CN106507891B - A kind of composite wave-shape radar guidance method - Google Patents
A kind of composite wave-shape radar guidance methodInfo
- Publication number
- CN106507891B CN106507891B CN201110010924.6A CN201110010924A CN106507891B CN 106507891 B CN106507891 B CN 106507891B CN 201110010924 A CN201110010924 A CN 201110010924A CN 106507891 B CN106507891 B CN 106507891B
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Abstract
The invention belongs to radar detection guidance technology, is related to a kind of composite wave-shape radar guidance method.Composite wave-shape radar guidance method of the present invention is based on HPRF PD waveforms, Chirp waveforms, three kinds of waveforms of Chirp_Step Frequency waveforms, by the comprehensive analysis to concrete operational environment and corresponding echo-signal, according to certain selection strategy, select the best effort waveform that will launch, switched by between target seeker software control realization work wave, according to work schedule circular treatment, i.e., in whole working stage, judged by the analysis of target seeker, real-time selection best effort waveform is launched.The present invention makes radar seeker that there is higher battlefield adaptability, more preferably noiseproof feature, realizes that absolutely empty, vacant lot multipurpose is attacked.According to different operational environment information switch operating waveforms, target seeker is made to reach the detection of maximum, tracking performance.
Description
Technical field
The invention belongs to radar detection guidance technology, it is related to a kind of composite wave-shape radar guidance method.
Background technology
With the increasingly complexity of modern battlefield environment and developing rapidly for information processing capability, active
Radar seeker faces more stern challenge.It is required that the active homing guiding head system of a new generation is severe
Weather conditions and complicated battlefield surroundings under can normal work, recognize decoy, overcome clutter
And the interference of electronic countermeasures means.In this context, the single waveform of single system of prior art
Active homing technology can not be well adapted for the demand of modern battlefield, it is necessary to consider a variety of
The application of waveform system simultaneously on target seeker, and optimum combination between each waveform is studied, so that guiding
Head reaches the detection of maximum, tracking performance.
The content of the invention
The purpose of the present invention is：Deficiency for prior art radar guidance technology is carried there is provided one kind
High target seeker makes target seeker have more preferable anti-interference the detection performance and ability of tracking of target
The composite wave-shape radar guidance method of energy and more preferable battlefield surroundings adaptability.
The technical scheme is that：A kind of composite wave-shape radar guidance method, comprises the following steps：
Step 1. determines composite wave-shape,
Determine taken composite wave-shape, including HPRF PD waveforms, Chirp waveforms, Chirp_Step
Frequency waveforms, determine the waveform parameter of above-mentioned three kinds of waveforms；
The integrated treatment analysis of step 2. radar seeker,
The specific environment information and radar echo signal to outside input are received, by radar seeker
Integrated treatment analysis is carried out, according to certain selection strategy, the best effort that will launch is selected
Waveform；
Switch between step 3. different wave,
By switching between radar seeker control realization different wave, according to work schedule circular treatment,
In whole working stage, judged by the analysis of target seeker, real-time selection best effort waveform is carried out
Transmitting, wherein waveform selection switchover policy includes but is not limited to following several：
1) forward hemisphere attacks, it is remote under the conditions of, to realize no clutter area detection, selection uses HPRF
PD work waves；
2) close attacks, it is desirable to obtain high resolution range under conditions of data transmission rate is very high simultaneously
Information, and to Doppler frequency shift it is insensitive when, under the conditions of middle repetition use Chirp work waves；
3) increases the time width and bandwidth of subpulse in the case where resolution ratio of keeping at a distance is constant, to increase
Big maximum radar range, while system data transfer rate is improved, reduces identical speed feelings
The target range walk brought of motion and the pseudo- peak of target under condition, with reference to linear frequency modulation and frequency step
Advantage, uses Chirp_Step Frequency work waves under the conditions of middle repetition；
According to above-mentioned waveform selection switchover policy, HPRF PD work waves, Chirp are realized
Work wave and the mutual real-time switching of Chirp_Step Frequency work waves.
