of the window according to the sampling rate of the signal data and the preset frequency resolution of the detection of the burst signal data;

The preset frequency resolution is preset according to the characteristics of the signal data itself.

Optionally, the preset frequency resolution Δf=S/L. The preset frequency resolution Δf is determined by selecting an appropriate sampling rate S and the number of sampling points L, so as to ensure that the frequency characteristics of the signal can be accurately analyzed under the preset frequency resolution, and the waste of computing resources is reduced.

As shown in FIG. 2, the width N of the window is the number of sampling points contained in the window, and is also the number of sampling points used in each detection.

The width of the window is determined by the sampling rate of the signal data and the preset frequency resolution of the burst signal data detection. Specifically, the width of the window N=S/Δf.

Determine the appropriate window width by determining the appropriate preset frequency resolution, so as to ensure that the size of the window enables at least one complete signal sampling, and does not cause data detection in each window due to too much signal sampling data contained The amount of calculation is too large.

The step of the window is determined according to the sampling rate of the signal data and the preset time resolution of the detection of the burst signal data.

The preset time resolution Δt is able to detect the burst signal whose burst duration is greater than or equal to Δt, that is, the preset time resolution Δt is less than or equal to the burst duration that can detect the burst signal.

In order to prevent the signal data in the buffer queue from being divided into two adjacent windows and cause missed detection, the window in this embodiment is a sliding window. Since the step of the sliding window is too large, smaller signal data will be missed, and the step of the window needs to be determined by the sampling rate and the preset time resolution.

In this embodiment, the window step Δn=Δt×S.

The burst signal acquisition method of the present invention sets a sliding window and selects a reasonable window step, so that the burst signal can be completely detected by one window, reduces the omission of burst signal identification, and completely records the randomly occurring short burst signal from its appearance The process of disappearing, thereby improving the integrity of burst signal recording.

In a burst signal acquisition method of the present invention, the step of detecting whether the signal data in each window in the buffer queue is burst signal data includes:

Perform fast Fourier transform and spectrum splicing on the signal data in each window to obtain the spectrum data of the signal data;

In this embodiment, a flow chart of detecting whether the signal data in each window in the cache queue is burst signal data is shown in FIG. 3 .

The signal data in each window is operated by fast Fourier transform, and the signal data is converted from the time domain to the frequency domain.

Then perform the following data transformation and spectrum splicing on the operation results of the fast Fourier transform, so as to obtain the complete spectrum of the signal data in the window:

Record the result after FFT operation as , where N is the window width.

Record the spectrum result data as , after the spectrum stitching is completed through the inversion operation:

.

After the spectrum splicing is realized through the above method, the spectrum data of a complete signal data in the window can be obtained.

Comparing the spectral data corresponding to each window with a first preset threshold, and counting the number of spectral data corresponding to each window greater than the first preset threshold;

The size of the first preset threshold is determined based on experience.

Optionally, the first preset threshold may be a signal detection threshold. For the signal data in each window, these data are compared with the signal detection threshold one by one, and the number of spectrum data exceeding the signal detection threshold is counted.

Optionally, the first preset threshold may be a signal detection peak value. For the signal data in each window, these signal data are compared with the signal detection peak value one by one, and the number of frequency spectrum data whose signal peak value exceeds the first preset threshold is counted.

If the number of spectrum data is greater than a second preset threshold, it is determined that the signal data in the window is burst signal data.

The second preset threshold is determined based on experience. When the number of spectrum data is greater than the second preset threshold, that is, signals are detected continuously, the signal data in the window is determined to be burst signal data, so as to avoid the influence of noise or unstable signals on signal detection.

In this embodiment, there is no limitation on the continuity of the number of spectrum data.

For example, each window contains 1000 samples, when the second preset threshold is 10, if the spectral data of 12 samples in each window is greater than the first preset threshold, that is, the number of spectral data in the window is greater than The second preset threshold, at this time, it is determined that the signal data within the window is burst signal data.

