CN107436427A - Space Target Motion Trajectory and radiation signal correlating method - Google Patents
Space Target Motion Trajectory and radiation signal correlating method Download PDFInfo
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- CN107436427A CN107436427A CN201710022577.6A CN201710022577A CN107436427A CN 107436427 A CN107436427 A CN 107436427A CN 201710022577 A CN201710022577 A CN 201710022577A CN 107436427 A CN107436427 A CN 107436427A
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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
- G01S7/41—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
Abstract
A kind of Space Target Motion Trajectory disclosed by the invention and radiation signal correlating method, it is desirable to provide one kind can simplify detecting devices, the correlating method that association error is small, stability is high, consumption resource is few.The technical scheme is that：In test platform, acquisition module will receive the progress AD samplings of single analog signal and the digital frequency conversion that channel exports；And two-way digital channelizing pretreatment output baseband I Q data is carried out in FPGA；Contrast extraterrestrial target radiation signal and test platform, forecast extraterrestrial target track and the similitude of two kinds of relative motion relations of test platform, the theoretical variation rule curve of target electromagnetic radiation signal frequency, theoretical carrier frequency value sequence and reception signal and the forecast extraterrestrial target matching degree of CALCULATING PREDICTION extraterrestrial target are calculated using target emanation signal original frequency；Complete target emanation signal with pay close attention to extraterrestrial target associate and matching, completion Space Target Motion Trajectory and radiation signal associate.
Description
Technical field
The present invention relates to a kind of running situation progress of extraterrestrial target that electromagnetic radiation is produced to artificial satellite, space station etc.
Observation, through integrated treatment, target information is analyzed, improves extraterrestrial target inventory information, the method for grasping roomage state.More specifically
Say, be to be directed to extraterrestrial target electromagnetic radiation signal, based on signal frequency pattern measurement by Space Target Motion Trajectory and target spoke
The method that radio magnetic signal is associated.
Background technology
Target trajectory and spatial distribution are the motion features of target macroscopic view, and the behavior for understanding target has important
Meaning.The motor behavior of target can be accurately and effectively analyzed in terms of macroscopic view by target trajectory and spatial distribution, point
It is whether abnormal etc. to analyse goal behavior.In order to obtain the movement locus of target, it is necessary to realize first detection to moving target with
Track.The problem of detection of moving target and tracking are one very complicated also highly difficult.When also coverage hole, second, ground is seen
Measurement equipment is had a great influence by weather, atmospheric environment, and observation error, the development of Space-based Space Surveillance system easily occurs
It then effectively compensate for these shortcomings.Networking, space-based are carried out in different rail superior portions administration Space Target Surveillance satellite, multi-satellite
System and ground Space Target Surveillance system such as are combined at the measure, will efficiently reduce the observation blind area to extraterrestrial target.Space
Targeted surveillance system is that all artificial objects are entered to space using day, ground based detection equipment (satellite, photoelectricity, radar etc.)
Enter, space operation and leave the process in space and detected, and combine intelligence data, integrated treatment analyzes target track
Road, function, the information such as use.The information such as target track, function are obtained, use it is necessary to by nothing in Space Target Surveillance system
The equipment such as line electric explorer, optical detector, space-based detector obtain belong to same target data and information association and then
Complete cataloguing.Because the movement locus of target includes target track information, and target emanation signal includes objective function, used
Information, therefore, it is one of Space Target Surveillance system critical function that the movement locus of target and radiation signal, which are associated,.
The main measure the item of radio detection has the sample of target emanation signal, frequency, running parameter etc..Due to radio wave propagation
The inherent characteristic that characteristic, wireless communication technology and wireless device software and hardware are realized.Radio detection load visual field and detection
Scope is big, and the extraterrestrial target of multiple different motion tracks is there may be in the range of specific detection time, radio detection, its
In other targets for being not concerned with can upset judgement and extraction to paying close attention to extraterrestrial target signal, influence to associate and catalogue.Traditional
It is larger that error is produced by signal interception temporal information incident space target trajectory.More detections of distributed networking are used in addition
Device, the multi channel detector of array antenna design determine the method that movement locus is associated to moving object detection and tracking
Though error can be reduced equipment compared with it is complicated, resource consumption is big.
