CN109507645A - A kind of extracting method and device of pulse descriptive word - Google Patents
A kind of extracting method and device of pulse descriptive word Download PDFInfo
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- CN109507645A CN109507645A CN201811083978.3A CN201811083978A CN109507645A CN 109507645 A CN109507645 A CN 109507645A CN 201811083978 A CN201811083978 A CN 201811083978A CN 109507645 A CN109507645 A CN 109507645A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/28—Details of pulse systems
- G01S7/285—Receivers
- G01S7/292—Extracting wanted echo-signals
- G01S7/2923—Extracting wanted echo-signals based on data belonging to a number of consecutive radar periods
- G01S7/2927—Extracting wanted echo-signals based on data belonging to a number of consecutive radar periods by deriving and controlling a threshold value
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Abstract
The embodiment of the present invention provides the extracting method and device of a kind of pulse descriptive word, this method comprises: obtaining base band signal information, and the base band signal information is subjected to the processing of the envelope detection based on sliding window, obtain the corresponding baseband signal envelope information of the base band signal information；The base band signal information is subjected to bottom estimation processing of making an uproar, obtains bottom estimation information of making an uproar corresponding to the base band signal information；Estimate that information and the baseband signal envelope information determine the first threshold information and the second threshold information according to the bottom of making an uproar；Pulse signature messages are determined according to baseband signal envelope information, the first threshold information and the second threshold information；Pulse descriptive word is extracted according to pulse signature messages, the first threshold information and the second threshold information.The present invention is implemented by the way that base-band information is carried out envelope detection processing and handles to obtain the bottom of making an uproar of the baseband signal by bottom estimation of making an uproar, thus according to the baseband signal extract real-time pulse descriptive word after make an uproar bottom and the optimization of baseband signal.
Description
Technical field
The present embodiments relate to the extracting methods and device of field of communication technology more particularly to a kind of pulse descriptive word.
Background technique
Electronics investigation occupies very important status in modern electronic warfare, in hyundai electronics war, generally requires to lead to
It crosses electronics investigation and quickly and effectively obtains enemy intelligence, and the major way of electronics investigation at present is to extract pulse descriptive word.
In the prior art, extracting pulse descriptive word is usually to handle in frequency domain, but handle in frequency domain it is difficult to ensure that in real time
Property, and the quasi- rate in side of other modes for extracting pulse descriptive word is not enough to reach requirement, therefore how real-time and accurately to extract
Pulse descriptive word has become current industry urgent problem to be solved.
Summary of the invention
The embodiment of the present invention provides the extracting method and device of a kind of pulse descriptive word, for solving the above problems or at least
Part solves the problems mentioned above in the background art.
In a first aspect, the embodiment of the present invention provides a kind of extracting method of pulse descriptive word, comprising:
Base band signal information is obtained, and the base band signal information is subjected to the processing of the envelope detection based on sliding window, is obtained
The corresponding baseband signal envelope information of the base band signal information；
The base band signal information make an uproar bottom estimation processing, the bottom that obtains making an uproar corresponding to the base band signal information is estimated
Calculate information；
Estimate that information and the baseband signal envelope information determine the first threshold information and the second thresholding according to the bottom of making an uproar
Information；
Determine that pulse is believed according to the baseband signal envelope information, first threshold information and second threshold information
Number information；
Pulse description is extracted according to the pulse signature messages, first threshold information and second threshold information
Word.
Second aspect, the embodiment of the present invention provide a kind of extraction element of pulse descriptive word, comprising:
Detection module carries out the envelope based on sliding window for obtaining base band signal information, and by the base band signal information
Detection processing, obtains the corresponding baseband signal envelope information of the base band signal information；
Estimation block obtains the base band signal information for the base band signal information to be carried out bottom estimation processing of making an uproar
Corresponding bottom estimation information of making an uproar；
Analysis module estimates that information and the baseband signal envelope information determine that the first thresholding is believed for bottom of making an uproar according to
Breath and the second threshold information；
Confirmation module, for determining pulse signature messages according to first threshold information and second threshold information；
Extraction module, for according to the pulse signature messages, first threshold information and second threshold information
Extract pulse descriptive word.
