CN106125053B - Pulse Doppler radar polarization anti jamming method - Google Patents
Pulse Doppler radar polarization anti jamming method Download PDFInfo
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- CN106125053B CN106125053B CN201610431994.1A CN201610431994A CN106125053B CN 106125053 B CN106125053 B CN 106125053B CN 201610431994 A CN201610431994 A CN 201610431994A CN 106125053 B CN106125053 B CN 106125053B
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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
- G01S7/36—Means for anti-jamming, e.g. ECCM, i.e. electronic counter-counter measures
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Abstract
The invention proposes a kind of pulse Doppler radar polarization anti jamming methods under complex jamming environment.The rejection ability for a variety of interference such as chaff, active suppressing and deception is improved using this method with can dramatically, realize and target effective is detected.The technical scheme is that: input radar dual polarization echo-signal decides whether to carry out polarization there are the interference of active pressing type when there is compacting interference and offset；Then the echo signal walking time between the pulse of front and back is calculated, Range Walk Correction is carried out to pulse train；Correlative accumulation is made to dual polarization channel again, and zero-frequency is moved on into spectral centroid, channel number of the lock onto target in Doppler-in two-dimensional matrix, and target two-dimensional tracking wave door is set, makees two-dimentional CFAR detection in tracking gate；The detection judgement of target polarization ratio is finally carried out, the signal by detection judgement, output is as the echo signal after AF panel, to improve the correct detection probability to target.
Description
Technical field
The present invention relates to radar detection field Anti-Jamming Techniques, more particularly, to dry in chaff, active suppressing and deception etc.
To the anti-interference method of target effective detection in the case of disturbing.
Background technique
Pulse Doppler radar is the arteries and veins that target is detected using Doppler effect caused by radar and target relative movement
Rush radar.Since the radar can effectively inhibit land clutter, be widely used in the motion platforms such as airborne, missile-borne code acquisition and
Recognition and tracking target.With the continuous development of perturbation technique, pulse Doppler radar face the electronic interferences that become increasingly complex and
Natural disturbance environment significantly reduces detection performance.How radar under complex electromagnetic environment effective anti-interference and reliable inspection is improved
Survey ability guarantees the true and false and precision of detection target, it has also become one of the research hotspot in the domestic and international field.
Which can be roughly divided into two types for the type of radar chaff: sourceless seism and active interference.Sourceless seism refers to radar
Other objects other than the target of detection are miscellaneous to the radar echo signal reached after the generation scattering of radar emission signal, including atural object
Wave, sea clutter, chaff etc.；Active interference refers to the electromagnetic signal that observing environment natural radiation or enemy deliberately emit, such as active
Compacting interference, distance and velocity gate deception formula etc..Radar jamming device is to intercept and capture radar detection in remote upper discovery radar first
Pulse analyzes radar signal parameter, then emits or forward various passive and active interference, flood radar target signal
Not among interference, make radar can not detection and tracking target.And the purpose of Radar cross-section redaction is to inhibit interference, reduce interference shadow
It rings, in time, accurately obtains target information.
Pulse Doppler radar uses the method clutter reduction detected based on moving-target, obtains in Radar cross-section redaction relatively wide
General application.When target is different relative to the movement velocity of radar with interference, the Doppler frequency that the two generates is not also identical,
Doppler filter group, filtering clutter and interference signal is arranged in pulse Doppler radar, to Doppler's frequency of target echo signal
Rate, which carries out detection, can extract echo signal.Polarization radar feature reflects target to polarization of electromagnetic wave scattering properties, with target
The factors such as shape, material, posture it is related, therefore can use the Polarization scattering echo difference of target and interference, inhibit interference
Echo-signal enhances target echo signal, and feature is extracted in polarizing field, realizes classification and detection identification target.