It is an advantage of the invention that：Composite wave-shape radar guidance method of the present invention passes through to specific operation ring
Border and the comprehensive analysis of corresponding echo-signal, according to certain selection strategy, what selection will launch
Best effort waveform, old complaint reaches target seeker according to different operational environment information switch operating waveforms
Maximum detection, tracking performance, so that with stronger battlefield adaptability and more preferably anti-interference
Characteristic, realizes absolutely empty, vacant lot multipurpose attack.
Brief description of the drawings
Fig. 1 is the schematic diagram of composite wave-shape radar guidance method of the present invention.
Embodiment
The present invention is described in further details below by embodiment.
Referring to Fig. 1, it is the schematic diagram of composite wave-shape radar guidance method, given in figure compound
The implementation process of waveform radar guidance method；Radar seeker receives the environment letter of outside input first
Breath and echo-signal, the optimal work that will launch by the integrated treatment analysis selection of radar seeker
Make waveform, then by target seeker waveform control instruction realize HPRF PD waveforms, Chirp waveforms,
The control switching of three kinds of waveforms of Chirp_Step Frequency waveforms.According to specific control instruction,
Radar seeker launches corresponding work wave, and according to work schedule circular treatment.
The specific implementation process of composite wave-shape radar guidance method of the present invention is given below：
Step 1. determines composite wave-shape,
The composite wave-shape that present embodiment is taken includes Gao Zhongying pulse Doppler waveform (HPRF
PD), Stepped chirp waveform (Chirp), frequency modulation Step Frequency waveform (Chirp_Step Frequency)
Three kinds of work waves, determine the specific waveform parameter of above-mentioned three kinds of waveforms, including three kinds of waveform conditions
Under respective impulse ejection frequency, transmitted pulse width, Chirp work wave subpulse bandwidth and pulse are adjusted
Slope processed, frequency modulation instant bandwidth and step frequency of Chirp_Step Frequency work waves etc.；
The integrated treatment analysis of step 2. radar seeker,
The specific environment information and radar echo signal to outside input are received, by radar seeker
Integrated treatment analysis is carried out, according to certain selection strategy, the best effort that will launch is selected
Waveform；
Switch between step 3. different wave,
By switching between radar seeker control realization different wave, in whole working stage, by leading
The analysis of leader judges that real-time selection best effort waveform is launched,
Wherein waveform selection switchover policy (i.e. select and switch use identical strategy) include but
It is not limited to following several：
1) forward hemisphere attacks, it is remote under the conditions of, to realize no clutter area detection, selection uses HPRF
PD work waves；
2) close attacks, it is desirable to obtain high resolution range under conditions of data transmission rate is very high simultaneously
Information, and to Doppler frequency shift it is insensitive when, under the conditions of middle repetition use Chirp work waves；
3) increases the time width and bandwidth of subpulse in the case where resolution ratio of keeping at a distance is constant, to increase
Big maximum radar range, while system data transfer rate is improved, reduces identical speed feelings
The target range walk brought of motion and the pseudo- peak of target under condition, with reference to linear frequency modulation and frequency step
Advantage, uses Chirp_Step Frequency work waves under the conditions of middle repetition；
According to above-mentioned waveform selection switchover policy, HPRF PD work waves, Chirp are realized
Work wave and the mutual real-time switching of Chirp_Step Frequency work waves.Wherein,
Many waveform compatible signals realize multiple waveforms system with information processing system using unified hardware platform
Compatibility, the high speed of data signal, processing in real time are realized using high-speed dsp, FPGA, and to it
The variable real-time control of his extension set；The output of high speed analog signal is realized using DDS chips, is met
System compact, digitlization, highly reliable requirement.
Composite wave-shape radar guidance method of the present invention passes through to specific operational environment and accordingly in summary
The comprehensive analysis of echo-signal, according to certain selection strategy, selects the best effort that will launch
Control between waveform, the composite wave-shape that worked by target seeker software control realization switches, during according to work
Sequence circular treatment, i.e., in whole working stage, judge that real-time selection is most by the analysis of target seeker
Good work wave is launched.The present invention gives full play to according to the detection recognition point of different wave
The advantage of various waveforms, according to different operational environments, by switching in real time between waveform, is effectively improved
The detection tracking performance and interference free performance of radar seeker, make target seeker reach maximum detection,
Tracking performance, with stronger battlefield adaptability, more preferably noiseproof feature, can realize it is absolutely empty,
Vacant lot multipurpose attack.
