CN204595207U - A kind of radar target, interference, clutter integrated simulation system - Google Patents
A kind of radar target, interference, clutter integrated simulation system Download PDFInfo
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- CN204595207U CN204595207U CN201520343808.XU CN201520343808U CN204595207U CN 204595207 U CN204595207 U CN 204595207U CN 201520343808 U CN201520343808 U CN 201520343808U CN 204595207 U CN204595207 U CN 204595207U
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Abstract
The utility model discloses a kind of radar target, interference, clutter integrated simulation system, aobvious control unit is resolved control module be connected with High-speed Control bus by radar target, interference, Clutter simulation, intermediate frequency distributes receiving element, clutter modulation generation unit, two cover broadband DRFM unit and compacting interference Generator Unit and is all connected with High-speed Control bus, and clutter modulation generation unit, two overlaps broadband DRFM unit and suppresses and disturbs the output terminal of Generator Unit to be connected with intermediate frequency Modulation unit and to pass through radio-frequency channel unit to be connected with transmitter unit; Intermediate frequency distribute receiving element and clutter modulate generation unit, two overlap broadband DRFM unit and suppress disturb Generator Unit) be connected; Agility scheme synthesizer and intermediate frequency distribute receiving element, intermediate frequency Modulation unit, radio-frequency channel unit are connected.The utility model is practical, security is high, simple to operate, modularization, intellectuality.
Description
Technical field
The utility model belongs to field of radar, a kind of radar target specifically radar target, interference, clutter concentrated in together, interference, clutter integrated simulation system.
Background technology
At present, along with the complexity day by day of electromagnetic environment, more and more urgent to the demand of regarding radar analogue system.Current, regarding radar analogue system mostly is the analogue system of simple function, so just lack practicality, and radar target, interference, clutter integrated simulation system can make up these shortcomings, radar target, interference and clutter are concentrated on same analogue system, demand in many ways can be met so simultaneously.
Summary of the invention
The purpose of this utility model is to provide a kind of radar target, interference, clutter integrated simulation system, this system availability is strong, security is high, simple to operate, modularization, intellectuality, be the indispensable multifunction emulation system of radar system.
The purpose of this utility model is achieved through the following technical solutions:
A kind of radar target, interference, clutter integrated simulation system, it is characterized in that: this system comprises aobvious control unit, radar target, interference, Clutter simulation resolves control module, intermediate frequency distributes receiving element, clutter modulation generation unit, two cover broadband DRFM unit, compacting interference Generator Unit, agility scheme synthesizer, intermediate frequency Modulation unit, radio-frequency channel unit and transmitter unit, described aobvious control unit passes through radar target, interference, Clutter simulation resolves control module and is connected with High-speed Control bus, intermediate frequency distributes receiving element, clutter modulation generation unit, two cover broadband DRFM unit are all connected with High-speed Control bus with compacting interference Generator Unit, clutter modulation generation unit, two output terminals overlapping broadband DRFM unit and compacting interference Generator Unit are connected with intermediate frequency Modulation unit and pass through radio-frequency channel unit and are connected with transmitter unit, intermediate frequency distributes receiving element and clutter and modulates generation unit, two and overlap broadband DRFM unit and suppress and disturb Generator Unit to be connected, agility scheme synthesizer and intermediate frequency distribute receiving element, intermediate frequency Modulation unit, radio-frequency channel unit are connected.
In the utility model, transmitter unit exports with one group of RF and is connected; Transmitter unit comprises 1 ~ 2GHz transmitter unit, 2 ~ 6GHz transmitter unit, 6 ~ 12GHz transmitter unit.Intermediate frequency distributes receiving element and is connected with receiving antenna.
Intermediate frequency distributes receiving element: intermediate frequency distributes receiving element can be divided into intermediate frequency allocation units and receiving element, wherein the major function of receiving element is the radiofrequency signal or the low power transmissions signal that receive tested radar with antenna space coupling or radio-frequency cable injection mode, realizes the limited range enlargement to radar signal and smooth reception.The major function of intermediate frequency allocation units is the radar baseband signals 3 ~ 4GHz intermediate-freuqncy signal that receiving element exports being converted to 20 ~ 820MHz, is further divided into three tunnels, send clutter to produce modulating unit and two cover broadband DRFM unit respectively.