The content of the invention
The defects of present invention exists for the special environment of space environment and various moving object detections and tracking,
Detecting devices, the Space Target Motion Trajectory and spoke that association error is small, stability is high, consumption resource is few can be simplified by providing one kind
Penetrate signal correlating method.
The technical proposal for solving the technical problem of the invention is：A kind of Space Target Motion Trajectory closes with radiation signal
Linked method, there is following technical characteristic：In the test platform of radio detection load, test platform uses single exploring antenna list
The radiation signal of passage capture concern extraterrestrial target, the electromagnetic signal of single exploring antenna reception space target emanation；Test platform
Acquisition module is output to signal progress simulated frequency conversion, filtering, amplification by radio-frequency channel；Acquisition module will receive channel output
Single analog signal carry out AD samplings and digital frequency conversion, and export baseband I Q data to association process mould；Association process module
Locus and speed data with reference to known test platform itself, it is determined that the extraterrestrial target radiation signal of concern is flat with detection
The relative motion relation of platform, with reference to optical detector obtain forecast target trajectory, contrast extraterrestrial target radiation signal with
Test platform, optical detector obtain the similitude of the target trajectory relative motion relation of forecast, distinguish other non-passes
Gaze at mark；Test platform based on the multiple frequency measurement to target emanation signal, advise by the frequency change for automatically forming target received signal
Curve is restrained, with reference to the Space Target Motion Trajectory of forecast, utilizes target emanation signal original frequency fcCalculate target electromagnetic radiation
The theoretical variation rule curve of signal frequency, be then based on the similarity of above two law curve, calculate detect the collection of letters number with
Forecast extraterrestrial target k matching degree Jk；Calculate radiation signal and the matching degree of all K possible space targets successively again, formed
Matching degree set { Jk, k=0,1 ..., K-1, and the maximum corresponding relation of matching degree is found in the set, it will receive
Radiation signal matched with concern extraterrestrial target, it is empty to Low Earth Orbit using the feature of moving target electromagnetic radiation signal
Between target identification, complete associating for Space Target Motion Trajectory and radiation signal.
The present invention has the advantages that compared to prior art.
Simplify detection system equipment.The test platform that the present invention is directed in Space Target Surveillance system is entered to extraterrestrial target
The demand for being associated the sample of signal parameter information that the movement locus of target radiates with it is needed when row observation and monitoring, is led to
The electromagnetic signal of single test platform list exploring antenna reception space target emanation is crossed, single Radio Frequency channel is simulated to 1 road signal
Frequency conversion, filtering, amplification are output to acquisition module, acquisition module will receive the single analog signal that channel exports carry out AD samplings and
Digital frequency conversion；AD sampled datas carry out digital channelizing pretreatment output baseband I Q data in FPGA, utilize target emanation
Electromagnetic signal, it is measured and combines the Space Target Motion Trajectory of forecast, target trajectory is associated with radiation signal, adopted
Received with single exploring antenna and associating for Space Target Motion Trajectory and radiation signal can be achieved, without being surveyed to extraterrestrial target
To, positioning and tracking, it is not necessary to array received equipment, it is not necessary to multistation networking detect, enormously simplify detection system equipment
Design, reduces cost and improves the reliability of Project Realization.