Claims (1)
1. a kind of composite wave-shape radar guidance method, it is characterised in that comprise the following steps：
Step 1. determines composite wave-shape,
Determine taken composite wave-shape, including HPRF PD waveforms, Chirp waveforms, Chirp_Step
Frequency waveforms, determine the waveform parameter of above-mentioned three kinds of waveforms；
The integrated treatment analysis of step 2. radar seeker,
The specific environment information and radar echo signal to outside input are received, by radar seeker
Integrated treatment analysis is carried out, according to certain selection strategy, the best effort that will launch is selected
Waveform；
Switch between step 3. different wave,
By switching between radar seeker control realization different wave, according to work schedule circular treatment,
In whole working stage, judged by the analysis of target seeker, real-time selection best effort waveform is carried out
Transmitting,
Wherein waveform selection switchover policy includes but is not limited to following several：
1) forward hemisphere attacks, it is remote under the conditions of, to realize no clutter area detection, selection uses HPRF
PD work waves；
2) close attacks, it is desirable to obtain high resolution range under conditions of data transmission rate is very high simultaneously
Information, and to Doppler frequency shift it is insensitive when, under the conditions of middle repetition use Chirp work waves；
3) increases the time width and bandwidth of subpulse in the case where resolution ratio of keeping at a distance is constant, to increase
Big maximum radar range, while system data transfer rate is improved, reduces identical speed feelings
The target range walk brought of motion and the pseudo- peak of target under condition, with reference to linear frequency modulation and frequency step
Advantage, uses Chirp_Step Frequency work waves under the conditions of middle repetition；
According to above-mentioned waveform selection switchover policy, HPRF PD work waves, Chirp are realized
Work wave and the mutual real-time switching of Chirp_Step Frequency work waves.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106507891B true CN106507891B (en) | 2014-02-26 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109143178A (en) * | 2018-08-02 | 2019-01-04 | 西安电子工程研究所 | A kind of position fast adaptation method of ground radar application |
| CN109254268A (en) * | 2018-10-17 | 2019-01-22 | 北京无线电测量研究所 | Radar waveform parametric control method and system |
| CN110261840A (en) * | 2019-07-11 | 2019-09-20 | 中国航空工业集团公司雷华电子技术研究所 | A kind of quasi- high pulse repetition frequency radar waveform group and its signal processing method |
| CN107144834B (en) * | 2017-05-23 | 2019-10-22 | 哈尔滨工业大学 | A kind of waveform design method of high repetition pulse radar extension ranging range |
| CN111045003A (en) * | 2019-12-19 | 2020-04-21 | 航天恒星科技有限公司 | Active and passive radar composite seeker processor system based on VPX framework |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107144834B (en) * | 2017-05-23 | 2019-10-22 | 哈尔滨工业大学 | A kind of waveform design method of high repetition pulse radar extension ranging range |
| CN109143178A (en) * | 2018-08-02 | 2019-01-04 | 西安电子工程研究所 | A kind of position fast adaptation method of ground radar application |
| CN109254268A (en) * | 2018-10-17 | 2019-01-22 | 北京无线电测量研究所 | Radar waveform parametric control method and system |
| CN110261840A (en) * | 2019-07-11 | 2019-09-20 | 中国航空工业集团公司雷华电子技术研究所 | A kind of quasi- high pulse repetition frequency radar waveform group and its signal processing method |
| CN111045003A (en) * | 2019-12-19 | 2020-04-21 | 航天恒星科技有限公司 | Active and passive radar composite seeker processor system based on VPX framework |
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| Date | Code | Title | Description |
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| GR03 | Grant of secret patent right | ||
| DC01 | Secret patent status has been lifted | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140226 Termination date: 20180422 |