Broadband DRFM unit: mainly contain three partial functions, one is resolve radar target distance that control module sends here, PDW describing word, target radial speed and radar directional pattern data according to radar target, interference, Clutter simulation, produces radar target signal with active mode.Two is resolve the target radial speed of control module, target range and radar directional pattern data according to radar target, interference, Clutter simulation, radar mean frequency baseband signal is sampled, stores and delayed recovery, produce the target echo signal needed for test; Three is can arrange jamming signal type and interference parameter according to display, and system just can produce the various cheating interference signals required for test.
Clutter modulation generation unit: major function is the average radar cross section of resolving radar parameter that control module sends here, amplitude distribution, Spectral structure, clutter spectrum type, clutter dividing elements, each echo unit according to radar target, interference, Clutter simulation, Doppler frequency, generates Radar Clutter Signal by the method for software.On the other hand, clutter modulation generation unit also under radar target, interference, Clutter simulation resolve the control of control module, can receive actual measurement clutter zero intermediate frequency data file, carries out the playback of surveying clutter.
Compacting interference generation unit: major function is the frequency directing information that compacting jamming signal type, interference parameter and instantaneous frequency measurement according to user's setting provide, under target radar target, interference, Clutter simulation resolve the control of control module, control DDS produces various compacting undesired signal.
Agility scheme synthesizer: intermediate frequency distributes receiving element to major function in order to connect, intermediate frequency Modulation unit, radio-frequency channel unit provide local oscillation signal needed for upper and lower frequency conversion, and provide required clock reference signal for each unit, make complete machine clock unified.
Intermediate frequency Modulation unit: comprise two major functions, one is under radar target, interference, Clutter simulation resolve the control of control module, broadband DRFM unit, 20 ~ 820MHz clutter that control module and broadband DRFM unit export is resolved to radar target, interference, Clutter simulation, target echo, cheating interference carry out Doppler modulation, after the high intermediate-freuqncy signal of up-conversion to 3 again ~ 4GHz, carry out the amplitude control of clutter, target echo, cheating interference signal; Two is under the control of noise generation unit, after the high intermediate-freuqncy signal of 20 ~ 820MHz noise baseband signal frequency conversion, 3 ~ 4GHz that compacting interference generation unit is exported, the amplitude of being carried out noise signal by programmable attenuator is controlled, and realizes flicker noise interference function by High Speed Modulation switch.
Radio-frequency channel unit: major function is the radiofrequency signal that 3 ~ 4GHz target echo signal, Radar Clutter Signal, cheating interference signal and the noise interferences exported by intermediate frequency Modulation unit upconverts to 1 ~ 12GHz, and exports to transmitter unit along separate routes.
Transmitter unit: 1 ~ 2GHz, 2 ~ 6GHz, the target echo signal of 6 ~ 12GHz, Radar Clutter Signal, cheating interference signal and compacting undesired signal that mainly radio frequency channel unit exports to be carried out after power amplification by aerial radiation to tested radar, and when completing double point source interference, the realization of the continuous wave noise in two orientation.
Radar target, interference, Clutter simulation resolve control module: the various parameters mainly receiving aobvious control unit, comprise the trajectory parameters of target component, target or platform, jamming signal type and interference parameter etc., control the real time execution of this device target echo and interfering channel.Be exactly the clutter combat data and the control command that receive aobvious control unit in addition, according to parameters such as Texas tower position and antenna directions, use Clutter Model, provide various clutter parameter, and carry out clutter dividing elements, resolve the average radar cross section of each echo unit, resolve power and the Doppler frequency of clutter according to the factor such as antenna radiation pattern, kinematic parameter, atmospheric attenuation, antenna damping of radar, control the modulation that clutter generator completes Radar Clutter Signal.
Aobvious control unit: the control center of radar target, interference, Clutter simulation system and show the various information of this system.
The utility model has practical, the feature such as security is high, simple to operate, modularization, intellectuality, is the indispensable multifunction emulation system of radar system.This system can realize following functions: target simulation function, clutter produce function, electronic interferences function, system control function, dual-frequency radar test function.
Accompanying drawing explanation
Fig. 1 is composition frame chart of the present utility model.
Fig. 2 workflow diagram of the present utility model.