The third aspect, the embodiment of the present invention provides a kind of electronic equipment, including memory, processor and is stored in memory
Computer program that is upper and can running on a processor, the processor realize arteries and veins as described in relation to the first aspect when executing described program
Rush the extracting method of describing word.
Fourth aspect, the embodiment of the present invention provide a kind of non-transient computer readable storage medium, are stored thereon with calculating
Machine program realizes the step of the extracting method of pulse descriptive word as described in relation to the first aspect when the computer program is executed by processor
Suddenly.
The embodiment of the present invention provides the extracting method and device of a kind of pulse descriptive word, by by base band signal information when
The envelope detection based on sliding window is carried out in domain to handle to obtain signal more preferably base band signal information, it should the detection process based on sliding window
Calculation amount is small, short processing time, so that the extract real-time for pulse descriptive word may be implemented in the follow-up process, and to base
Band signal information make an uproar after bottom estimation processing, can be in conjunction with the threshold information of base band signal information adjust automatically, thus real
Referring now to the extract real-time of pulse descriptive word.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the flow diagram of the extracting method for the pulse descriptive word that one embodiment of the invention provides；
Fig. 2 is the extraction element structural schematic diagram for the pulse descriptive word that one embodiment of the invention provides；
Fig. 3 is the structural schematic diagram for a kind of electronic equipment that one embodiment of the invention provides.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Fig. 1 is the flow diagram of the extracting method for the pulse descriptive word that one embodiment of the invention provides；, as shown in Figure 1,
Include:
S1 obtains base band signal information, and the base band signal information is carried out the processing of the envelope detection based on sliding window, obtains
To the corresponding baseband signal envelope information of the base band signal information；
The base band signal information is carried out bottom estimation processing of making an uproar, obtains making an uproar corresponding to the base band signal information by S2
Estimate information in bottom；
S3 estimates that information and the baseband signal envelope information determine the first threshold information and second according to the bottom of making an uproar
Limit information；
S4 determines pulse signature messages according to first threshold information and second threshold information；
S5 extracts pulse according to the pulse signature messages, first threshold information and second threshold information and retouches
State word.
S1 is also possible to communicate specifically, base band signal information described herein can be radar pulse signal information
Pulse signature messages；Before obtaining the base band signal information, it is filtered.
Sliding window described herein refers to by limiting the received peak signal information of energy in each window, to business
Amount is controlled, and default sliding window window slides in preset time series, and the default sliding window window is in the process of sliding
In, one time series of every sliding, the front end of the default sliding window window has a new signal message and enters, this is default at this time
The rear end of sliding window window can remove the signal message in a Geju City.
Envelope detection processing based on sliding window specifically refers to, and during the treatment, one time series of every sliding, this is pre-
Enter if the front end of sliding window window has a new signal message, the rear end of the default sliding window window can remove a Geju City at this time
Signal message so that the signal message of predetermined number can be kept in default sliding window window always.
For example, the fixed width of default sliding window window is L, which can intercept L base band signal information
Data；The square value of L base band signal information data is calculated separately, and the square value is added, obtains the base of first time sliding window
Band signal information accumulation numerical value；After this is preset one time series of sliding window window sliding, which has one
New signal message enters, and calculates the square value of the signal message data of this new entrance, then subtracts in first time sliding window the
The square value of one signal message data, to obtain the accumulation numerical value of the signal message of second of sliding window；It repeats the above steps,
It is handled until completing entire base band signal information based on the envelope detection of sliding window.Therefore the envelope detection processing based on sliding window is carried out
So that every accumulation numerical value for calculating a new base band signal information, it is only necessary to carry out calculation processing twice, during processing
Calculation amount it is small, short processing time, to realize the extract real-time for pulse descriptive word in the follow-up process.