Extraterrestrial target association error is small.The present invention captures pass using the single pass radio detection load of single exploring antenna
Note extraterrestrial target radiation signal, locus, speed data with reference to known test platform itself, it may be determined that the sky of concern
Between the relative motion relation of target emanation signal and test platform, this relative motion relation can reflect that test platform is wireless
Electrical resistivity survey is surveyed on the variation relation for the echo signal frequency that load is intercepted and captured.The target of the forecast obtained in conjunction with optical detector is moved
Track, can calculate the relative motion relation of extraterrestrial target and test platform, and this movement relation can equally reflect according to mesh
Mark original frequency calculate theoretic frequency variation relation on, contrast two kinds of movement relations similitude can distinguish it is other non-
Pay close attention to target.Test platform forms the frequency changing rule of target received signal based on the multiple frequency measurement to target emanation signal
Curve, with reference to the Space Target Motion Trajectory of forecast and three-dimensional position, the three-dimensional velocity data of test platform, utilize target emanation
Signal original frequency fcThe theoretical variation rule curve of target electromagnetic radiation signal frequency is calculated, it is bent based on above two rule
The collection of letters number and forecast extraterrestrial target k matching degrees J are detectd in the similarity of line, calculatingk；Then radiation signal and all K are calculated successively
Matching degree { the J of possible space targetk, k=0,1 ..., K-1, and find the maximum corresponding relation of matching degree and complete movement locus
With associating for radiation signal, using the feature of moving target electromagnetic radiation signal to Low Earth Orbit Space object identification, solve
Extraterrestrial target forecasts track and extraterrestrial target sample of signal, the matching of parameter, completes target emanation signal and concern extraterrestrial target
Association, solve the situation that tradition produces larger error by signal interception temporal information incident space target.
Stability is high, consumption resource is few.The present invention uses the sky of association process module test platform itself with reference to known to
Between position, speed data, it is determined that concern extraterrestrial target radiation signal and test platform relative motion relation, with reference to optics visit
The target trajectory for the forecast that device obtains is surveyed, contrast extraterrestrial target radiation signal obtains pre- with test platform, optical detector
The target trajectory of report and the similitude of two kinds of relative motion relations of test platform, distinguish other non-interesting targets.It is based on
Multiple frequency measurement to target emanation signal, the frequency variation rule curve of target received signal is formed, with reference to the space mesh of forecast
Movement locus and three-dimensional position, the three-dimensional velocity data of test platform are marked, utilizes target emanation signal original frequency fcCalculate mesh
The theoretical variation rule curve of ELECTROMAGNETIC RADIATION SIGNATURE frequency is marked, based on the similarity of above two law curve, the collection of letters is detectd in calculating
Number with forecast extraterrestrial target k matching degrees Jk；Then radiation signal and the matching degree of all K possible space targets are calculated successively
{Jk, k=0,1 ..., K-1, and the corresponding relation completion movement locus of matching degree maximum and associating for radiation signal are found, no
Traditional complicated multichannel array correction process, direction finding processing, positioning is needed to be handled with tracking, it is only necessary to receive single channel and adopt
Sample data carry out frequency measurement with associating calculating processing, you can complete the matching to extraterrestrial target with associating.Embody its engineer applied
Property it is good, stability is high, consumption resource is few the characteristics of.Engineering is applied to low rail Space Target Surveillance satellite platform, emulation experiment
Show, inventive can be good, can promote for ground space targeted surveillance system, high rail Space Target Surveillance system.
Brief description of the drawings
In order to further illustrate rather than limit the above-mentioned implementation of the present invention, optimal implementation is provided below in conjunction with the accompanying drawings
Example, so that the details and advantage of the present invention become apparent.
Fig. 1 is that Space Target Motion Trajectory associates schematic diagram of a scenario with radiation signal.
Fig. 2 is the circuit theory schematic diagram of radio detection load test platform equipment of the present invention.
Fig. 3 is that Space Target Motion Trajectory of the present invention associates schematic flow sheet with radiation signal.
Fig. 4 is the present invention relatively variation rule curve schematic diagram.
Fig. 5 is that present invention changes in contrast law curve according to Fig. 4 calculates the schematic diagram that matching degree is associated.