Embodiment
As shown in Figure 1, a kind of radar target, interference, clutter integrated simulation system, comprise aobvious control unit 1, radar target, interference, Clutter simulation resolves control module 3, intermediate frequency distributes receiving element 7, clutter modulation generation unit 9, two cover broadband DRFM unit 10, 11, compacting interference Generator Unit 12, agility scheme synthesizer 20, intermediate frequency Modulation unit 13, radio-frequency channel unit 14 and transmitter unit 18, aobvious control unit passes through radar target, interference, Clutter simulation resolves control module and is connected with High-speed Control bus 4, intermediate frequency distributes receiving element, clutter modulation generation unit, two cover broadband DRFM unit are all connected with High-speed Control bus with compacting interference Generator Unit, clutter modulation generation unit, two cover broadband DRFM unit and compacting disturb the output terminal of Generator Unit be connected with intermediate frequency Modulation unit 13 and be connected with transmitter unit 18 by radio-frequency channel unit 14, intermediate frequency distributes receiving element and clutter and modulates generation unit, two and overlap broadband DRFM unit and suppress and disturb Generator Unit to be connected, agility scheme synthesizer 20 and intermediate frequency distribute receiving element, intermediate frequency Modulation unit, radio-frequency channel unit are connected.Transmitter unit exports 19 with one group of RF and is connected; Transmitter unit comprises 1 ~ 2GHz transmitter unit 15,2 ~ 6GHz transmitter unit 16,6 ~ 12GHz transmitter unit 17.Intermediate frequency distributes receiving element 7 and is connected with receiving antenna 5.Two cover broadband DRFM unit are broadband DRFM unit (target) 10 and broadband DRFM unit (deception) 11.
The utility model has following functions:
Mark analog functuion: user can arrange the parameters such as the characteristics of motion, radar carrier frequency, signal type, Doppler, bandwidth by the aobvious control unit in computing machine, thus realizes radar target simulation function; Computing machine can be modulated radar target signal time delay, Doppler and radar target signature, by the mode of radiation or injection, meets the requirement of Radar Targets'Detection.
Clutter produces function: use Clutter Model, and native system can produce respectively or superpose and produce the type clutter such as sea clutter, land clutter, sexual intercourse and chaff, is transferred to radar carrier frequency, by the mode of radiation or injection, meets the requirement of Radar Clutter Background test.Native system also supports that the mode that zero intermediate frequency clutter data file injects produces noise signal.
Electronic interferences function: native system can simulation electronic war interference function, the radar signal of system by detecting, determines the parameters such as the pulsewidth of signal, carrier frequency, pulse repetition rate; Adopt wideband digital frequency memory technique, record and preserve radar signal waveform, complete the time delay to radar target and Deceiving interference signal and Doppler modulation under control of the computer, and the modulation of radar target signature; During for cheating interference signal imitation, can the signal such as analog rate tows, distance tows, distance-speed sync tows, decoy, double point source interference.Simulation compacting undesired signal, comprises arrowband and aims at interference, Sweeping nonlinearity, flicker interference, occlusion interfere, pectinate noise interference.
System control function: native system can on-the-spotly be arranged and amendment parameter, has and controls in real time and Presentation Function, fault detect, self-inspection and calibration function, can show the data received in real time, and the information of simulated target.When native system breaks down, system can detect concrete module produced problem, and reports to the police.
Dual-frequency radar test function: native system self just can simulate the radar clutter, target echo and the various undesired signal that produce needed for the test of dual-frequency radar target detection, antijamming capability and clutter recognition.
