CN106375042A - Short signal capturing method based on DPX and system thereof - Google Patents
Short signal capturing method based on DPX and system thereof Download PDFInfo
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Abstract
The invention discloses a short signal capturing method based on DPX and system thereof. The frequency spectrum data of a signal is quantized, added and compressed to obtain the frequency occurrence number with a statistical property to be transmitted to an upper computer, the upper computer colors each site in a two-dimensional point figure according to the number, and then the sites are displayed on a screen. The system established according to the method comprises a radio frequency signal receiving module, a pre-processing module, a digital signal processing module and a display module; the radio frequency signal receiving module receives a radio frequency signal and transmits the signal to the pre-processing module to be processed, thereby obtaining the frequency spectrum data, the digital signal processing module samples the frequency spectrum data and acquires the frequency occurrence number data through quantization and addition processing, and then the number data is compressed and then transmitted to the upper computer to be displayed. Through the adoption of the method disclosed by the invention, various transient signals and same-frequency signals can be well detected to satisfy the radio monitoring work under the complicated electromagnetic environment; and the transmission quantity of the data can be reduced through data compression to facilitate the data transmission.
Description
Technical field
The present invention relates to signal of communication process field, more particularly to a kind of short signal method for catching based on dpx and
Its system.
Background technology
In recent years, with wireless technology digitized, intelligentized fast development, high-speed frequency-hopping, spread spectrum, time division multiplex, multiple
The various New technical use such as miscellaneous modulation are more and more extensive, the intercepting and capturing in spectrum monitoring with management work, to short signal frequency spectrum
It is always a pendent difficult problem with positioning, various Low probability intercept signal are increasing, carried out no using conventional art means
Line electrical signal detection, and dpx digital phosphor spectral technology exactly solves an effective means of these detection difficult problems, this technology is permissible
100% captures the pulse signal more than 125 μ s, and is reflected different signals with color mode in real time.
Dpx can be simply described as tens thousand of spectrum measurements of execution per second, then updates screen with lively real time rate
Curtain, event infrequently is most important to detection for this transformation rate, because the speed that event occurs is too fast, liquid crystal display brush
New frequency does not catch up with such speed, and human eye also cannot be directly viewable its frequency spectrum by naked eyes.Therefore pass through certain time
Interior, each frame frequency modal data is all write data bitmap storehouse, is finally sent on screen with the visible speed of human eye and refreshes.Numeral
Fluorogram by follow the tracks of frequency amplitude occurrence number realize proportioning, such that it is able to eyes rare transition and normal signal
Make a distinction with background noise.
And traditional dpx measurement data data discrete, display effect is bad, and because times of collection is many, data volume is very
Greatly, cause no small difficulty to data transfer.
Content of the invention
For solving above technical problem, the present invention provides a kind of short signal method for catching based on dpx and its system.Logical
Cross benefit point and compressed data, reduce data volume, and it is ensured that signal capture probability while reducing data volume.
Technical scheme is as follows:
A kind of short signal method for catching based on dpx, it is critical only that and comprises the following steps:
Step 1, receives radiofrequency signal；
Step 2, carries out, to the radiofrequency signal receiving, the frequency spectrum data that fast Fourier transform obtains radiofrequency signal；
Step 3, samples to frequency spectrum data, gathers the frequency spectrum data of m frame altogether, and every frame frequency modal data comprises n data,
The corresponding frequency of each data and the amplitude of this frequency；
Step 4, carries out data-measuring to every frame frequency modal data, by the amplitude quantization of each data in every frame frequency modal data
For integer；
Step 5, builds two-dimensional points bitmap and the frequency spectrum data after quantifying is mapped to two-dimensional point in figure；
Two-dimensional points bitmap is with frequency as abscissa, and amplitude is the two-dimensional mesh trrellis diagram constructed by vertical coordinate, wherein abscissa
Represent a position with the intersection point of vertical coordinate, each point position corresponds to frequency and the amplitude of a data；Frequency spectrum data is mapped to two-dimensional points
Bitmap be by each data in two-dimensional point in figure corresponding to point position be marked；
Step 6, carries out mending point process to the two-dimensional points bitmap of every frame frequency modal data；
Step 7, the number of times of all two-dimensional point each point position mark of in figure after mending point and processing for the statistics；
Step 8, is uploaded to host computer after the number of times data compression of each point position mark that statistics is obtained, host computer receives
Data is carried out decompress the number of times reducing each point position mark to compressed data；
Step 9, the number of times of each point position mark according to reduction for the host computer and the number of times of regulation and the proportioning of color, to two
In dimension bit map/bitmap, each point position is coloured, and is then shown on screen.