Embodiment
Refering to Fig. 1.Associated in Space Target Motion Trajectory with radiation signal in scene, due to test platform and extraterrestrial target
There is relative motion, doppler shift effect be present.Test platform is in same body-fixed coordinate system, the three dimensions middle position of setting
The coordinate put is sO=[x0,yO,zO]T, three dimensions speed coordinate is vO=[vxO,vyO,vzO]T, rail is moved from extraterrestrial target
The extraterrestrial target quantity of state that mark obtains, the extraterrestrial target three-dimensional space position coordinate of concern is sB=[xB,yB,zB]T, three dimensions
Speed coordinate is vB=[vxB,vyB,vzB]T.The original carrier frequency f of target in each observationc, test platform receive extraterrestrial target letter
Number frequency fm, three-dimensional position s in extraterrestrial target trajectory parametersB, three-dimensional velocity vB, test platform three-dimensional position sO, three-dimensional velocity
vORelation can be：The reception signal frequency f that ith test platform observesm i,
Wherein
In formula, c is the light velocity, and ‖ ‖ are the Euclidean norms of vector, and subscript i observes for ith, i=0,1 ..., N-1,
s0 i、
v0 iPosition vector and velocity when being observed for ith in the three dimensions of test platform, sB i、vB iObserved for ith
When
Position vector and velocity in the three dimensions of target, εiFor ith measurement noise etc., HiWhen being observed for ith
's
Doppler frequency calculates matrix, and subscript T is to seek matrix transposition.Deploy the formula (1), multiple observation is write as matrix form can
For：
In above-mentioned matrix, F=[fm 0,fm 1..., fm N-1]T, a series of reception signals containing Doppler effect are observed for n times
Carrier frequency value, H=[Hm 0,Hm 1..., Hm N-1]TDoppler frequency calculates matrix, E=[ε in being observed for n timesm 0,εm 1..., εN-1]TFor
N times observation in, each time observe when measurement noise, fm iBe expressed as frequency of the test platform ith to extraterrestrial target radiation signal
Rate measured value.Then Doppler frequency shift calculating matrix H during each measurement frequencyiFor：
The original frequency of signal is estimated that using matrix F, matrix H, estimates to obtain original frequencyCan be：
In formula, subscript T is matrix arrangement.()-1For matrix inversion operation.Formula (4) gives what is observed using test platform
Reception signal frequency F, target trajectory parameter (three-dimensional position, three-dimensional velocity), test platform parameter (three-dimensional position, three-dimensional velocity)
Calculate the original carrier frequency estimation method of target.
Based on the original carrier frequency estimated result of targetUsing test platform and contain the how general of forecast extraterrestrial target trace information
Strangle frequency displacement calculating matrix Hi, can further calculate the theoretic frequency change rule of each time of extraterrestrial target track observation time-ofday signals
Restrain the frequency change sequence F of curvee, it is：
By comparing F and frequency change sequence FeDifference, formed test platform detect receives signal and forecast extraterrestrial target rail
The measurement of mark matching or correlation.The calculation formula of the matching degree of Space Target Motion Trajectory and radiation signal is：
In formula, J is matching degree, and ‖ ‖ are the Euclidean norms of vector.If K extraterrestrial target is shared, to each extraterrestrial target
Track carries out aforesaid operations, can obtain K matching angle value, be designated as { Jk, K=0,1 ..., K-1.It is multiple by being compared to each other
The Space Target Motion Trajectory of forecast and the radiation signal received, find the maximum corresponding relation of matching degree, it is possible to based on letter
Associating to Space Target Motion Trajectory and radiation signal is realized in number measurement.