A burst signal acquisition method of the present invention compares the spectrum data of multiple sample points in each window with the first preset threshold, and when the number of spectrum data exceeding the first preset threshold is greater than the second preset threshold Under this condition, the influence of noise and unstable signals on the detection results is eliminated, and burst signals appear in the determined window, which improves the accuracy of burst signal identification, reduces the collection of invalid noise data, and has universal applicability.

In a burst signal acquisition method of the present invention, in the case where the number of spectrum data is greater than a second preset threshold, determining that the signal data in the window is burst signal data includes:

extracting the features of the signal data in each window, and matching the features of the signal data with the features of the target burst signal;

The target burst signal is the burst signal expected to be collected. The signal feature may be a proprietary feature determined based on the target burst signal.

Optionally, the features of the signal data may include one or more of time-domain features, frequency-domain features, statistical features, time-frequency features, and nonlinear features of the signal.

Among them, the time-domain characteristics of the signal describe the change law of the signal in time, including the amplitude, phase, frequency and period of the signal.

The frequency domain characteristics of a signal describe the distribution of the signal in the frequency domain, including the frequency, bandwidth, and spectral shape of the signal.

The statistical characteristics of the signal describe the probability distribution of the signal, including the mean value, variance and probability density function of the signal.

The time-frequency characteristics of the signal describe the variation law of the signal in the time domain and frequency domain, including the instantaneous frequency, instantaneous amplitude and instantaneous phase of the signal.

The nonlinear characteristics of the signal describe the nonlinear characteristics of the signal, including the chaotic value, self-similarity and adaptability of the signal.

Different signals have different characteristics. By flexibly setting the characteristics of the signal data, it is matched with the characteristics of the target burst signal, and then the detected burst signal is screened.

When the characteristics of the signal data and the characteristics of the target burst signal are successfully matched, and when the number of the spectrum data is greater than a second preset threshold, determine that the signal data in the window is burst signal data .

Optionally, when the similarity between the feature of the signal data and the feature of the target burst signal exceeds the third preset threshold, it is determined that the feature of the signal data matches the feature of the target burst signal successfully, and the type of the burst signal is similar to the target burst signal. Signaling is of the same kind. Wherein, the third preset threshold is set through experience.

On this basis, when the number of frequency spectrum data of the signal data whose features are successfully matched is greater than the second preset threshold, it is determined that the signal data within the window is burst signal data expected to be collected.

The outstanding signal acquisition method of the present invention matches the signal data in the window according to the characteristics of the target burst signal, and screens out the burst signal data whose signal type is the same as the target burst signal, so as to realize the directional detection and precise matching of the burst signal , to avoid the storage and processing of invalid data as much as possible, save data storage space, and greatly improve the efficiency of signal acquisition.

In a burst signal acquisition method of the present invention, the step of determining the start window and end window of signal data acquisition in the window according to the detection result corresponding to each window includes:

After the latest collection of the signal data, the first detection result is a window of burst signal data as the initial window of the signal data collection;

That is to say, when the detection result of the signal data in the existing window is image signal data, the signal data acquisition work is started, and the burst signal is continuously collected from the first window in which the detection result is burst signal data.

In the case that the detection result of the continuous preset number of windows is not burst signal data, the end window of the signal data collection is determined according to the continuous preset number of windows.

The number of consecutive presets is determined based on experience.

In a feasible implementation, the window in which the burst signal is detected is marked as 1, and the window in which the burst signal is not detected is marked as 0. If the signal disappears, this signal acquisition can be terminated.

Optionally, when the signal data can continue to enter the buffer queue, after a preset number of consecutive windows are marked as 0, the last window marked as 0 is used as the end window.

Optionally, when the next set of signal data enters the buffer queue after the detection of signal data in all windows is completed, after a preset number of consecutive windows are marked as 0, the penultimate one is marked as 0 window as the end window.