And the signal message constantly updated with default sliding window window has correlation each other, and with default sliding window window
Mouthful and the noise constantly updated does not have a correlation each other, therefore the processing is so that noise and signal message energy in the time domain
It distinguishes well, when default sliding window window sliding is to noise range, the accumulation numerical value very little of signal message；And it is slided when default
During window window sliding to signaling zone, signal message can be accumulated rapidly, therefore the accumulation numerical value meeting of signal message at this time
It increases rapidly；And when default sliding window window is slid completely into signaling zone, the accumulation numerical value of signal message no longer changes substantially；And work as
When default sliding window window is skidded off from signaling zone, the accumulation numerical value of signal message can be gradually become smaller at this time, until default sliding window window
It fully slides out signaling zone and enters noise range, at this time the accumulation numerical value very little of signal message；In summary, it can be appreciated that letter
Change curve of the accumulation numerical value of number information during default sliding window window sliding be one trapezoidal, at this time signal message
Accumulating numerical value change curve is exactly the corresponding baseband signal envelope information of base band signal information.
S2 specifically, carry out herein make an uproar bottom estimation processing the step of refer to, take all signal amplitudes in base band signal information
Arithmetic mean be the first average value, then as expected false-alarm probability obtains false-alarm threshold value, by the first average value and
False-alarm threshold value is multiplied, and obtains the first detection threshold value；It will be less than the base band signal information mark of the first detection threshold value at this time
It is denoted as the second baseband-detection information；Base band signal information more than the first detection threshold value is believed labeled as the first baseband-detection
Breath.
Take all signal amplitudes in the second baseband-detection information arithmetic mean be the second average value, by the second average value with
False-alarm threshold value is multiplied, and obtains the second detection threshold value,
The second baseband-detection information more than the second detection threshold value is integrated into the first baseband-detection information, obtains
Three baseband-detection information will the second detection threshold value at this time if third baseband-detection information is identical as the first baseband-detection information
To make an uproar, information is estimated at bottom.
Then S3 takes the baseband signal envelope information specifically, using the bottom estimation information of making an uproar as the first threshold information
Maximum value is that the first envelope information obtains difference data after subtracting the first threshold information with the first envelope information, by the difference number
After being multiplied with threshold coefficient information, the second threshold information is obtained.
S4 specifically, signal amplitude in the baseband signal envelope information is successively compared with the first threshold information, when
When there are multiple adjacent signals amplitudes more than the first threshold information, the adjacent signals that amplitude is more than the first threshold information are marked
For a cluster；The maximum value of signal amplitude in the cluster is compared with the second threshold information, if signal amplitude is most in the cluster
Big value is greater than the second threshold information, then the cluster mark is determined as pulse signature messages.
S5 is specifically, pulse descriptive word described in it specifically refers to describe signal physical features within a pulse signal
Parameter, including impulse amplitude, pulse width and pulse arrival time；Therefore extracting pulse descriptive word is actually according to arteries and veins
It rushes signal message, first threshold information and second threshold information and determines that impulse amplitude, pulse width and pulse reach
Time completes the operation for extracting pulse descriptive word at this time.
After completing to extract pulse descriptive word, the embodiment of the invention also includes by pulse arrival time, impulse amplitude and arteries and veins
It rushes width and successively integrates output according to pulse serial number.
The embodiment of the present invention handles to obtain by the way that base band signal information to be carried out to the envelope detection based on sliding window in the time domain
Signal more preferably base band signal information, the detection process calculation amount based on sliding window is small, short processing time, so that in subsequent process
In may be implemented extract real-time for pulse descriptive word, can and after the bottom estimation processing that carries out making an uproar to base band signal information
To combine the threshold information of base band signal information adjust automatically, to realize the extract real-time for pulse descriptive word.
On the basis of the above embodiments, described that the base band signal information is subjected to bottom estimation processing of making an uproar, it obtains described
It the step of bottom estimation information of making an uproar corresponding to base band signal information, specifically includes:
The first detection threshold value is determined according to signal amplitudes all in the base band signal information and false-alarm probability；
Signal amplitude is labeled as the first baseband-detection information beyond the base band signal information of the first detection threshold value, it will not
Base band signal information more than the first detection threshold value is labeled as the second baseband-detection information；
According in the second baseband-detection information all signal amplitudes and false-alarm probability determine the second detection threshold value；
The second baseband-detection information more than the second detection threshold value is integrated into the first baseband-detection information, obtains
Three baseband-detection information；
If third baseband-detection information is identical as the first baseband-detection information；Then using second detection threshold value as institute
State bottom estimation information of making an uproar corresponding to base band signal information.