Refering to Fig. 2.According to the present invention, in the test platform of radio detection load, test platform uses single exploring antenna list
The radiation signal of passage capture concern extraterrestrial target, detection wireless electric load, the electricity of single exploring antenna reception space target emanation
Magnetic signal is output to acquisition module by radio-frequency channel to signal progress simulated frequency conversion, filtering, amplification, and acquisition module, which will receive, to be believed
The single analog signal of road output carries out modulus AD samplings and digital frequency conversion；AD sampled datas carry out two railway digital letters in FPGA
Roadization pretreatment output baseband I Q data；Association process the module locus of test platform itself, number of speed with reference to known to
According to it is determined that the relative motion relation of the extraterrestrial target radiation signal of concern and test platform, is obtained pre- with reference to optical detector
The target trajectory of report, the target that contrast extraterrestrial target radiation signal obtains forecast with test platform, optical detector are moved
Track and the similitude of two kinds of relative motion relations of test platform, distinguish other non-interesting targets.Test platform is based on to mesh
The multiple frequency measurement of radiation signal is marked, automatically forms the frequency variation rule curve of target received signal；With reference to the space mesh of forecast
Movement locus is marked, utilizes target emanation signal original frequency fcCalculate the theoretical change rule of extraterrestrial target ELECTROMAGNETIC RADIATION SIGNATURE frequency
Curve is restrained, based on the similarity of above two law curve, the collection of letters number and forecast extraterrestrial target k matching degrees J are detectd in calculatingk；Then
Radiation signal and the matching degree { J of all K possible space targets are calculated successivelyk, k=0,1 ..., K-1, and find matching degree
Maximum corresponding relation completion movement locus associates with radiation signal.
The continuity and the principle of track uniformity that association process module is moved according to target, utilize the electromagnetic signal of target emanation
I/Q data and simulated frequency conversion parameter, I/Q data is extracted with representative value at least 1s time interval, and carry out continuous several times signal and arrive
Up to frequency measurement, multiple frequency measurement is carried out to the signal for having Doppler frequency shift to change, analyzes the T/F change rule of reception signal
Restrain curve；The spatial three-dimensional position of combining target, the three-dimensional position of three-dimensional velocity predicted value and test platform and three-dimensional velocity value
Doppler frequency shift calculating matrix H is established, and to target emanation signal original frequency fcEstimated, recycle target emanation signal
Original frequency fcCalculate in multiple observation moment, target k to be f in the ELECTROMAGNETIC RADIATION SIGNATURE original transmitted frequencycUnder the conditions of theory
Frequency change sequence Fe(k) target k theoretical time-frequency variation rule curve, is obtained；Association process module is by reckoning
Target k theoretical variation rule curve contrasts above two variation rule curve compared with measuring variation rule curve
Difference, by the difference compared, difference is smaller, and matching degree is bigger.Form the extraterrestrial target that test platform detects the collection of letters number and forecast
The measurement of matching or correlation, i.e. extraterrestrial target k matching degrees Jk；All spaces can in association process module completion detection viewing field
After energy object matching degree calculates, the maximum corresponding extraterrestrial target of matching degree is found, the corresponding relation maximum by finding matching degree
Completion movement locus associates with radiation signal.
Refering to Fig. 3.The first step, test platform is by exploring antenna reception signal, by radio-frequency channel to the space mesh that receives
The electromagnetic signal progress simulated frequency conversion of mark radiation, filtering, amplification are output to acquisition module, and acquisition module will receive what channel exported
Analog signal carries out modulus AD samplings, AD sampled datas carry out the pretreatment of two-way digital channelizing, Digital Down Convert in FPGA
And export baseband I Q data.Association process module utilizes I/Q data signal and frequency conversion information after Digital Down Convert, and signal is existed
Moment T0,T1,…,TN-1N number of time-ofday signals arrival rate accurate measurement frequency is carried out, it is to receive the change of signal to obtain one group of frequency measurement result
Law curve, and with F={ fm iRepresent, wherein i=0,1,2 ..., N-1 represent ith observation, have carried out n times observation altogether.