Currently, Radar cross-section redaction algorithm specifically includes that the Waveform Matching recognition methods of (1) radar target；(2) target is special
Sign is extracted and classifying identification method.Method (1) needs to establish the echo waveform prior information of target or interference, is received using radar
Signal and prior information carry out match cognization, achieve the purpose that distinguish target and interference, however since targeted attitude sensibility is drawn
It is big to play radar bobbing, causes correct recognition rata not high, stability is bad, and engineering practicability is not strong；Method (2) utilizes
Target and interference echo statistical property difference extract the statistical natures such as mean value, variance, related coefficient, using classifying identification method
Detection identification is carried out to target, such engineer application is more, but some features are changed greatly with the influence of detection environment, difficult point
It is to select the validity feature of difference target and interference.In addition, the above method is often effective just for a kind of interference type, when
When a variety of interference exist simultaneously, effective target detection cannot be reached.
Summary of the invention
The purpose of the present invention is for the interference such as chaff, active suppressing and deception, provide a kind of effectively to inhibit to interfere, mention
The pulse Doppler radar polarization anti jamming method of high target detection probability.
In order to achieve the above object, the present invention proposes that a kind of pulse Doppler radar polarization anti jamming method, feature exist
In including the following steps: in terminal processes extension set DSP embedded software, with dual polarization channel processing module, pulse train school
Positive module, pulse Doppler processing module, same polarization channel two-dimensional detection module and target polarization judging module are building unit
Pulse Doppler radar polarization anti jamming software architecture, wherein dual polarization channel processing module reads in radar dual polarization echo letter
Number, first make cross polarization channel compensation, statistical signal power maximum value and receiver noise power, decides whether that there are active pressures
Standard interference carries out dual polarization interchannel when there is compacting interference and offsets；Pulse train correction module obtains diameter using tracking
Calculate the echo signal walking time between former and later two pulses to speed, on the basis of first pulse, to other pulses into
Row distance is walked about correction；Pulse Doppler processing module makees coherent product to M pulse train of same polarization and cross polarization channel
It is tired, and zero-frequency is moved on into spectral centroid；Same polarization channel two-dimensional detection module calculates Doppler frequency, locking using radial velocity
Channel number of the target in Doppler-in two-dimensional matrix, and target two-dimensional tracking wave door is set, make two dimension in tracking gate
CFAR detection；Target polarization judging module calculates the polarization ratio of useful signal sequence sets, carries out polarization ratio inspection to polarization ratio
Judgement is surveyed, by the signal of polarization ratio detection judgement, is exported as the echo signal after AF panel.
The present invention has the following beneficial effects: compared with the prior art
The present invention can effectively inhibit to interfere.For interference sources such as chaff, active suppressing and deceptions, the present invention provides
AF panel and target detection recognition methods, and provide a set of with dual polarization channel processing module, pulse train correction module, arteries and veins
Rushing Doppler processing block, same polarization channel two-dimensional detection module and target polarization judging module is building unit pulse Doppler
Polarization radar Anti-interference Software Based framework and complete process flow.Show that this method can effectively press down by test data analyzer
System interference, improves target correct detection probability, has stronger engineering practical value.
The loss of echo signal caused by polarization offsets when the present invention can prevent no pressing type from interfering.The present invention is using first
Make cross polarization channel compensation, statistical signal power maximum value and receiver noise power, decides whether that there are active pressing types
Interference just carries out dual polarization interchannel when there is compacting interference and offsets.
The present invention can improve target detection probability.For weak dependence of the decoy jamming in pulse-recurrence time sequence,
The present invention is handled using correlative accumulation, can effectively improve signal interference ratio, is detected convenient for succeeding target；Utilize target following estimation
Position and Doppler frequency, can channel number with lock onto target in Doppler-in two-dimensional matrix, target two-dimensional tracking is set
Wave door rejects the interference of wave outdoors；Consider to be likely present interference in tracking gate, calculate polarization ratio feature, carries out target pole
Change than judgement, effectively inhibits the interference of Bo Mennei, further increase to target correct detection probability.
The present invention correctly detects identification for realization radar to target under complex jamming environment and provides solution and heavily fortified point
Real basis.