Specifically, false-alarm probability P thereinfaRefer to when set bottom estimated value of making an uproar is lower than noise, the handle of meeting mistake
Noise is just known as false-alarm probability P as effective information, i.e. generation false-alarm, the probability that noise is greater than thresholdingfa, and in the application
False-alarm probability PfaGeneral 0.001≤Pfa≤0.05；And according to the available false-alarm threshold value θ of palpus false-alarm probability:
Wherein, PfaFor false-alarm probability.
And the arithmetic mean of all signal amplitudes is the first average value in the base band signal informationThen first is obtained
Detection threshold value are as follows:
Wherein, θ is false-alarm threshold value,For the first average value.
After obtaining the first detection threshold value, signal amplitude is marked beyond the base band signal information of the first detection threshold value
For the first baseband-detection information Φ(1), the base band signal information of the first detection threshold value will be less than labeled as the second baseband-detection
Information Ω-Φ(1)。
Take the second baseband-detection information Ω-Φ(1)In the arithmetic means of all signal amplitudes be second average value, then
To the second detection threshold value are as follows:
Wherein, θ is false-alarm threshold value,For the second average value.
It and will be more than the second detection threshold value T(2)The second baseband-detection information Ω-Φ(1)It is integrated into the first baseband-detection
Information Φ(1)In, to obtain third baseband-detection information Φ(2), constantly repeated according to above-mentioned steps, until Φ(m)=Φ(m+1),
The detection threshold information then finally obtained is bottom estimation information of making an uproar；Such as third baseband-detection information Φ(2)With the first baseband-detection
Information Φ(1)Identical, then the bottom estimation information of making an uproar finally obtained is T(2)。
The embodiment of the present invention determines detection threshold value by signal amplitudes all in base band signal information and false-alarm probability,
And the operation of continuous mean value rejecting is carried out to base band signal information according to detection threshold value, it is right to finally obtain base band signal information institute
The bottom estimation information of making an uproar answered, to facilitate the extract real-time of succeeding impulse describing word.
On the basis of the above embodiments, the bottom of making an uproar according to estimates that information and the baseband signal envelope information are true
It the step of fixed first threshold information and the second threshold information, specifically includes:
Using the bottom estimation information of making an uproar as the first threshold information, and obtain maximum value in the baseband signal envelope information
For the first envelope information；
First envelope information and first threshold information are subtracted each other, the first difference information is obtained；
First difference information is multiplied with threshold parameter information, obtains the second threshold information.
Specifically, wherein described threshold parameter information μ is can to carry out value as the case may be, 0≤μ of value range
≤1；The first threshold information herein is determined according to bottom estimation information is made an uproar, therefore the first threshold information can be estimated with bottom of making an uproar
It calculates the variation of information and changes, and the second threshold information herein is according to first threshold information and baseband signal envelope information
Be calculated, thus second threshold information can also make an uproar bottom estimation information and baseband signal envelope information variation and change, and
Bottom estimation information of making an uproar and baseband signal envelope information are obtained by base band signal information, as long as therefore in base band signal information
Signal amplitude changes, then threshold information can also change with the variation of base band signal information signal amplitude, therefore the door
Limit information can be automatically adjusted as base band signal information signal amplitude changes.
The embodiment of the present invention estimates that information and the determination of baseband signal envelope information can be with base band signal informations by bottom of making an uproar
The threshold information of signal amplitude variation and automatic adjustment, is conducive to the subsequent extract real-time for pulse descriptive word.
On the basis of the above embodiments, it is described according to the baseband signal envelope information, first threshold information and
The step of second threshold information determines pulse signature messages, specifically includes:
Signal amplitude in the baseband signal envelope information is greater than to the baseband signal envelope information mark of the first threshold information
It is denoted as first information cluster；
If the maximum signal amplitude value in the first information cluster is greater than second threshold information, it is determined that first letter
Breath cluster is pulse signature messages.