Meanwhile association process module selects k-th of extraterrestrial target the three of above-mentioned N number of moment in K possible extraterrestrial target tracks
Position, three-dimensional velocity data are tieed up, Doppler frequency shift calculating matrix H is established according to above-mentioned formula (2), formula (3), with reference to multiple letter
Number arrival rate value, test platform with may target k three-dimensional position, three-dimensional velocity data, calculated using above-mentioned formula (4) pre-
Report extraterrestrial target k radiation signal original frequency estimates fce(k)；Radiated and believed using above-mentioned formula (5) CALCULATING PREDICTION extraterrestrial target k
Number theoretic frequency variation rule curve, and with carrier frequency value sequence Fe(k) represent that target k theoretical time-frequency changing rule is bent
Line.
Second step, test platform are obtaining the frequency variation rule curve for receiving signal and forecast extraterrestrial target k radiation letters
After number frequency theory variation rule curve, according to the similitude of above-mentioned two variation rule curve, above-mentioned formula (6) is utilized to calculate
Forecast the matching degree J of extraterrestrial target k and radiation signalk, and matching degree calculating is carried out with identical method to all targets, count
The matching degree of be possible to K target, obtain the matching degree set { J of K targetk, k=0,1 ..., K-1.
3rd step, test platform utilize all K Signal Matching degree set { J for forecasting extraterrestrial targetk, k=0,1,2 ... K-
1；Search set { JkIn target sequence number corresponding to maximum, and find corresponding target trajectory, complete target trajectory and signal
Association.
Refering to Fig. 4.In second step embodiment, test platform is using collection of letters I/Q data and frequency conversion information is detectd, with representative value extremely
Few 1s time interval extraction I/Q data, and multiple signal arrival rate frequency measurement is carried out, obtain variety disciplinarian of received signal song
Line F；The spatial three-dimensional position of combining target, the three-dimensional position of three-dimensional velocity predicted value and test platform and three-dimensional velocity value are established
Doppler frequency shift calculating matrix H, obtain possible target k signal frequency theory variation rule curve Fe(k).Two kinds of changing rules
Curve is using T/F relation curve as the difference degree of two curves characterizes possible space target k with receiving electromagnetic signal
Matching degree, plots changes are closer, be matching degree it is higher.
Refering to Fig. 5.In the 3rd step embodiment, test platform intercepts 1 extraterrestrial target by radio detection load and radiated
Electromagnetic signal, there are 2 extraterrestrial targets in radio detection load visual field, it is necessary to which the electromagnetic signal and wherein 1 target are closed
Connection.During processing, test platform is using acquisition in T0,T1,…,TN-1Reception signal intensity law curve F and possible target
0th, may the signal theory variation rule curve F of target 1e(0)、Fe(1), and by the correlation of comparing calculation variation rule curve,
It was found that the reception variation rule curve of target 1 is more than the variation rule curve phase of target 0 with theoretical variation rule curve similarity
Like degree, the target emanation signal theory changing rule of the orbit prediction gain of parameter of target 1 is close with the changing rule of reception signal
When, judge the signal and the Track association of extraterrestrial target 1, the intercepting and capturing electromagnetic signal is catalogued with extraterrestrial target 1 together with.
Above in association with accompanying drawing to the present invention have been described in detail, it is to be noted that being described by examples detailed above
Only preferred embodiment of the invention, is not intended to limit the invention, for those skilled in the art, the present invention can
There are various modifications and variations, for example specific engineering project can be combined and carry out frequency calculating, choosing from if sampling data
Changes in amplitude law curve, which is reached, with signal carries out matching degree calculating.Within the spirit and principles of the invention, that is made appoints
What modification, equivalent substitution, improvement etc., should be included within scope of the presently claimed invention.