Using said method, can preferably detect various transient signals, homogenous frequency signal by mending point process, complexity can be met
Radio monitoring work under electromagnetic environment, the fluorogram obtaining is higher as seriality；Data can be reduced by data compression
Transmission quantity, be easy to data transfer.
Further, frame number m=(t*samplerate)/n in step 3, wherein t represent to host computer transmission data
Time interval, samplerate represents data sampling rate, and data sampling rate passes through artificial setting.
Using said method, the data acquisition frame number of system requirements can be determined for compliance with according to the different requirement of system.
Further, step 4 is quantified to frequency spectrum data using following methods:
A, according to the amplitude upper limit in the extreme difference srcfftrangedb and raw spectroscopy data of amplitude in raw spectroscopy data
Rangeuplimit obtains the lower magnitude limits rangedownlimit of raw spectroscopy data according to below equation；
Rangedownlimit=rangeuplimit-srcfftrangedb；
B, according to below equation calculate quantify coefficient k；
C, using below equation, every frame frequency modal data is quantified；
Pdestfft (i)=k* [(psrcfft (i)/l)-rangedownlimit], wherein psrcfft (i) represents original
The amplitude of i-th frequency in frequency spectrum data, pdestfft (i) represents the quantized result of i-th frequency, and l represents that frequency spectrum data is adopted
The multiple that before sample, the amplitude of each data expands, if being non-integer in quantized result, quantized result carry rounds；
D, fixed amplitude scope, the amplitude of the every frame frequency modal data after quantifying are fixed on the amplitude range of system setting
In [a, b], the data amplitude being wherein more than maximum amplitude b is taken as b, is taken as a less than the data amplitude of minimum amplitude a.
Using said method, conveniently set up the two-dimensional points bitmap of frequency spectrum data.
Further, step 6 carries out to two-dimensional points bitmap mending putting using following methods and processes:
On the basis of point position left in the point position of the two neighboring labelling of two-dimensional point in figure, if the Amplitude Ration left point position of right point position
The high 2 point positions of amplitude more than, then the point position above left point position is carried out mending a point labelling, until amplitude and the right point position of left point position
Amplitude only differ 1 point position；
If more than the low 2 point positions of the amplitude of the Amplitude Ration left point position of right point position, mending to the point position below left point position
Point labelling, until the amplitude of left point position only differs 1 point position with the amplitude of right point position.
Using said method, can preferably detect various transient signals, homogenous frequency signal by mending point process, complexity can be met
Radio monitoring work under electromagnetic environment.
A kind of short signal based on dpx catches system, its it is critical only that including:
For receiving the Receiver Module of radiofrequency signal, this Receiver Module receives radiofrequency signal；
For the radiofrequency signal receiving is carried out with the pretreatment module of pretreatment, the radio frequency receiving is believed by this pretreatment module
Number it is converted into baseband signal and passes through fast Fourier transform, the original signal spectrum that spectrum analyses obtain signal is carried out to radiofrequency signal
Data；
For the digital signal processing module that raw spectroscopy data is processed, this module collection raw spectroscopy data is simultaneously
Quantification treatment is carried out to the frequency spectrum data of collection, obtains the number of times of two-dimensional point each point position mark of in figure；
For frequency spectrum data carries out colouring the display module of display, this module obtains the number of times of each point position mark, and
Each point position of two-dimensional point in figure is coloured, is finally shown on the screen of display module.
Using said system, radio signal can be monitored under complex electromagnetic environment, and will be different with color mode
Signal reflects, and is easy to personnel monitoring.
Further, described pretreatment module is programmable gate array module.
Using said system, it is easy to enroll algorithm, program to pretreatment module.