The burst signal collection method of the present invention determines the end window of data collection according to the continuous preset number of detection results not being the burst signal data window, thereby reducing the impact of signal incoherence caused by signal fluctuations on burst signal collection as much as possible , can accurately detect the moment when the burst signal disappears and stop data recording, and collect the burst signal more completely.

In a kind of burst signal acquisition method of the present invention, also comprise:

Determine the sampling duration corresponding to the buffer queue according to the length of the buffer queue and the sampling rate of the signal data;

The sampling duration is the time when the sampled signal data fills a buffer queue, and the sampling duration is equal to the length L of the buffer queue divided by the sampling rate S.

determining the number of windows corresponding to the buffer queue according to the length of the buffer queue and the step of the window;

The number of windows corresponding to the cache queue is the number of data frames that each cache queue needs to complete signal detection, specifically L/Δn=L/(Δt×S).

Whether the signal data in the window corresponding to the number of windows is detected within the sampling duration is burst signal data.

In the case that the signal data can continue to enter the buffer queue, in order to realize the real-time detection and lossless acquisition of burst signals, it is necessary to complete the detection of the signal data of all windows within the sampling time corresponding to the buffer queue to avoid burst signals The data is overwritten by subsequent incoming signal data before the detection is completed, resulting in incomplete collection of burst signals.

That is to say, the detection of L/(Δt×S) data frames needs to be completed within the time of L/S.

In the burst signal collection method of the present invention, by determining the maximum detection duration of each window, it is ensured that the detection and collection of signal data in all windows are completed before the data in the cache queue is overwritten, and an accurate and efficient burst signal is achieved at the same time It detects and identifies and records burst signal data, and ensures the integrity of burst signal acquisition, realizing an integrated solution for signal detection and data acquisition.

In a burst signal acquisition method of the present invention, the step of detecting whether the signal data in each window in the buffer queue is burst signal data includes:

The graphics processor detects whether the signal data in each window in the buffer queue is burst signal data, so that the detection duration of all windows in the buffer queue is shorter than the sampling duration.

In order to meet the computing power requirements of the Fast Fourier algorithm and realize that the detection duration of each window is less than the maximum detection duration corresponding to each window, in a feasible implementation, the burst data detection is transplanted to the graphics processor Complete the parallel operation to realize that the detection duration of all windows in the cache queue is less than the sampling duration.

Specifically, after the signal data is collected, a fast Fourier operation is performed on the signal data in the graphics processor, data transformation and spectrum splicing are performed on the result of the fast Fourier operation, and a start window and an end window are determined.

The burst signal acquisition method of the present invention meets the requirement of time resolution by detecting whether the signal data in each window in the buffer queue is burst signal data in the graphics processor, so that the signal detection operation rate exceeds the data sampling rate.

The burst signal acquisition device provided by the present invention is described below, and the burst signal acquisition device described below and the burst signal acquisition method described above can be referred to in correspondence.

As shown in Figure 4, the device includes a detection module 401, a determination module 402 and an acquisition module 403, wherein:

A detection module 401, configured to store signal data in a cache queue, and detect whether the signal data in each window in the cache queue is burst signal data;

Burst signal detection and data recording are inseparable. In order to realize burst signal detection and signal acquisition at the same time, the data buffer queue is set in advance, and multiple windows are divided to detect whether the signal data is burst in each window. signal data.

This embodiment does not limit the type of the window.

Optionally, the window may be a scrolling window. Specifically, the cache queue is evenly divided into multiple windows, each window does not overlap with each other and there is no interval between two adjacent windows. The signal data in each window is detected in the buffer queue, and whether the signal data in each window is burst signal data is determined.

Optionally, the window may be a sliding window. Specifically, divide the buffer queue into multiple windows of the same size at a fixed step, detect the signal data in each window in the buffer queue, and determine whether the signal data in each window is a burst signal data.

Wherein, each window needs to be able to accommodate at least one complete signal acquisition data.

This embodiment does not limit the size of the cache queue. In a feasible implementation manner, the signal data sampled within 1 second is input into the cache queue.