Detailed description of the invention
For a clearer understanding of the present invention, now by drawings and examples, the present invention is further elaborated, in which:
Fig. 1 is pulse Doppler radar polarization anti jamming flow chart of the present invention.
Fig. 2 is the flow chart of dual polarization channel processing module in Fig. 1.
Fig. 3 is the flow chart of same polarization channel two-dimensional detection module in Fig. 1.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
Refering to fig. 1.In the embodiment described below, the whole flow process of pulse Doppler radar polarization anti jamming method is adopted
In terminal processes extension set, realized automatically based on DSP embedded software mode.In terminal processes extension set DSP embedded software
In, with dual polarization channel processing module, pulse train correction module, pulse Doppler processing module, the inspection of same polarization channel two dimension
Surveying module and target polarization judging module is building unit pulse Doppler radar polarization anti jamming software architecture, wherein (S1)
Dual polarization channel processing module reads in radar dual polarization echo-signal, first makees cross polarization channel compensation, statistical signal power is most
Big value and receiver noise power decide whether that dual polarization need to be carried out when there is compacting interference there are the interference of active pressing type
Interchannel offsets；(S2) pulse train correction module obtains radial velocity using tracking and calculates the target between former and later two pulses
Signal walking time carries out Range Walk Correction to other pulses on the basis of first pulse；(S3) pulse Doppler processing
Module makees correlative accumulation to the M pulse train in same polarization and cross polarization channel, and zero-frequency is moved on to spectral centroid；(S4) same
POLARIZATION CHANNEL two-dimensional detection module calculates Doppler frequency using radial velocity, and lock onto target is in Doppler-apart from two-dimensional matrix
In channel number, and target two-dimensional tracking wave door is set, makees two-dimentional CFAR detection in tracking gate；(S5) target polarization is sentenced
Certainly module calculates the polarization ratio of useful signal sequence sets, carries out polarization ratio detection judgement to polarization ratio, is detected by polarization ratio
The signal of judgement, output realize the reliable detection to target as the echo signal after AF panel.
Each module comprises the concrete steps that:
Refering to Fig. 2.In the processing of dual polarization channel, dual polarization channel processing module is intersected for difference between channels
POLARIZATION CHANNEL compensation, compensated cross polarization channel complex signal sXY(n)
In formula,For n-th of unit complex signal of signal sampling of cross polarization channel XY, AcAnd φcFor with same polarization
The matched amplitude and phase correction coefficient in channel.Wherein, complex signal s=I+jQ, I and Q are respectively the orthogonal letter of signal sampling two-way
Number.
Dual polarization channel processing module counts receiver noise power when radar does not emit
In formula, IrAnd QrThe respectively road two-way I of receiver noise and the road Q orthogonal signalling, N are noise statistics sample number.
Dual polarization channel processing module chooses the target or interference echo signal in same polarization channel in radar emission
Power maximum value PMax
In formula,For n-th of unit complex signal of signal sampling of same polarization channel XX, max is to choose sampled signal
The maximum value of power.Wherein, signal power valueIXXAnd QXXRespectively the two-way in same polarization channel is being just
Hand over signal.
Dual polarization channel processing module is sentenced using target or interference echo signal power maximum value and receiver noise power
Certainly interfered with the presence or absence of active suppressing formula
IfThen judgement is without compacting interference
IfThen judgement is interfered to have to suppress
Wherein,It indicates with 10 to be bottomLogarithm, SNR0It is real for the normal echo signal-to-noise ratio of radar target
Border can determine when using according to parameters such as radar transmission power, target ranges.
When there is compacting interference, dual polarization channel processing module need to carry out dual polarization interchannel and offset
In formula, sXX(n) the same polarization channel complex signal after being offseted for polarization.
In pulse train correction, pulse train correction module obtains radial velocity using tracking and calculates former and later two pulses
Between echo signal walking time τ
In formula, VtFor the radial velocity of target and radar, TrFor radar transmitted pulse repetition interval, c is electromagnetic wave biography
Broadcast speed.