Further, described digital signal processing module is provided with
Carry out signal capture for the first time for determining whether, if so, then calculated according to m=(t*samplerate)/n and adopt
Data acquisition is entered, if it is not, then directly carrying out data acquisition after the frame number m of collection frequency spectrum data；
Step for gathering xth frame frequency modal data, wherein x ∈ (1, m)；
Step for being quantified to the xth frame frequency modal data gathering, each data in the frequency spectrum data after quantization
Amplitude drops in the range of setting；
Step for the frequency spectrum data after quantifying is mapped to two-dimensional point in figure；
The step whether only differing 1 point position for the amplitude judging two neighboring point position about two-dimensional point in figure；If
Be not, then carry out mend point process, if so, then by the number of times of two-dimensional point each point position mark of in figure of this frame frequency modal data with upper
The number of times of two-dimensional point each point position mark of in figure of one frame frequency modal data is added up；
For determining whether the step continuing gathered data, judge that whether x is equal to m, if so, then by data compression and upload
Display module, if it is not, then continue collection (x+1)th frame data.
Using above-mentioned steps, perfect two-dimensional point diagram data can be obtained, and reduce the data volume of transmission data.
Beneficial effect: a benefit point process is passed through using the present invention and can preferably detect various transient signals, homogenous frequency signal, can be full
Radio monitoring work under sufficient complex electromagnetic environment；The transmission quantity of data can be reduced by data compression, be easy to data transfer.
Brief description
Fig. 1 is method of the present invention theory diagram；
Fig. 2 is the system block diagram of the present invention；
Fig. 3 is the workflow diagram of digital signal processing module in Fig. 2；
Fig. 4 is the structural representation of the two-dimensional points bitmap part of the present invention；
Fig. 5 mends the structural representation of the two-dimensional points bitmap part that point is processed for the present invention；
Fig. 6 is the design sketch of the present invention.
Specific embodiment
With reference to embodiment and accompanying drawing, the invention will be further described.
As shown in figure 1, a kind of short signal method for catching based on dpx, comprise the following steps:
Step 1, receives radiofrequency signal.
Step 2, carries out, to the radiofrequency signal receiving, the frequency spectrum data that fast Fourier transform obtains radiofrequency signal.
Step 3, samples to frequency spectrum data, gathers the frequency spectrum data of m frame altogether, and every frame frequency modal data comprises n data,
The corresponding frequency of each data and the amplitude of this frequency.
Frame number m=(t*samplerate)/n, wherein t represent the time interval to host computer transmission data,
Samplerate represents data sampling rate, and data sampling rate is by manually arranging.
Step 4, carries out data-measuring using following steps to every frame frequency modal data, by the every number in every frame frequency modal data
According to amplitude quantization be integer:
A, according to the amplitude upper limit in the extreme difference srcfftrangedb and raw spectroscopy data of amplitude in raw spectroscopy data
Rangeuplimit obtains the lower magnitude limits rangedownlimit of raw spectroscopy data according to below equation；
Rangedownlimit=rangeuplimit-srcfftrangedb；
B, according to below equation calculate quantify coefficient k；
C, using below equation, every frame frequency modal data is quantified；
Pdestfft (i)=k* [(psrcfft (i)/l)-rangedownlimit], wherein psrcfft (i) represents original
The amplitude of i-th frequency in frequency spectrum data, pdestfft (i) represents the quantized result of i-th frequency, and l represents that frequency spectrum data is adopted
The multiple that before sample, the amplitude of each data expands, if being non-integer in quantized result, quantized result carry rounds；
D, fixed amplitude scope, the amplitude of the every frame frequency modal data after quantifying are fixed on the amplitude range of system setting
In [a, b], the data amplitude being wherein more than maximum amplitude b is taken as b, is taken as a less than the data amplitude of minimum amplitude a.
Step 5, builds two-dimensional points bitmap and the frequency spectrum data after quantifying is mapped to two-dimensional point in figure；
As shown in figure 4, two-dimensional points bitmap is with frequency as abscissa, amplitude is the two-dimensional mesh trrellis diagram constructed by vertical coordinate,
Wherein abscissa and the intersection point of vertical coordinate represent a position, and each point position corresponds to frequency and the amplitude of a data；Frequency spectrum data reflects
Be mapped to two-dimensional points bitmap be by each data in two-dimensional point in figure corresponding to point position be marked.