Specifically, all baseband signal envelope information signal amplitudes are successively compared with the first threshold information, when
It then will be more than the first thresholding letter when having multiple adjacent baseband signal envelope information signal amplitudes more than the first threshold information
The adjacent baseband signal envelope information signal amplitude of breath is labeled as first information cluster.
The maximum value of first information cluster signal amplitude is compared with the second threshold information again, if the first information cluster is believed
The maximum value of number amplitude is greater than the second threshold information, it is determined that the first information cluster is pulse signature messages, if the first information
The maximum value of cluster signal amplitude is not more than the second threshold information, then determines that the first information cluster is not pulse signature messages.
The embodiment of the present invention by by baseband signal envelope information signal amplitude and the first threshold information comparison, so that it is determined that
First information cluster is compared by the maximum signal amplitude value in first information cluster with the second threshold information, so that it is determined that pulse signal
Information is conducive to the subsequent extraction for pulse descriptive word.
On the basis of the above embodiments, described according to the pulse signature messages, first threshold information and described
Second threshold information extracts the step of pulse descriptive word, specifically includes:
The first intersection point of the pulse signature messages and the second threshold information is obtained, the pulse as pulse signature messages is arrived
Up to the time；
The second intersection point for obtaining the pulse signature messages and the second threshold information, at the end of pulse signature messages
Between；
The difference for obtaining the arrival time of the pulse signature messages and the end time of the pulse signature messages, as
The pulse width of the pulse signature messages；
The difference for obtaining the maximum signal amplitude value and the first threshold information in the baseband signal envelope information, as described
The impulse amplitude of pulse signature messages；
According to the pulse arrival time of the pulse signature messages, pulse width and impulse amplitude, pulse descriptive word is extracted.
Specifically, extracting pulse in the pulse arrival time, pulse width and the impulse amplitude that get the pulse signal and retouching
Further include integrating these information after stating word, is finally completed the extraction of pulse descriptive word, and complete pulse descriptive word
The pulse descriptive word can also be exported after extraction；And the threshold information can become with base band signal information signal amplitude
Change and automatically adjust, therefore can be realized and accurately extract pulse descriptive word in real time.
The embodiment of the present invention by pretend to be signal message and threshold information respectively determine pulse signal pulse arrival time,
Pulse width and impulse amplitude realize the extraction of pulse descriptive word.
Fig. 2 is the extraction element structural schematic diagram for the pulse descriptive word that one embodiment of the invention provides, as shown in Fig. 2, packet
It includes: detection module 210, estimation block 220, analysis module 230, confirmation module 240 and extraction module 250.
Wherein, detection module 210 are carried out for obtaining base band signal information, and by the base band signal information based on cunning
The envelope detection of window is handled, and obtains the corresponding baseband signal envelope information of the base band signal information；Wherein, estimation block 220
For the base band signal information to be carried out bottom estimation processing of making an uproar, bottom estimation letter of making an uproar corresponding to the base band signal information is obtained
Breath；Wherein, analysis module 230 estimates that information and the baseband signal envelope information determine the first thresholding for bottom of making an uproar according to
Information and the second threshold information；Wherein, confirmation module 240 is according to the baseband signal envelope information, first threshold information
Pulse signature messages are determined with second threshold information；Wherein, extraction module 250 be used for according to the pulse signature messages,
First threshold information and second threshold information extract pulse descriptive word.
A kind of extraction element of pulse descriptive word provided in an embodiment of the present invention is for executing the above-mentioned each method of the present invention
Embodiment, specific process and is discussed in detail and please refers to above-mentioned each method embodiment, and details are not described herein again.
The embodiment of the present invention handles to obtain by the way that base band signal information to be carried out to the envelope detection based on sliding window in the time domain
Signal more preferably base band signal information, the detection process calculation amount based on sliding window is small, short processing time, so that in subsequent process
In may be implemented extract real-time for pulse descriptive word, can and after the bottom estimation processing that carries out making an uproar to base band signal information
To combine the threshold information of base band signal information adjust automatically, to realize the extract real-time for pulse descriptive word.