Pulse Doppler processing module sets accumulation pulse echo number as M, same polarization channel and cross polarization channel
Pulse train on the basis of first pulse, to other pulses carry out Range Walk Correction
hXX(l, n)=sXX(l,n-(l-1)τ)
hXY(l, n)=sXY(l,n-(l-1)τ)
In formula, sXX(l, n- (l-1) τ) and sXY(l, n- (l-1) τ) respectively indicates the l of same polarization and cross polarization channel
A pulse and n-th of distance unit signal are delayed (l-1) τ, h on Range ProfileXX(l, n) and hXYAfter (l, n) respectively indicates correction
First of pulse of same polarization and cross polarization channel and n-th of distance unit signal.In order to save calculation amount, pulse Doppler
Processing module can carry out delay compensation in frequency.
In pulse Doppler processing, M pulse of the pulse Doppler processing module to same polarization and cross polarization channel
The same distance unit signal of sequence makees discrete Fourier transform and carries out correlative accumulation
In formula,WithSame polarization and cross polarization after respectively indicating pulse Doppler processing is logical
M-th of road doppler cells and n-th of distance unit signal.
Zero-frequency is moved on to spectral centroid to the signal after making discrete fourier variation by pulse Doppler processing module
In formula,It indicates to carry out half number of segment of front and back to all doppler cells of n-th of distance unit
According to exchange.
Refering to Fig. 3.In the two-dimensional detection of same polarization channel, same polarization channel two-dimensional detection module inputs same polarization channel two
Dimensional signal estimates V using target and the radial velocity of radart, calculate by relative motion cause echo-signal there are Doppler frequency
Rate
In formula, fdFor target Doppler frequency, λ is the operation wavelength of radar emission signal.
Same polarization channel two-dimensional detection module utilizes the position R of target following estimationtWith Doppler frequency fdLock onto target exists
Channel number (i of the Doppler-in two-dimensional matrix0,j0)
i0=fix (2MfdTr)
In formula, M is accumulation pulse train number, TrFor radar transmitted pulse repetition interval, TsFor signal sampling period,
RstartIt is impulse sampling apart from starting point, c is propagation velocity of electromagnetic wave, and fix () indicates rounding operation.
Same polarization channel two-dimensional detection module assumes target Doppler spectrum widening LfUnit, radical length account for LrUnit then exists
In same polarization channel with Doppler-in two-dimensional matrix (i0,j0) centered on, set target Doppler and apart from two dimension with
Track wave door, and wave door internal channel number (i, j) needs to meet
Same polarization channel two-dimensional detection module chooses K unit as background sample around target two-dimensional tracking wave door,
The Criterion of Selecting of background sample number K is: with the statistical distribution parameter of more background sample numbers estimation background, but should not be too big, not so
It will increase system-computed amount.
Same polarization channel two-dimensional detection module assumes background Gaussian distributed, with false-alarm probability PfaDetermine detection threshold
μ0, two-dimentional CFAR detection is carried out to the two-dimensional tracking Bo Mennei signal of target Doppler and distance
If | HXX(i,j)|≥μ0, then judgement is useful signal
If | HXX(i, j) | < μ0, then judgement is ambient noise
Wherein,IXXAnd QXXThe two-way of respectively same polarization channel XX is orthogonal
The sampled value of signal.Same polarization channel two-dimensional detection module exports the unit that judgement is useful signal as useful signal sequence
Collect { HXX(i', j') }, wherein may have from interference, the judgement verifying of next step polarization ratio need to be made.