Optionally, there may be one or more cache queues.

When there is one buffer queue, after the detection of signal data in all windows is completed, the next set of signal data enters the buffer queue to avoid loss of signal data.

When there are multiple buffer queues, parallel processing technology can be used to detect signal data in each window to realize the cycle of data flow, so that signal data can continuously enter the buffer queue and improve the efficiency of signal acquisition.

The parallel processing technology may be ping-pong buffer (ping-pong buffer).

The detection method in this embodiment may be Fourier transform, fast Fourier transform, energy detection, etc., and the method of signal data detection is not limited in this embodiment.

A determination module 402, configured to determine a start window and an end window for signal data collection in the window according to the detection result corresponding to each window;

All windows from the start window to the end window record together to complete a complete burst signal.

In the cache queue, the first window in which a burst signal is detected is the start window of data acquisition.

Optionally, the end window is located after the burst signal occurs and after the window in which the burst signal is not detected for the first time, so as to increase the integrity of burst signal recording.

The collection module 403 is configured to collect signal data from the start window to the end window in the buffer queue.

The signal data from the start window to the end window in the buffer queue together constitute a completed burst signal data.

Optionally, when the next set of signal data enters the buffer queue after the detection of signal data in all windows is completed, the burst signal in the buffer queue is collected after the detection of signal data in all windows in the buffer queue is completed data.

Optionally, when the detection of the signal data in the window is performed in parallel with the collection of the detected burst signal data, for the window in which the burst signal is detected, the bursts in the buffer queue are collected in the order in which the detection of the window is completed. Signaling data.

The invention first detects the burst signal and starts data collection; then detects the disappearance of the signal in real time during the collection process, and stops the collection after confirming that the signal disappears. The signal data is continuously input into the buffer queue, and the acquisition strategy is determined while detecting, until the entire signal data is processed.

The burst signal acquisition method of the present invention inputs the signal data into the cache queue, and quickly completes the detection of the signal data in each window by setting a plurality of windows in the cache queue, thereby improving the speed of signal data detection, and detecting the burst In the case of a signal, the burst signal data temporarily stored in the buffer queue is completely collected from the start window to the end window; since the signal data is still in the buffer queue when the burst signal is detected, it can be realized in an unattended condition It realizes the lossless collection of signal data when the burst signal occurs.

FIG. 5 illustrates a schematic diagram of the physical structure of an electronic device. As shown in FIG. 5, the electronic device may include: a processor (processor) 510, a communication interface (Communications Interface) 520, a memory (memory) 530 and a communication bus 540, Wherein, the processor 510 , the communication interface 520 , and the memory 530 communicate with each other through the communication bus 540 . The processor 510 can call the logic instructions in the memory 530 to execute the burst signal acquisition method. The method includes: storing the signal data in the cache queue, and detecting whether the signal data in each window in the cache queue is burst Signal data; according to the detection results corresponding to each window, determine the start window and end window of signal data collection in the window; collect the signal data from the start window to the end window in the buffer queue.

In addition, the above logic instructions in the memory 530 may be implemented in the form of software function units and be stored in a computer-readable storage medium when sold or used as an independent product. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk, and other media that can store program codes. .

In yet another aspect, the present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, it is implemented to perform the burst signal acquisition method provided by the above-mentioned methods, the method Including: storing signal data in a buffer queue, detecting whether the signal data in each window in the buffer queue is burst signal data; determining the starting point of signal data acquisition in the window according to the detection result corresponding to each window start window and end window; collect signal data from the start window to the end window in the buffer queue.

The device embodiments described above are only illustrative, and the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in One place, or it can be distributed to multiple network elements. Part or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. It can be understood and implemented by those skilled in the art without any creative effort.