When carrying out radar target simulation, radar target simulation can be divided into active mode and passive mode, when carrying out radar target simulation with active mode, according to the radar carrier frequency that aobvious control module 1 is arranged, width parameter, repetition parameter, signal type, signal intra-pulse modulation parameter, targetpath, target RCS, the parameters such as fluctuation characteristic, through radar target, interference, Clutter simulation resolves control module 3 and carries out data processing, then data are sent to High-speed Control bus 4, then by High-speed Control bus 4, data are sent to unit, then two cover broadband DRFM unit (10, 11) data in High-speed Control bus 4 are received, and row modulation is rushed in Radar Signal In-Pulse Characteristics, generate radar target baseband signal and the Doppler frequency signal of 20 ~ 820MHz, then these two kinds of signals are sent to the radar target baseband signal producing 3 ~ 4GHz after intermediate frequency Modulation unit 13 carries out up-conversion and amplitude modulation(PAM), again radar target baseband signal being sent to radio-frequency channel unit 14 carry out upconversion process to 1 ~ the radar rf frequency of 12GHz, if tested radar will be radiated to radiation mode finally by transmitter unit 18 in outfield, if directly directly inject tested radar with radio-frequency cable in internal field.When passively carrying out radar target simulation, the tested radar that first first should inject 1 ~ 12GHz6 is sent to the signal of rack, then signal is sent intermediate frequency and distribute receiving element 7, intermediate frequency distributes receiving element 7 and the radiofrequency signal that tested radar sends is processed, and signal is divided into two-way, frequency measurement code detection thresholding 8 ranging pulse parameter is sent on one tunnel, produces detection threshold signal simultaneously and is sent broadband DRFM unit 10; Another road is distributed after receiving element 7 carries out downconverting to the intermediate frequency baseband signal of 20 ~ 820MHz at intermediate frequency, is sent to broadband DRFM unit 10.The intermediate frequency baseband signal of the 20 ~ 820MHz received is become radar base band target echo by broadband DRFM unit 10; Intermediate frequency Modulation unit 13 receiving target echoed signal also carries out upconversion process, produce the target echo intermediate-freuqncy signal of 3 ~ 4GHz, then target echo intermediate-freuqncy signal is sent to radio-frequency channel unit 14 and carries out upconversion process, generate the target echo signal of 1 ~ 12GHz, then the signal of 1 ~ 12GHz is sent and be sent to antenna element 18, be sent to tested radar with radiation mode or injection mode.
During guinea pig clutter, the tested radar that first first should inject 1 ~ 12GHz6 is sent to the signal of rack, then signal is sent intermediate frequency and distribute receiving element 7, intermediate frequency distributes receiving element 7 and the radiofrequency signal that tested radar sends is processed, and signal is divided into two-way, frequency measurement code detection thresholding 8 ranging pulse parameter is sent on one tunnel, produces detection threshold signal simultaneously and is sent clutter modulation generation unit 9; Another road is distributed after receiving element 7 carries out downconverting to the intermediate frequency baseband signal of 20 ~ 820MHz at intermediate frequency, delivers to clutter modulation generation unit 9.The intermediate frequency baseband signal of the 20 ~ 820MHz received is become radar clutter baseband signal by clutter modulation generation unit 9; Intermediate frequency Modulation unit 13 receiving radar base band noise signal also carries out upconversion process, produce the Radar Clutter Signal of 3 ~ 4GHz, then these signals are sent to radio-frequency channel unit 14 and carry out upconversion process, generate the radio frequency Radar Clutter Signal of 1 ~ 12GHz, then the signal of 1 ~ 12GHz is sent to antenna element 18, is sent to tested radar with radiation mode or injection mode.
When carrying out Radar jam signal emulation, undesired signal is divided into compacting undesired signal and cheating interference signal, realized by compacting interference generation unit 12 during compacting interference signal imitation, compacting interference generation unit 12 controls broadband DDS by noise modulator and produces baseband noise signal, then intermediate frequency Modulation unit 13 is by the radar mean frequency noise signal of baseband noise signal up-conversion to 3 ~ 4GHz, again radar mean frequency noise signal is sent radio-frequency channel unit 14 and carry out upconversion process, the radar RF noise jamming signal of up-conversion to 1 ~ 12GHz, if tested radar will be radiated to radiation mode through transmission antenna unit 18 in outfield, if directly directly inject tested radar with radio-frequency cable in internal field.It is the signal that the tested radar first injecting 1 ~ 12GHz6 is sent to rack during cheating interference signal imitation, then signal is sent intermediate frequency and distribute receiving element 7, intermediate frequency distributes receiving element 7 and the radiofrequency signal that tested radar sends is processed, and signal is divided into two-way, frequency measurement code detection thresholding 8 ranging pulse parameter is sent on one tunnel, produces detection threshold signal simultaneously and is sent broadband DRFM unit 11; Another road is distributed after receiving element 7 carries out downconverting to the intermediate frequency baseband signal of 20 ~ 820MHz at intermediate frequency, delivers to broadband DRFM unit 11.The intermediate frequency baseband signal of the 20 ~ 820MHz received is become cheating interference signal by broadband DRFM unit 11; Intermediate frequency Modulation unit 13 receives cheating interference signal and carries out upconversion process, produce the cheating interference intermediate-freuqncy signal of 3 ~ 4GHz, then this signal is sent to radio-frequency channel unit 14 and carries out upconversion process, generate the cheating interference signal of 1 ~ 12GHz, then the signal of 1 ~ 12GHz is sent to antenna element 18, is sent to tested radar with radiation mode or injection mode.
