CN109326172A - A kind of Radar Proficiency Simulator based on model framework - Google Patents
A kind of Radar Proficiency Simulator based on model framework Download PDFInfo
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- CN109326172A CN109326172A CN201811503973.1A CN201811503973A CN109326172A CN 109326172 A CN109326172 A CN 109326172A CN 201811503973 A CN201811503973 A CN 201811503973A CN 109326172 A CN109326172 A CN 109326172A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B9/00—Simulators for teaching or training purposes
- G09B9/54—Simulation of radar
Abstract
The invention discloses a kind of Radar Proficiency Simulators based on model framework, including electromagnetic environment model, radar parameter model, radar operation response model, central processing model, radar return generation module, data processing module and display module, the electromagnetic environment model connects the central processing model, and the central processing model connects the radar parameter model, and central processing model connection radar operation response model, radar return generation module, data processing module and display module；The electromagnetic environment model adjusts instruction/data to connect with directing and adjusting system by leading.The method that the present invention passes through model construction, the due element of electromagnetic environment, the different influences of radar parameter and the influence of radar operation are fully considered, and no longer as existing Radar Proficiency Simulator gives no thought to these factors, therefore the present invention has the characteristics that authenticity is high；Model is that parametrization is maintainable, therefore has the advantages that flexibility and scalability.
Description
Technical field
The present invention relates to a kind of Radar Proficiency Simulator, specially a kind of Radar Proficiency Simulator based on model framework,
Belong to Radar Proficiency Simulator applied technical field.
Background technique
Radar simulator, refers to that guinea pig actually uses situation, carries out ship to training and assessment radar user of service
The education and training equipment of oceangoing ship positioning and avoiding operation ability.Using video or computer simulation, the control operated by coach
This ship operation equipment, radar and the ARPA composition of platform and two sets or more, can radarscope formed navigation channel, bank shape, continental embankment and
The images such as ship.
Existing Radar Proficiency Simulator is confined to the emulation to radar interface, lacks the performance to complicated air situation, to thunder
Up to the reaction of picture effect and interference protection measure in electronic countermeasure.Cause existing Radar Proficiency Simulator that can complete base
This operation training, but it is unable to satisfy the training requirement of " war instruction one ", student can not be improved by the training on simulator
Tactics operation is horizontal, thus training effect is limited.The main reason for above problem is that radar return modelling technique falls behind, without thunder
It is supported up to principle and processing method, it is inflexible, it can not accomplish the echoing and operation response almost the same with actual load, make thunder
Therefore inadequate, the hard-to-use problem up to training simulators fidelity proposes a kind of thunder based on model framework regarding to the issue above
Up to training simulators.
Summary of the invention
The object of the invention is that providing a kind of radar training mould based on model framework to solve the above-mentioned problems
Quasi- device reaches trained authenticity, flexibility, rich and comprehensive using model algorithm, with radar totality, signal processing,
Data processing and terminal invent based on the technologies such as showing based on complex electromagnetic environment modeling, the modeling of radar running parameter, thunder
Up to the Radar Proficiency Simulator of operation response modeling, to greatly improve the training effect to radar operator student, student's war is improved
Art operation is horizontal.
The present invention is achieved through the following technical solutions above-mentioned purpose, a kind of radar training simulation based on model framework
Device, including electromagnetic environment model, radar parameter model, radar operation response model, central processing model, radar return generate mould
Block, data processing module and display module, the electromagnetic environment model connect the central processing model, and the central processing
Model connects the radar parameter model, and central processing model connection radar operation response model, radar return generate
Module, data processing module and display module；The electromagnetic environment model adjusts instruction/data to connect with directing and adjusting system by leading；
Wherein,
The electromagnetic environment model includes object module, Clutter Model and interference model；
The radar parameter model includes radar antenna model, radar accuracy model, Radar Signal Processing model and radar
Receiver module；
The central processing model include the amendment of orientation/pitching intensity, the amendment of orientation span, orientation shake, distance shake,
Distance amendment, detection output, interference output, noise generation, amplitude correction, interferential loads；
The radar operation response model includes receiver operation, upconversion operation, signal processing operations；
The radar parameter model mainly describes to influence the Main Factors of radar system working condition, is that electromagnetic environment produces
The foundation that raw, radar return generates；
Radar operation response model is mainly the dynamic change for adjusting radar parameter to reach electromagnetic environment, radar return,
Data processing module and display module are consistent with actual load function, the post-processing and display for echo.