Through the above description of the implementations, those skilled in the art can clearly understand that each implementation can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware. Based on this understanding, the essence of the above technical solution or the part that contributes to the prior art can be embodied in the form of software products, and the computer software products can be stored in computer-readable storage media, such as ROM/RAM, magnetic Disks, CDs, etc., including several instructions to make a computer device (which may be a personal computer, server, or network device, etc.) execute the methods described in various embodiments or some parts of the embodiments.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (9)

1. The burst signal acquisition method is characterized by comprising the following steps:

storing signal data into a buffer queue, and detecting whether the signal data in each window in the buffer queue is burst signal data or not;

determining a start window and an end window of signal data acquisition in each window according to a detection result corresponding to each window;

collecting signal data from a start window to an end window in the buffer queue;

before the step of storing the signal data into the buffer queue and detecting whether the signal data in each window in the buffer queue is burst signal data, the method further comprises:

determining the width of the window according to the sampling rate of the signal data and the preset frequency resolution of the burst signal data detection;

determining the step of the window according to the sampling rate of the signal data and the preset time resolution of the burst signal data detection;

wherein the number of the cache queues is multiple.

2. The burst signal acquisition method as claimed in claim 1, wherein the step of detecting whether the signal data in each window in the buffer queue is burst signal data comprises:

performing fast Fourier transform and spectrum splicing on the signal data in each window to obtain spectrum data of the signal data;

comparing each spectrum data corresponding to each window with a first preset threshold value, and counting the number of spectrum data which is larger than the first preset threshold value and corresponds to each window;

and under the condition that the number of the frequency spectrum data is larger than a second preset threshold value, determining the signal data in the window as burst signal data.

3. The method for collecting burst signals according to claim 2, wherein determining that the signal data in the window is burst signal data when the number of the spectrum data is greater than a second preset threshold value comprises:

extracting the characteristics of the signal data in each window, and matching the characteristics of the signal data with the characteristics of the target burst signal;

and under the condition that the characteristics of the signal data and the characteristics of the target burst signal are successfully matched and the number of the frequency spectrum data is larger than a second preset threshold value, determining the signal data in the window as burst signal data.

4. A burst signal acquisition method as claimed in any one of claims 1 to 3, wherein the step of determining a start window and an end window of signal data acquisition in the windows according to the detection result corresponding to each window comprises:

after the signal data is acquired last time, taking a window with a first detection result being burst signal data as a starting window for the signal data acquisition;

and under the condition that the detection result of the windows with the continuous preset number is not burst signal data, determining an ending window of signal data acquisition according to the windows with the continuous preset number.

5. A burst signal acquisition method according to any one of claims 1-3, further comprising:

determining the sampling time length corresponding to the buffer queue according to the length of the buffer queue and the sampling rate of the signal data;

determining the number of windows corresponding to the cache queue according to the length of the cache queue and the steps of the windows;

and detecting whether the signal data in the window corresponding to the number of the windows is burst signal data or not in the sampling time length.

6. The burst signal acquisition method as claimed in claim 5, wherein the step of detecting whether the signal data in each window in the buffer queue is burst signal data comprises:

and detecting whether the signal data in each window in the buffer queue is burst signal data or not through a graphic processor, so that the detection duration of all windows in the buffer queue is smaller than the sampling duration.

7. A burst signal acquisition device, comprising:

the detection module is used for storing the signal data into a buffer queue and detecting whether the signal data in each window in the buffer queue is burst signal data or not;

the determining module is used for determining a starting window and an ending window of signal data acquisition in each window according to the detection result corresponding to each window;

the acquisition module is used for acquiring signal data from a start window to an end window in the buffer queue;

the device also comprises a selection module, a control module and a control module, wherein the selection module is used for determining the width of the window according to the sampling rate of the signal data and the preset frequency resolution of the burst signal data detection;

determining the step of the window according to the sampling rate of the signal data and the preset time resolution of the burst signal data detection;

wherein the number of the cache queues is multiple.

8. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the burst signal acquisition method according to any one of claims 1 to 6 when the program is executed by the processor.

9. A non-transitory computer readable storage medium having stored thereon a computer program, which when executed by a processor implements the burst signal acquisition method according to any one of claims 1 to 6.