Claims (10)
1. a kind of Space Target Motion Trajectory and radiation signal correlating method, have following technical characteristic：Carried in radio detection
In the test platform of lotus, test platform is using the radiation signal of single exploring antenna single channel capture concern extraterrestrial target, single detection
The electromagnetic signal of antenna reception space target emanation, it is defeated to electromagnetic signal progress simulated frequency conversion, filtering, amplification by radio-frequency channel
Go out to acquisition module；The single analog signal for receiving channel output is carried out modulus AD samplings and digital frequency conversion by acquisition module, defeated
Go out baseband I Q data to association process mould；Association process the module locus of test platform itself and number of speed with reference to known to
According to it is determined that the relative motion relation of the extraterrestrial target radiation signal of concern and test platform, obtains with reference to optical detector and forecasts
Target trajectory, contrast extraterrestrial target radiation signal and test platform, optical detector obtain the target motion rail of forecast
The similitude of mark relative motion relation, distinguish other non-interesting targets；Test platform is based on to the multiple of target emanation signal
Frequency measurement, the frequency variation rule curve of target received signal is automatically formed, with reference to the Space Target Motion Trajectory of forecast, utilizes mesh
Mark radiation signal original frequency fcThe theoretical variation rule curve of target electromagnetic radiation signal frequency is generated, is then based on above-mentioned two
The similarity of kind law curve, calculates the matching degree J for detecing the collection of letters number and forecasting extraterrestrial target kk；Calculate radiation signal successively again
With the matching degree of all K possible space targets, matching degree set { J is formedk, k=0,1 ..., K-1, and in the set
The maximum corresponding relation of matching degree is found, the radiation signal received is matched with paying close attention to extraterrestrial target, using moving mesh
The feature of electromagnetic radiation signal is marked to Low Earth Orbit Space object identification, completes Space Target Motion Trajectory and radiation signal
Association.
2. Space Target Motion Trajectory as claimed in claim 1 and radiation signal correlating method, it is characterised in that：Association process
The continuity and the principle of track uniformity that module is moved according to target, utilize the electromagnetic signal I/Q data of target emanation and simulation
Frequency conversion parameter, I/Q data is extracted with representative value at least 1s time interval, and carry out the measurement of continuous several times signal arrival rate, it is right
The signal for having Doppler frequency shift to change carries out multiple frequency measurement, analyzes the T/F variation rule curve of reception signal.
3. Space Target Motion Trajectory as claimed in claim 2 and radiation signal correlating method, it is characterised in that：Association process
The spatial three-dimensional position of module combining target, the three-dimensional position of three-dimensional velocity predicted value and test platform and three-dimensional velocity value are established
Doppler frequency shift calculating matrix H, and to target emanation signal original frequency fcEstimated, recycle target emanation signal original
Frequency fcCalculate in multiple observation moment, target k to be f in the ELECTROMAGNETIC RADIATION SIGNATURE original transmitted frequencycUnder the conditions of theoretic frequency
Change value sequence Fe(k) target k theoretical time-frequency variation rule curve, is obtained.
4. Space Target Motion Trajectory as claimed in claim 3 and radiation signal correlating method, it is characterised in that：Association process
By the target k of generation theoretical variation rule curve compared with measuring variation rule curve, contrast above two becomes module
The difference of law curve, by the difference compared, formed test platform detect collect mail number and the extraterrestrial target matching of forecast or
The measurement of correlation, i.e. extraterrestrial target k matching degrees Jk。
5. Space Target Motion Trajectory as claimed in claim 4 and radiation signal correlating method, it is characterised in that：Association process
After module completes the possible object matching degree calculating in all spaces in detection viewing field, the maximum corresponding extraterrestrial target of matching degree is found,
By finding the corresponding relation completion movement locus of matching degree maximum and associating for radiation signal.
6. Space Target Motion Trajectory as claimed in claim 1 and radiation signal correlating method, it is characterised in that：Association process
Module utilizes I/Q data signal and frequency conversion information after Digital Down Convert, to signal in moment T0,T1,…,TN-1Carry out N number of moment
Signal arrival rate carries out n times observation and accurate measurement frequency, and it is to receive the variation rule curve of signal to obtain one group of frequency measurement result, and
With F={ fm iRepresent, wherein, N-1 represents that ith is observed, i=0,1,2 ....