Preferably, the object module constructs target echo model by setting target signature parameter, and characteristic parameter includes:
The Radar Cross Section of target, the Radar Cross Section fluctuating of target, spatial position, motion feature；By radar equation,
Echo strength of the target under polar coordinates simplifies are as follows:
P (A, R)=(RCS/2) * (R/R2max)4*P1(A)*P2(R)
Wherein R2maxThe maximum detectable range for the target that Radar Cross Section for target is 2, P1 (A) and P2 (R) points
It Wei not the corresponding beam amplitude value of azimuth-range.
Preferably, the building Clutter Model influence factor includes radar fix, radar frame height, radar operating frequency.
Preferably, the interference model influence factor interference classification, jamming bandwidth Band, interference centre frequency centerF
With interference equivalent power density；The response of generation and counter-measure operation for interference echo, wherein judging whether to be disturbed shadow
Whether the condition of sound is radar operating frequency between [centerF-Band/2, centerF+Band/2].
Preferably, radar antenna model is used for azimuth beam, pitching wave beam；Radar accuracy model is for direction finding precision, survey
Elevation accuracy, range accuracy；Radar Signal Processing model is anti-for pulse pressure parameters, correlative accumulation parameter, clutter graph parameter, antenna
Conflicting mode and parameter；Radar receiver model is controlled for noise coefficient, gain.
Preferably, the receiver operation in radar operation response model includes STC curve；Upconversion operation includes artificial becomes
Frequently, adaptively between frequency agility, arteries and veins, the random frequency conversion of arteries and veins group；Signal processing operations include CFAR, pulse compression, clutter map, remaining miscellaneous
Wave figure, the accumulation of more level.
Preferably, radar return generates, and is generated by electromagnetic environment model and believes the echo for entering Radar Proficiency Simulator
Number；Echo-signal is modulated with radar parameter model；Echo-signal is modulated with radar operation response model；It will adjust
Echo after system send data processing.
Preferably, radar data processing uses normal radar data processing method, carries out Target dots processing and flight path processing.
Preferably, radar terminal is shown as simulated radar and carries out terminal showing.
The beneficial effects of the present invention are:
(1) present invention by radar totality, signal processing, data processing and terminal the technologies such as show based on invent and be based on
Complex electromagnetic environment models, radar running parameter models, the Radar Proficiency Simulator of radar operation response modeling, to substantially mention
It is horizontal to improve the operation of student's tactics to the training effect of radar operator student for height.
(2) Radar Proficiency Simulator of the invention generated based on model algorithm, with the almost the same echo of actual load phenomenon
Phenomenon and operation response effect dynamically, really provide safeguard high-grade radar operator's training.
(3) present invention has fully considered the due element of electromagnetic environment, different radar parameters by the method for model construction
Influence and radar operation influence, and no longer as existing Radar Proficiency Simulator gives no thought to these factors, thus this
Invention has the characteristics that authenticity is high；Model is that parametrization is maintainable, therefore has the advantages that flexibility and scalability.
Detailed description of the invention
Fig. 1 is present system composition block diagram；
Fig. 2 is the antenna radiation pattern on radar bearing of the present invention；
Fig. 3 is pressing type noise jamming echo effect of the present invention；
Fig. 4 is STC curve of the present invention to echo modulation effect；
Fig. 5 is effect of the frequency-conversion processing of the present invention to interference modulation；
Fig. 6 is effect of the arteries and veins group pseudorandom of the present invention to interference modulation.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It please refers to shown in Fig. 1-6, a kind of Radar Proficiency Simulator based on model framework, including electromagnetic environment model, thunder
Up to parameter model, radar operation response model, central processing model, radar return generation module, data processing module and display
Module, the electromagnetic environment model connects the central processing model, and the central processing model connects the radar parameter
Model, and the central processing model connects radar operation response model, radar return generation module, data processing module and shows
Show module；The electromagnetic environment model adjusts instruction/data to connect with directing and adjusting system by leading；Wherein,
The electromagnetic environment model includes object module, Clutter Model and interference model；
The radar parameter model includes radar antenna model, radar accuracy model, Radar Signal Processing model and radar
Receiver module；
The central processing model include the amendment of orientation/pitching intensity, the amendment of orientation span, orientation shake, distance shake,
Distance amendment, detection output, interference output, noise generation, amplitude correction, interferential loads；
The radar operation response model includes receiver operation, upconversion operation, signal processing operations；
The radar parameter model mainly describes to influence the Main Factors of radar system working condition, is that electromagnetic environment produces
The foundation that raw, radar return generates；
Radar operation response model is mainly the dynamic change for adjusting radar parameter to reach electromagnetic environment, radar return,
Data processing module and display module are consistent with actual load function, the post-processing and display for echo.