Fig. 3 is the structural schematic diagram for a kind of electronic equipment that one embodiment of the invention provides, as shown in figure 3, the equipment can
To include:
Processor (processor) 310,320, memory communication interface (Communications Interface)
(memory) 330 and communication bus 340, wherein processor 310, communication interface 320, memory 330 are completed by bus 340
Mutual communication.Communication interface 320 can be used for the transmission of the information between automated test device and automatization test system.
Processor 310 can call the logical order in memory 330, to execute following method: obtaining base band signal information；It will be described
Base band signal information carries out the processing of the envelope detection based on sliding window, obtains the corresponding baseband signal envelope of the base band signal information
Information；The base band signal information is subjected to bottom estimation processing of making an uproar, obtains bottom estimation of making an uproar corresponding to the base band signal information
Information；Estimate that information and the baseband signal envelope information determine the first threshold information and the second thresholding letter according to the bottom of making an uproar
Breath；Pulse signature messages are determined according to baseband signal envelope information, the first threshold information and the second threshold information；Believed according to pulse
Number information, the first threshold information and the second threshold information extract pulse descriptive word.
In addition, the logical order in above-mentioned memory 330 can be realized by way of SFU software functional unit and conduct
Independent product when selling or using, can store in a computer readable storage medium.Based on this understanding, originally
Substantially the part of the part that contributes to existing technology or the technical solution can be in other words for the technical solution of invention
The form of software product embodies, which is stored in a storage medium, including some instructions to
So that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation of the present invention
The all or part of the steps of example the method.And storage medium above-mentioned include: USB flash disk, mobile hard disk, read-only memory (ROM,
Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic or disk etc. it is various
It can store the medium of program code.
The embodiment of the present invention discloses a kind of computer program product, and the computer program product is non-transient including being stored in
Computer program on computer readable storage medium, the computer program include program instruction, when described program instructs quilt
When computer executes, computer is able to carry out method provided by above-mentioned each method embodiment, for example, obtains baseband signal
Information；The base band signal information is subjected to the processing of the envelope detection based on sliding window, it is corresponding to obtain the base band signal information
Baseband signal envelope information；The base band signal information is subjected to bottom estimation processing of making an uproar, it is right to obtain the base band signal information institute
The bottom estimation information of making an uproar answered；According to it is described make an uproar bottom estimation information and the baseband signal envelope information determine the first threshold information and
Second threshold information；Pulse signature messages are determined according to baseband signal envelope information, the first threshold information and the second threshold information；
Pulse descriptive word is extracted according to pulse signature messages, the first threshold information and the second threshold information.
The embodiment of the present invention provides a kind of non-transient computer readable storage medium, the non-transient computer readable storage medium
Matter stores computer instruction, which makes computer execute feature card test side peculiar to vessel provided by above-described embodiment
Method, for example, obtain base band signal information；The base band signal information is subjected to the processing of the envelope detection based on sliding window, is obtained
To the corresponding baseband signal envelope information of the base band signal information；The base band signal information is subjected to bottom estimation processing of making an uproar,
Obtain bottom estimation information of making an uproar corresponding to the base band signal information；According to bottom estimation information and the baseband signal packet of making an uproar
Network information determines the first threshold information and the second threshold information；According to baseband signal envelope information, the first threshold information and second
Threshold information determines pulse signature messages；Pulse is extracted according to pulse signature messages, the first threshold information and the second threshold information
Describing word.
The apparatus embodiments described above are merely exemplary, wherein described, unit can as illustrated by the separation member
It is physically separated with being or may not be, component shown as a unit may or may not be physics list
Member, it can it is in one place, or may be distributed over multiple network units.It can be selected according to the actual needs
In some or all of the modules achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creativeness
Labour in the case where, it can understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should
Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
Method described in certain parts of example or embodiment.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (8)
1. a kind of extracting method of pulse descriptive word characterized by comprising
Base band signal information is obtained, and the base band signal information is subjected to the processing of the envelope detection based on sliding window, is obtained described
The corresponding baseband signal envelope information of base band signal information；
The base band signal information is subjected to bottom estimation processing of making an uproar, obtains bottom estimation letter of making an uproar corresponding to the base band signal information
Breath；
Estimate that information and the baseband signal envelope information determine the first threshold information and the second threshold information according to the bottom of making an uproar；
Determine that pulse signal is believed according to the baseband signal envelope information, first threshold information and second threshold information
Breath；
Pulse descriptive word is extracted according to the pulse signature messages, first threshold information and second threshold information.