Step 6, carries out benefit point using following methods and processes to the two-dimensional points bitmap of every frame frequency modal data:
As shown in figure 5, on the basis of point position left in the point position of the two neighboring labelling of two-dimensional point in figure, if the width of right point position
It is worth more than 2 point positions higher than the amplitude of left point position, then the point position above left point position is carried out mending point labelling, until the width of left point position
Value only differs 1 point position with the amplitude of right point position.
If more than the low 2 point positions of the amplitude of the Amplitude Ration left point position of right point position, mending to the point position below left point position
Point labelling, until the amplitude of left point position only differs 1 point position with the amplitude of right point position.
Step 7, the number of times of all two-dimensional point each point position mark of in figure after mending point and processing for the statistics.
Step 8, is uploaded to host computer after the number of times data compression of each point position mark that statistics is obtained, host computer receives
Data is carried out decompress the number of times reducing each point position mark to compressed data；
Step 9, the number of times of each point position mark according to reduction for the host computer and the number of times of regulation and the proportioning of color, to two
In dimension bit map/bitmap, each point position is coloured.The different color of different number of times correspondences, will according to the number of times that each point position occurs
This point position mark becomes corresponding color, finally the two-dimensional points bitmap of good for labelling color is shown on screen.
As shown in Fig. 2 a kind of short signal based on dpx catches system, comprising:
For receiving the Receiver Module of radiofrequency signal, this Receiver Module receives radiofrequency signal；
For the radiofrequency signal receiving is carried out with the pretreatment module of pretreatment, this pretreatment module is programmable gate array
Module.
The radiofrequency signal of reception is converted into baseband signal and passes through fast Fourier transform by pretreatment module, and radio frequency is believed
Number carry out the raw spectroscopy data that spectrum analyses obtain signal.
For the digital signal processing module that raw spectroscopy data is processed.As shown in figure 3, at described digital signal
Reason module is provided with
Carry out signal capture for the first time for determining whether, if so, then calculated according to m=(t*samplerate)/n and adopt
Data acquisition is entered, if it is not, then directly carrying out data acquisition after the frame number m of collection frequency spectrum data.
Step for gathering xth frame frequency modal data, wherein x ∈ (1, m).
Step for being quantified to the xth frame frequency modal data gathering, each data in the frequency spectrum data after quantization
Amplitude drops in the range of setting.
Step for the frequency spectrum data after quantifying is mapped to two-dimensional point in figure.
The step whether only differing 1 point position for the amplitude judging two neighboring point position about two-dimensional point in figure；If
Be not, then carry out mend point process, if so, then by the number of times of two-dimensional point each point position mark of in figure of this frame frequency modal data with upper
The number of times of two-dimensional point each point position mark of in figure of one frame frequency modal data is added up.
For determining whether the step continuing gathered data, judge that whether x is equal to m, if so, then by data compression and upload
Display module, if it is not, then continue collection (x+1)th frame data.
For frequency spectrum data carries out colouring the display module of display, this module obtains the number of times of each point position mark, and
Each point position of two-dimensional point in figure is coloured, is finally shown on the screen of display module.
During system work, Receiver Module receives radiofrequency signal, and converts signals into intermediate-freuqncy signal, is transferred to pre- place
Reason module, pretreatment module carries out a turn frequency and obtains baseband signal to intermediate-freuqncy signal, and carries out fast Fourier change to baseband signal
Change, obtain the frequency spectrum data of radiofrequency signal, finally frequency spectrum data is transferred to digital signal processing module, digital signal processing module pair
Frequency spectrum data carries out sampling, quantifies, mend point, statistics, compression are uploaded to display module after processing, and display module is to the compression uploading
Data carries out decompressing, show on a display screen after coloring treatment, and the fluorogram picture of the radiofrequency signal obtaining is as shown in Figure 6.
Finally it should be noted that foregoing description is only the preferred embodiments of the present invention, the ordinary skill people of this area
Member, under the enlightenment of the present invention, without prejudice on the premise of present inventive concept and claim, can make table as multiple types
Show, such conversion each falls within protection scope of the present invention.