As a kind of technical optimization scheme of the invention, the object module constructs target by setting target signature parameter
Echo model, characteristic parameter include: the Radar Cross Section of target, target Radar Cross Section rise and fall, spatial position,
Motion feature；By radar equation, echo strength of the target under polar coordinates simplifies are as follows:
P (A, R)=(RCS/2) * (R/R2max)4*P1(A)*P2(R)
Wherein R2maxThe maximum detectable range for the target that Radar Cross Section for target is 2, P1 (A) and P2 (R) points
It Wei not the corresponding beam amplitude value of azimuth-range.
As a kind of technical optimization scheme of the invention, the building Clutter Model influence factor includes radar fix, thunder
The high, radar operating frequency up to frame.
As a kind of technical optimization scheme of the invention, the interference model influence factor interferes classification, jamming bandwidth
Band, interference centre frequency centerF and interference equivalent power density；The sound of generation and counter-measure operation for interference echo
It answers, wherein judging whether that whether be disturbed influence condition is radar operating frequency in [centerF-Band/2, centerF+
Band/2] between.
As a kind of technical optimization scheme of the invention, radar antenna model is used for azimuth beam, pitching wave beam；Radar essence
Model is spent for direction finding precision, survey elevation accuracy, range accuracy；Radar Signal Processing model is used for pulse pressure parameters, correlative accumulation
Parameter, clutter graph parameter, Antenna Anti-jamming mode and parameter；Radar receiver model is controlled for noise coefficient, gain.
As a kind of technical optimization scheme of the invention, the receiver operation in radar operation response model includes STC song
Line；Upconversion operation includes between artificial frequency conversion, adaptive frequency agility, arteries and veins, the random frequency conversion of arteries and veins group；Signal processing operations include CFAR,
Pulse compression, clutter map, residual clutter, the accumulation of more level.
As a kind of technical optimization scheme of the invention, radar return is generated, and will be entered by electromagnetic environment model generation
The echo-signal of Radar Proficiency Simulator；Echo-signal is modulated with radar parameter model；With radar operation response model
Echo-signal is modulated；Send modulated echo to data processing.
As a kind of technical optimization scheme of the invention, radar data processing uses normal radar data processing method, into
Row Target dots processing and flight path processing.
As a kind of technical optimization scheme of the invention, it is aobvious that radar terminal is shown as simulated radar progress terminal
Show.
Applicable elements of the invention: 1, system is Radar Proficiency Simulator；2, training needs higher fidelity；Training needs
Want flexibility.
Embodiment:
Applicable elements of the invention: 1, system is Radar Proficiency Simulator；2, training needs higher fidelity；Training needs
Want flexibility.The present invention is using a radar model as explanation.
Directing and adjusting system sends scenario data, comprising: current location, radar fix and the current air of target are interfered main
Parameter, directing and adjusting system are not belonging to the present invention, the data that the present invention uses directing and adjusting system to send.For the data readjusted the distribution and sent are led, originally
Invention system does following processing:
Step 1: building target: RCS 2m2, RCS rise and fall to rise and fall to be slow, 1 batch of 1 frame, my machine；Construct clutter: radar frame
It is located at ALONG COASTAL FUJIAN position, a height of 100 meters of radar frame；Building interference: broadband pressing type noise jamming, bandwidth 100MHz, in
Frequency of heart is the 16th point of the working frequency of radar.
Step 2: the modulation of radar antenna model: azimuth beamwidth is * * degree, and azimuth pattern is shown in Fig. 2, wide with wave beam
Modulation noise and target width are spent, with distribution of the directional diagram modulated interferer in orientation.
Step 3: radar accuracy is modulated: bearing accuracy is 0.5 °, and range accuracy is 100 meters, with bearing accuracy and apart from essence
It spends and Random trimming is carried out to the position of target.
Step 4: signal processing is modulated: pulse compression coefficient: bandwidth, pulsewidth are accumulated using 32 rank MTD, do not use clutter map,
Pulse compression coefficient determines the feature in target range, MTD parameter influence the effect that whether target is detected and interference exports.
Step 5: receiver module is modulated: noise coefficient 3.0 determines noise output；STC parameter selection to echo into
Line amplitude amendment；Working frequency and signal processing mode are modified interference output.
Step 6: setting STC curve, all echoes reduce, target is more easily discriminated with interference, sees Fig. 4.
Step 7: carrying out frequency-conversion processing to radar, so that radar operating frequency is staggered with jammer working frequency, judge at this time
Jammer cannot interfere radar, and interference effect disappears.See Fig. 5.