2. method according to claim 1, which is characterized in that described to carry out the base band signal information make an uproar at the estimation of bottom
Reason, obtain making an uproar corresponding to the base band signal information bottom estimation information the step of, specifically include:
The first detection threshold value is determined according to signal amplitudes all in the base band signal information and false-alarm probability；
Signal amplitude is labeled as the first baseband-detection information beyond the base band signal information of the first detection threshold value, will be less than
The base band signal information of first detection threshold value is labeled as the second baseband-detection information；
According in the second baseband-detection information all signal amplitudes and false-alarm probability determine the second detection threshold value；
The second baseband-detection information more than the second detection threshold value is integrated into the first baseband-detection information, third base is obtained
Band detection information；
If third baseband-detection information is identical as the first baseband-detection information；Then using second detection threshold value as the base
Make an uproar corresponding to band signal information bottom estimation information.
3. method according to claim 1, which is characterized in that bottom estimation information and the baseband signal of making an uproar according to
Envelope information determines the step of the first threshold information and the second threshold information, specifically includes:
Using the bottom estimation information of making an uproar as the first threshold information, and obtaining in the baseband signal envelope information maximum value is the
One envelope information；
First envelope information and first threshold information are subtracted each other, the first difference information is obtained；
First difference information is multiplied with threshold parameter information, obtains the second threshold information.
4. method according to claim 1, which is characterized in that described according to the baseband signal envelope information, described first
The step of threshold information and second threshold information determine pulse signature messages, specifically includes:
The baseband signal envelope information that signal amplitude in the baseband signal envelope information is greater than the first threshold information is labeled as
First information cluster；
If the maximum signal amplitude value in the first information cluster is greater than second threshold information, it is determined that the first information cluster
For pulse signature messages.
5. method according to claim 1, which is characterized in that described according to the pulse signature messages, first thresholding
The step of information and second threshold information extract pulse descriptive word, specifically includes:
The first intersection point for obtaining the pulse signature messages and the second threshold information, when the pulse as pulse signature messages reaches
Between；
The second intersection point for obtaining the pulse signature messages and the second threshold information, the end time as pulse signature messages；
The difference for obtaining the arrival time of the pulse signature messages and the end time of the pulse signature messages, as described
The pulse width of pulse signature messages；
The difference for obtaining the maximum signal amplitude value and the first threshold information in the baseband signal envelope information, as the pulse
The impulse amplitude of signal message；
According to the pulse arrival time of the pulse signature messages, pulse width and impulse amplitude, pulse descriptive word is extracted.
6. a kind of extraction element of pulse descriptive word characterized by comprising
Detection module carries out the envelope detection based on sliding window for obtaining base band signal information, and by the base band signal information
Processing, obtains the corresponding baseband signal envelope information of the base band signal information；
It is right to obtain the base band signal information institute for the base band signal information to be carried out bottom estimation processing of making an uproar for estimation block
The bottom estimation information of making an uproar answered；
Analysis module, for make an uproar according to bottom estimation information and the baseband signal envelope information determine the first threshold information and
Second threshold information；
Confirmation module is determined according to the baseband signal envelope information, first threshold information and second threshold information
Pulse signature messages；
Extraction module, for being extracted according to the pulse signature messages, first threshold information and second threshold information
Pulse descriptive word.
7. a kind of electronic equipment including memory, processor and stores the calculating that can be run on a memory and on a processor
Machine program, which is characterized in that realize that the pulse as described in any one of claim 1 to 5 is retouched when the processor executes described program
State the extracting method of word.
8. a kind of non-transient computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer journey
It is realized when sequence is executed by processor as described in any one of claim 1 to 5 the step of the extracting method of pulse descriptive word.
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