Claims (7)
1. a kind of short signal method for catching based on dpx is it is characterised in that comprise the following steps:
Step 1, receives radiofrequency signal；
Step 2, carries out, to the radiofrequency signal receiving, the frequency spectrum data that fast Fourier transform obtains radiofrequency signal；
Step 3, samples to frequency spectrum data, gathers the frequency spectrum data of m frame altogether, and every frame frequency modal data comprises n data, each
The corresponding frequency of data and the amplitude of this frequency；
Step 4, carries out data-measuring to every frame frequency modal data, and the amplitude quantization of each data in every frame frequency modal data is whole
Number；
Step 5, builds two-dimensional points bitmap and the frequency spectrum data after quantifying is mapped to two-dimensional point in figure；
Two-dimensional points bitmap is with frequency as abscissa, and amplitude is the two-dimensional mesh trrellis diagram constructed by vertical coordinate, wherein abscissa with vertical
The intersection point of coordinate represents a position, and each point position corresponds to frequency and the amplitude of a data；Frequency spectrum data is mapped to two-dimensional points bitmap
Be by each data in two-dimensional point in figure corresponding to point position be marked；
Step 6, carries out mending point process to the two-dimensional points bitmap of every frame frequency modal data；
Step 7, the number of times of all two-dimensional point each point position mark of in figure after mending point and processing for the statistics；
Step 8, is uploaded to host computer after the number of times data compression of each point position mark that statistics is obtained, host computer receives pressure
Contracting data carries out to data decompressing the number of times reducing each point position mark；
Step 9, the number of times of each point position mark according to reduction for the host computer and the number of times of regulation and the proportioning of color, to two-dimensional points
In bitmap, each point position is coloured, and is then shown on screen.
2. according to claim 1 the short signal method for catching based on dpx it is characterised in that: frame number m=(t* in step 3
Samplerate)/n, wherein t represent the time interval to host computer transmission data, and samplerate represents data sampling rate.
3. according to claim 1 the short signal method for catching based on dpx it is characterised in that: step 4 adopts following methods
Frequency spectrum data is quantified:
A, according to the amplitude upper limit in the extreme difference srcfftrangedb and raw spectroscopy data of amplitude in raw spectroscopy data
Rangeuplimit obtains the lower magnitude limits rangedownlimit of raw spectroscopy data according to below equation；
Rangedownlimit=rangeuplimit-srcfftrangedb；
B, according to below equation calculate quantify coefficient k；
C, using below equation, every frame frequency modal data is quantified；
Pdestfft (i)=k* [(psrcfft (i)/l)-rangedownlimit], wherein psrcfft (i) represent original signal spectrum
The amplitude of i-th frequency in data, pdestfft (i) represents the quantized result of i-th frequency, before l represents frequency spectrum data sampling
The multiple that the amplitude of each data expands, if being non-integer in quantized result, quantized result carry rounds；
D, fixed amplitude scope, the amplitude of the every frame frequency modal data after quantifying are fixed on the amplitude range [a, b] of system setting
In, the data amplitude being wherein more than maximum amplitude b is taken as b, is taken as a less than the data amplitude of minimum amplitude a.
4. according to claim 1 the short signal method for catching based on dpx it is characterised in that: step 6 adopts following methods
Two-dimensional points bitmap is carried out with benefit point process:
On the basis of point position left in the point position of the two neighboring labelling of two-dimensional point in figure, if the width of the Amplitude Ration left point position of right point position
It is worth more than high 2 point positions, then the point position above left point position is carried out mending point labelling, until the amplitude of left point position and the width of right point position
Value only differs 1 point position；
If more than the low 2 point positions of the amplitude of the Amplitude Ration left point position of right point position, the point position below left point position is carried out mend point mark
Note, until the amplitude of left point position only differs 1 point position with the amplitude of right point position.
5. a kind of short signal based on dpx catches system it is characterised in that including:
For receiving the Receiver Module of radiofrequency signal, this Receiver Module receives radiofrequency signal；
For the radiofrequency signal receiving is carried out with the pretreatment module of pretreatment, the radiofrequency signal of reception is turned by this pretreatment module
Change baseband signal into and pass through fast Fourier transform, radiofrequency signal is carried out with the original signal spectrum number that spectrum analyses obtain signal
According to；
For the digital signal processing module that raw spectroscopy data is processed, this module collection raw spectroscopy data to adopting
The frequency spectrum data of collection carries out quantification treatment, obtains the number of times of two-dimensional point each point position mark of in figure；
For carrying out colouring the display module of display by frequency spectrum data, this module obtains the number of times of each point position mark, and to two
In dimension bit map/bitmap, each point position is coloured, and is finally shown on the screen of display module.