Claims (10)
1. a kind of pulse Doppler radar polarization anti jamming method, it is characterised in that include the following steps: in terminal processes extension set
In DSP embedded software, with dual polarization channel processing module, pulse train correction module, pulse Doppler processing module, homopolarity
Changing channel two-dimensional detection module and target polarization judging module is building unit pulse Doppler radar polarization anti jamming software frame
Structure, wherein dual polarization channel processing module reads in radar dual polarization echo-signal, first makees cross polarization channel compensation, statistics letter
Number power maximum value and receiver noise power decide whether to carry out there are the interference of active pressing type when there is compacting interference
Dual polarization interchannel offsets；Pulse train correction module obtains radial velocity using tracking and calculates the mesh between former and later two pulses
Signal walking time is marked, on the basis of first pulse, Range Walk Correction is carried out to other pulses；Pulse Doppler processing mould
Block makees correlative accumulation to the M pulse train in same polarization and cross polarization channel, and zero-frequency is moved on to spectral centroid；Same polarization is logical
Road two-dimensional detection module calculates Doppler frequency using radial velocity, and lock onto target is logical in two-dimensional matrix in Doppler-
Taoist monastic name, and target two-dimensional tracking wave door is set, make two-dimentional CFAR detection in tracking gate；Target polarization judging module calculates
The polarization ratio of useful signal sequence sets carries out polarization ratio detection judgement to polarization ratio, the signal of judgement is detected by polarization ratio,
Output is as the echo signal after AF panel.
2. pulse Doppler radar polarization anti jamming method as described in claim 1, it is characterised in that: the processing of dual polarization channel
Module carries out cross polarization channel compensation, compensated cross polarization channel complex signal s for difference between channelsXY(n)
In formula,For n-th of unit complex signal of signal sampling of cross polarization channel XY, AcAnd φcFor with same polarization channel
Matched amplitude and phase correction coefficient.
3. pulse Doppler radar polarization anti jamming method as described in claim 1, it is characterised in that: the processing of dual polarization channel
Module counts receiver noise power when radar does not emit
In formula, IrAnd QrThe respectively road two-way I of receiver noise and the road Q orthogonal signalling, N are noise statistics sample number.
4. pulse Doppler radar polarization anti jamming method as described in claim 1, it is characterised in that: the processing of dual polarization channel
Module chooses the target or interference echo signal power maximum value P in same polarization channel in radar emissionMax
In formula,For n-th of unit complex signal of signal sampling of same polarization channel XX, max is to choose sampled signal power
Maximum value.
5. pulse Doppler radar polarization anti jamming method as described in claim 1, it is characterised in that: the processing of dual polarization channel
Module utilizes target or interference echo signal power maximum value PMaxWith receiver noise powerDecide whether that there are active pressures
Standard interference
IfThen judgement is without compacting interference
IfThen judgement is interfered to have to suppress
Wherein,It indicates with 10 to be bottomLogarithm, SNR0For the normal echo signal-to-noise ratio of radar target, actually make
Used time can determine according to parameters such as radar transmission power, target ranges.
6. pulse Doppler radar polarization anti jamming method as described in claim 1, it is characterised in that: same polarization channel two dimension
Detection module utilizes the position R of target following estimationtWith Doppler frequency fdLock onto target is in Doppler-in two-dimensional matrix
Channel number (i0,j0)
i0=fix (2MfdTr)
In formula, M is accumulation pulse train number, TrFor radar transmitted pulse repetition interval, TsFor signal sampling period, Rstart
It is impulse sampling apart from starting point, c is propagation velocity of electromagnetic wave, and fix () indicates rounding operation.
7. pulse Doppler radar polarization anti jamming method as claimed in claim 6, it is characterised in that: same polarization channel two dimension
Detection module assumes target Doppler spectrum widening LfUnit, radical length account for LrUnit, then with Doppler-in same polarization channel
(the i in two-dimensional matrix0,j0) centered on, set the Doppler of target and apart from two-dimensional tracking wave door, and wave door internal channel number
(i, j) needs to meet
8. pulse Doppler radar polarization anti jamming method as described in claim 1, it is characterised in that: same polarization channel two dimension
Detection module assumes background Gaussian distributed, with false-alarm probability PfaDetermine detection threshold μ0, to target Doppler and distance
Two-dimensional tracking Bo Mennei signal carries out two-dimentional CFAR detection
If | HXX(i,j)|≥μ0, then judgement is useful signal
If | HXX(i, j) | < μ0, then judgement is ambient noise
Wherein,IXXAnd QXXThe respectively two-way orthogonal signalling of same polarization channel XX
Sampled value, wherein (i, j) is wave door internal channel number.