7. Space Target Motion Trajectory as claimed in claim 1 and radiation signal correlating method, it is characterised in that：Association process
Module selects three-dimensional position, three-dimensional velocity number of k-th of extraterrestrial target at N number of moment in K possible extraterrestrial target tracks
According to according to Doppler frequency shift calculating matrix H when repeatedly observing the matrix write as, each measurement frequencyiEstablish Doppler frequency shift
Calculating matrix H.
8. Space Target Motion Trajectory as claimed in claim 7 and radiation signal correlating method, it is characterised in that：Association process
Module combination multiple signal arrival rate value, test platform and possible target k three-dimensional position, three-dimensional velocity data, are calculated pre-
Report extraterrestrial target k radiation signal original frequency estimates
9. Space Target Motion Trajectory as claimed in claim 8 and radiation signal correlating method, it is characterised in that：Association process
Module utilizes the frequency change sequence F of frequency variation rule curveeCALCULATING PREDICTION extraterrestrial target k radiation signals theoretic frequency changes
Law curve, and with carrier frequency value sequence Fe(k) target k theoretical time-frequency variation rule curve is represented.
10. Space Target Motion Trajectory as claimed in claim 1 and radiation signal correlating method, it is characterised in that：Detection is flat
Platform is using acquisition in T0,T1,…,TN-1Reception signal intensity law curve F and possible target 0, the possible signal of target 1 reason
By variation rule curve Fe(0)、Fe(1), and by the correlation of comparing calculation variation rule curve, it is found that the reception of target 1 becomes
Law curve is more than the variation rule curve similarity of target 0, the orbit prediction of target 1 with theoretical variation rule curve similarity
When the target emanation signal theory changing rule of gain of parameter is close with the changing rule of reception signal, the signal and space are judged
The Track association of target 1, the intercepting and capturing electromagnetic signal is catalogued with extraterrestrial target 1 together with.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108152789A (en) * | 2018-01-03 | 2018-06-12 | 电子科技大学 | Utilize the passive track-corelation data correlation and localization method of RSS information |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108152789A (en) * | 2018-01-03 | 2018-06-12 | 电子科技大学 | Utilize the passive track-corelation data correlation and localization method of RSS information |
| CN108152789B (en) * | 2018-01-03 | 2019-11-01 | 电子科技大学 | Utilize the passive track-corelation data correlation and localization method of RSS information |
| CN110441731A (en) * | 2019-07-27 | 2019-11-12 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Narrow band electromagnetic radiation source object localization method |
| CN111444476A (en) * | 2020-03-24 | 2020-07-24 | 中国人民解放军32035部队 | Spatial target track association method |
| CN111444476B (en) * | 2020-03-24 | 2021-12-28 | 中国人民解放军32035部队 | Spatial target track association method |
| CN112346096A (en) * | 2020-11-10 | 2021-02-09 | 中国人民解放军海军航空大学 | High-low orbit remote sensing satellite ship target track and point track correlation method and system |
| CN112346096B (en) * | 2020-11-10 | 2022-04-22 | 中国人民解放军海军航空大学 | High-low orbit remote sensing satellite ship target track and point track correlation method and system |
| CN114460578A (en) * | 2022-02-11 | 2022-05-10 | 北京博识广联科技有限公司 | Radiation source screening method based on multi-dimensional signals |
| CN114859114A (en) * | 2022-07-06 | 2022-08-05 | 成都戎星科技有限公司 | Signal target association method for monitoring low-orbit space target based on low-orbit monitoring satellite |
| CN116359849A (en) * | 2023-06-01 | 2023-06-30 | 中国人民解放军国防科技大学 | Method and system for associating passive interception and interception of moving radar targets |
| CN116359849B (en) * | 2023-06-01 | 2023-08-04 | 中国人民解放军国防科技大学 | Method and system for associating passive interception and interception of moving radar targets |
| CN117454199A (en) * | 2023-12-20 | 2024-01-26 | 北京数原数字化城市研究中心 | Track association method, system, electronic device and readable storage medium |
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