6. according to claim 5 based on dpx short signal catch system it is characterised in that: described pretreatment module is
Programmable gate array module.
7. according to claim 5 based on dpx short signal catch system it is characterised in that: described Digital Signal Processing
Module is provided with
Carry out signal capture for the first time for determining whether, if so, then collection frequency is calculated according to m=(t*samplerate)/n
Data acquisition is entered, if it is not, then directly carrying out data acquisition after the frame number m of modal data；
Step for gathering xth frame frequency modal data, wherein x ∈ (1, m)；
Step for being quantified to the xth frame frequency modal data gathering, the amplitude of each data in the frequency spectrum data after quantization
Drop in the range of setting；
Step for the frequency spectrum data after quantifying is mapped to two-dimensional point in figure；
The step whether only differing 1 point position for the amplitude judging two neighboring point position about two-dimensional point in figure；If it is not,
Then carry out mending point process, if so, then by the number of times of two-dimensional point each point position mark of in figure of this frame frequency modal data and previous frame
The number of times of two-dimensional point each point position mark of in figure of frequency spectrum data is added up；
For determining whether the step continuing gathered data, judge that whether x is equal to m, if so, then by data compression and upload display
Module, if it is not, then continue collection (x+1)th frame data.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108680787A (en) * | 2018-05-23 | 2018-10-19 | 成都玖锦科技有限公司 | Real time spectral analysis method based on FPGA |
| CN115001605A (en) * | 2022-05-30 | 2022-09-02 | 电子科技大学 | Fluorescent spectrum analysis method for satellite communication signal real-time detection |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100235124A1 (en) * | 2009-03-13 | 2010-09-16 | Tektronix, Inc. | Occupancy measurement and triggering in frequency domain bitmaps |
| CN102419396A (en) * | 2010-06-29 | 2012-04-18 | 特克特朗尼克公司 | Method and apparatus for generating a gated density bitmap |
| CN104007300A (en) * | 2013-11-14 | 2014-08-27 | 江苏绿扬电子仪器集团有限公司 | Digital phosphor oscilloscope random sampling phase scrambling circuit design method |
| CN105842507A (en) * | 2016-05-09 | 2016-08-10 | 优利德科技(中国)有限公司 | Oscilloscope digit fluorescence display method and control apparatus |
-
2016
- 2016-08-30 CN CN201610760844.5A patent/CN106375042B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100235124A1 (en) * | 2009-03-13 | 2010-09-16 | Tektronix, Inc. | Occupancy measurement and triggering in frequency domain bitmaps |
| CN102419396A (en) * | 2010-06-29 | 2012-04-18 | 特克特朗尼克公司 | Method and apparatus for generating a gated density bitmap |
| CN104007300A (en) * | 2013-11-14 | 2014-08-27 | 江苏绿扬电子仪器集团有限公司 | Digital phosphor oscilloscope random sampling phase scrambling circuit design method |
| CN105842507A (en) * | 2016-05-09 | 2016-08-10 | 优利德科技(中国)有限公司 | Oscilloscope digit fluorescence display method and control apparatus |
Non-Patent Citations (3)
| Title |
|---|
| CHUANDANG LIU,LUXI LU: "Overlapping Signal Separation in DPX Spectrum Based on EM Algorithm", 《2ND INTERNATIONAL WORKSHOP ON MATERIALS ENGINEERING AND COMPUTER SCIENCES》 * |
| 刘帮强等: "基于FPGA的数字荧光显示系统设计与实现", 《电子测量技术》 * |
| 郭仕剑等: "数字荧光实时频谱分析设备的设计实现", 《电子测量与仪器学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108680787A (en) * | 2018-05-23 | 2018-10-19 | 成都玖锦科技有限公司 | Real time spectral analysis method based on FPGA |
| CN115001605A (en) * | 2022-05-30 | 2022-09-02 | 电子科技大学 | Fluorescent spectrum analysis method for satellite communication signal real-time detection |
| CN115001605B (en) * | 2022-05-30 | 2023-01-24 | 电子科技大学 | Fluorescent spectrum analysis method for satellite communication signal real-time detection |
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| CN106375042B (en) | 2018-11-02 |
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