9. pulse Doppler radar polarization anti jamming method as claimed in claim 8, it is characterised in that: same polarization channel two dimension
Detection module exports the unit that judgement is useful signal as useful signal sequence sets { HXX(i',j')}。
10. pulse Doppler radar polarization anti jamming method as claimed in claim 9, it is characterised in that: target polarization ratio is sentenced
The certainly probability density function of module statistics target polarization ratio, determines polarization ratio thresholding ξ with certain target detection probability0, to having
Polarization ratio detection judgement is carried out with the polarization ratio of signal sequence collection
If ξ (k) >=ξ0, then judgement is target
If ξ (k) < ξ0, then judgement is interference
Wherein, ξ (k) is k-th of Element Polarization ratio in useful signal sequence sets.
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| CN113759324B (en) * | 2021-07-21 | 2024-01-30 | 西安电子科技大学 | Countermeasure method based on foil interference actual measurement data |
| CN117724056B (en) * | 2024-02-18 | 2024-04-09 | 中国科学院地质与地球物理研究所 | Method and system for removing interference of space target detected by incoherent scattering radar |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5027123A (en) * | 1989-06-26 | 1991-06-25 | Simon Haykin | Adaptive interference canceller |
| EP0701144A1 (en) * | 1994-09-06 | 1996-03-13 | Rockwell International Corporation | Radar terrain bounce jamming detector |
| CN102495394A (en) * | 2011-12-06 | 2012-06-13 | 中国人民解放军国防科学技术大学 | Polarization suppression processing method for radar mainlobe interference |
| CN102955151A (en) * | 2012-10-09 | 2013-03-06 | 中国人民解放军63892部队 | Adaptive cross-polarization active jamming method and device |
| CN103941239A (en) * | 2014-05-08 | 2014-07-23 | 西安电子科技大学 | Method for offsetting and inhibiting main lobe pressing interference through networked radar polarization |
| CN104215938A (en) * | 2014-09-30 | 2014-12-17 | 中国人民解放军63892部队 | Polarization detection and recognition method and device for terrain rebound interference |
| CN104765020A (en) * | 2015-04-12 | 2015-07-08 | 西安电子科技大学 | Active false target jamming polarization discrimination method |
-
2016
- 2016-06-17 CN CN201610431994.1A patent/CN106125053B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5027123A (en) * | 1989-06-26 | 1991-06-25 | Simon Haykin | Adaptive interference canceller |
| EP0701144A1 (en) * | 1994-09-06 | 1996-03-13 | Rockwell International Corporation | Radar terrain bounce jamming detector |
| CN102495394A (en) * | 2011-12-06 | 2012-06-13 | 中国人民解放军国防科学技术大学 | Polarization suppression processing method for radar mainlobe interference |
| CN102955151A (en) * | 2012-10-09 | 2013-03-06 | 中国人民解放军63892部队 | Adaptive cross-polarization active jamming method and device |
| CN103941239A (en) * | 2014-05-08 | 2014-07-23 | 西安电子科技大学 | Method for offsetting and inhibiting main lobe pressing interference through networked radar polarization |
| CN104215938A (en) * | 2014-09-30 | 2014-12-17 | 中国人民解放军63892部队 | Polarization detection and recognition method and device for terrain rebound interference |
| CN104765020A (en) * | 2015-04-12 | 2015-07-08 | 西安电子科技大学 | Active false target jamming polarization discrimination method |
Non-Patent Citations (2)
| Title |
|---|
| 对雷达导引头的极化域电磁干扰机理与仿真;戴幻尧 等;《强激光雨粒子束》;20151031;第27卷(第10期);103241-1-103241-6 |
| 雷达极化抗干扰技术进展;施龙飞 等;《现代雷达》;20160430;第38卷(第4期);1-7 |
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