Claims (3)
1. a radar target, interference, clutter integrated simulation system, is characterized in that: this system comprises aobvious control unit (1), radar target, interference, Clutter simulation resolves control module (3), intermediate frequency distributes receiving element (7), clutter modulation generation unit (9), two cover broadband DRFM unit (10, 11), compacting interference Generator Unit (12), agility scheme synthesizer (20), intermediate frequency Modulation unit (13), radio-frequency channel unit (14) and transmitter unit (18), described aobvious control unit (1) passes through radar target, interference, Clutter simulation resolves control module (3) and is connected with High-speed Control bus (4), and intermediate frequency distributes receiving element (7), clutter modulation generation unit (9), two cover broadband DRFM unit (10, 11) be all connected with High-speed Control bus (4) with compacting interference Generator Unit (12), clutter modulation generation unit (9), two cover broadband DRFM unit (10, 11) disturb the output terminal of Generator Unit (12) to be connected with intermediate frequency Modulation unit (13) and to pass through radio-frequency channel unit (14) with compacting to be connected with transmitter unit (18), intermediate frequency distributes receiving element (7) and clutter and modulates generation unit (9), two and overlap broadband DRFM unit (10,11) and suppress and disturb Generator Unit (12) to be connected, agility scheme synthesizer (20) and intermediate frequency distribute receiving element (7), intermediate frequency Modulation unit (13), radio-frequency channel unit (14) are connected.
2. radar target according to claim 1, interference, clutter integrated simulation system, is characterized in that: transmitter unit (18) exports (19) with one group of RF and is connected; Transmitter unit (18) comprises 1 ~ 2GHz transmitter unit (15), 2 ~ 6GHz transmitter unit (16), 6 ~ 12GHz transmitter unit (17).
3. radar target according to claim 1, interference, clutter integrated simulation system, is characterized in that: intermediate frequency distributes receiving element (7) and is connected with receiving antenna (5).
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| CN201520343808.XU CN204595207U (en) | 2015-05-25 | 2015-05-25 | A kind of radar target, interference, clutter integrated simulation system |
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| CN201520343808.XU CN204595207U (en) | 2015-05-25 | 2015-05-25 | A kind of radar target, interference, clutter integrated simulation system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104849704A (en) * | 2015-05-25 | 2015-08-19 | 扬州宇安电子科技有限公司 | Radar target, interference, and clutter integrated simulation system |
| CN106353737A (en) * | 2016-08-22 | 2017-01-25 | 西安电子科技大学 | Method for blanket jamming radar detection based on full-frequency band spectrum analysis |
| CN108008362A (en) * | 2016-10-30 | 2018-05-08 | 中国船舶重工集团公司第七二三研究所 | A kind of if radar target echo and interference generation module |
| CN115811377A (en) * | 2022-10-17 | 2023-03-17 | 扬州宇安电子科技有限公司 | Interference communication system based on airborne platform |
-
2015
- 2015-05-25 CN CN201520343808.XU patent/CN204595207U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104849704A (en) * | 2015-05-25 | 2015-08-19 | 扬州宇安电子科技有限公司 | Radar target, interference, and clutter integrated simulation system |
| CN106353737A (en) * | 2016-08-22 | 2017-01-25 | 西安电子科技大学 | Method for blanket jamming radar detection based on full-frequency band spectrum analysis |
| CN106353737B (en) * | 2016-08-22 | 2019-02-19 | 西安电子科技大学 | A kind of radar pressing type interference detection method based on full range band spectrum analysis |
| CN108008362A (en) * | 2016-10-30 | 2018-05-08 | 中国船舶重工集团公司第七二三研究所 | A kind of if radar target echo and interference generation module |
| CN115811377A (en) * | 2022-10-17 | 2023-03-17 | 扬州宇安电子科技有限公司 | Interference communication system based on airborne platform |
| CN115811377B (en) * | 2022-10-17 | 2023-09-15 | 扬州宇安电子科技有限公司 | Interference communication system based on airborne platform |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 |