Step 8: interference effect changes, and partial target can be distinguished using arteries and veins group pseudo-random fashion, Fig. 6 is seen.
The present invention has fully considered the due element of electromagnetic environment, different radar parameters by the method for model construction
Influence and the influence of radar operation, and no longer as existing Radar Proficiency Simulator gives no thought to these factors, therefore this hair
It is bright to have the characteristics that authenticity is high；Model is that parametrization is maintainable, therefore has the advantages that flexibility and scalability.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (9)
1. a kind of Radar Proficiency Simulator based on model framework, it is characterised in that: including electromagnetic environment model, radar parameter mould
Type, radar operation response model, central processing model, radar return generation module, data processing module and display module, it is described
Electromagnetic environment model connects the central processing model, and the central processing model connects the radar parameter model, and institute
State central processing model connection radar operation response model, radar return generation module, data processing module and display module；Institute
It states electromagnetic environment model and adjusts instruction/data to connect with directing and adjusting system by leading；Wherein,
The electromagnetic environment model includes object module, Clutter Model and interference model；
The radar parameter model includes that radar antenna model, radar accuracy model, Radar Signal Processing model and radar receive
Machine model；
The central processing model includes orientation/pitching intensity amendment, the amendment of orientation span, orientation shake, distance shake, distance
Span amendment, detection output, interference output, noise generation, amplitude correction, interferential loads；
The radar operation response model includes receiver operation, upconversion operation, signal processing operations；
The radar parameter model mainly describes to influence the Main Factors of radar system working condition, is electromagnetic environment generation, thunder
The foundation generated up to echo；
Radar operation response model is mainly the dynamic change for adjusting radar parameter to reach electromagnetic environment, radar return, data
Processing module and display module are consistent with actual load function, the post-processing and display for echo.
2. a kind of Radar Proficiency Simulator based on model framework according to claim 1, it is characterised in that: the target
Model constructs target echo model by setting target signature parameter, and characteristic parameter includes: the Radar Cross Section of target, mesh
The fluctuating of target Radar Cross Section, spatial position, motion feature；By radar equation, echo of the target under polar coordinates is strong
Degree simplifies are as follows:
P (A, R)=(RCS/2) * (R/R2max)4*P1(A)*P2(R)
Wherein R2maxThe maximum detectable range for the target that Radar Cross Section for target is 2, P1 (A) and P2 (R) are respectively side
Position and apart from corresponding beam amplitude value.
3. a kind of Radar Proficiency Simulator based on model framework according to claim 1, it is characterised in that: the building
Clutter Model influence factor includes radar fix, radar frame height, radar operating frequency.
4. a kind of Radar Proficiency Simulator based on model framework according to claim 1, it is characterised in that: the interference
Model influence factor interferes classification, jamming bandwidth Band, interference centre frequency centerF and interference equivalent power density；For
The response of the generation of interference echo and counter-measure operation, wherein judge whether to be disturbed influence condition be radar operating frequency whether
Between [centerF-Band/2, centerF+Band/2].
5. a kind of Radar Proficiency Simulator based on model framework according to claim 1, it is characterised in that: radar antenna
Model is used for azimuth beam, pitching wave beam；Radar accuracy model is for direction finding precision, survey elevation accuracy, range accuracy；Radar letter
Number processing model be used for pulse pressure parameters, correlative accumulation parameter, clutter graph parameter, Antenna Anti-jamming mode and parameter；Radar receives
Machine model is controlled for noise coefficient, gain.
6. a kind of Radar Proficiency Simulator based on model framework according to claim 1, it is characterised in that: radar operation
Receiver operation in response model includes STC curve；Upconversion operation includes between artificial frequency conversion, adaptive frequency agility, arteries and veins, arteries and veins group
Random frequency conversion；Signal processing operations include CFAR, pulse compression, clutter map, residual clutter, the accumulation of more level.
7. a kind of Radar Proficiency Simulator based on model framework according to claim 1, it is characterised in that: radar return
It generates, the echo-signal of Radar Proficiency Simulator will be entered by being generated by electromagnetic environment model；With radar parameter model to echo
Signal is modulated；Echo-signal is modulated with radar operation response model；Send modulated echo to data processing.
8. a kind of Radar Proficiency Simulator based on model framework according to claim 1, it is characterised in that: radar data
Processing uses normal radar data processing method, carries out Target dots processing and flight path processing.
9. a kind of Radar Proficiency Simulator based on model framework according to claim 1, it is characterised in that: radar terminal
Simulated radar progress terminal is shown as to show.
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