CN208207198U - A kind of quick R-T unit of synthetic aperture radar signal - Google Patents
A kind of quick R-T unit of synthetic aperture radar signal Download PDFInfo
- Publication number
- CN208207198U CN208207198U CN201820958338.1U CN201820958338U CN208207198U CN 208207198 U CN208207198 U CN 208207198U CN 201820958338 U CN201820958338 U CN 201820958338U CN 208207198 U CN208207198 U CN 208207198U
- Authority
- CN
- China
- Prior art keywords
- output end
- radar signal
- input terminal
- synthetic aperture
- quick
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Radar Systems Or Details Thereof (AREA)
Abstract
The utility model discloses a kind of quick R-T units of synthetic aperture radar signal, it include: multiple receiving antennas, the port of each receiving antenna connects the input terminal of a low-noise amplifier, each low-noise amplifier connects the input terminal of two power splitters, first output end of each two power splitter connects the input terminal of a detection Log Video Amplifier, the output end of each detection Log Video Amplifier is all connected with the input terminal of amplitude-comprised direction-finding circuit, the second output terminal of each two power splitter is all connected with first switch, the output end of amplitude-comprised direction-finding circuit and the output end of first switch are all connected with the input terminal of signal processing system, the output end of signal processing system, transmitter, the port of second switch and multiple transmitting antennas is sequentially connected.Detection processing is received to omnidirectional's multi-channel parallel of radar signal the beneficial effects of the utility model are: realizing, the intercept probability and speed to synthetic aperture radar signal can be greatlyd improve.
Description
Technical field
The utility model relates to electronic countermeasure technology field, in particular to a kind of quick transmitting-receiving of synthetic aperture radar signal
Device.
Background technique
Synthetic aperture radar SAR is a kind of electronic imaging radar system, can obtain the target image of similar optical photograph, be
Strategy, tactical reconnaissance, combat surveillance system important component.The radar system is mainly in satellite, someone/scounting aeroplane
Equip and use on platform, mainly have to sea, ground target SAR image forming job mode: Spotlight SAR Imaging-radar beam, which is absorbed in, to be shone
It penetrates and scans target area and ScanSAR mode-radar beam by flight path in specific target areas, stripmap SAR-radar beam
It can arbitrary scan specific target areas etc..The radar system is a kind of pulse correlative accumulation processing system, above several SAR at
As under mode, only needing to emit and receive accumulation thousands of a pulses when scanning target imaging, and its radar signal pulse repeats
Interval is only hundred us magnitudes, therefore relative to for the system of its electronic countermeasure, radar signal has apparent on ground
Bursting property, how quickly intercepting and capturing reception and emitting interference signal is a technological difficulties to synthetic aperture radar jamming device.
On airspace, traditional intercepting and capturing to synthetic aperture radar signal detect receipts and rely primarily on servo mechanism using Fast Circle
Sweep, the mode of fan sweeping realizes that receipts are detectd in scanning, this mechanical means generally most can achieve radar signal airspace capture velocity fastly
Second grade, and radar main lobe scanning Covering time is also only second grade when synthetic aperture radar is to target imaging, thus radar from
It defends in jamming equipment (main lobe receives interference), is often not suitable for the mode for detecing receipts using mechanical scanning.
Utility model content
The utility model provides a kind of quick R-T unit of synthetic aperture radar signal, solves the skill of the prior art
Art problem.
The technical solution that the utility model solves above-mentioned technical problem is as follows:
A kind of quick R-T unit of synthetic aperture radar signal, comprising: multiple receiving antennas, the end of each receiving antenna
The input terminal of mouth one low-noise amplifier of connection, each low-noise amplifier connect the input terminal of two power splitters, each
First output end of two power splitters connects the input terminal of a detection Log Video Amplifier, each detection Log Video Amplifier
Output end be all connected with the input terminal of amplitude-comprised direction-finding circuit, the second output terminal of each two power splitter is all connected with first switch, institute
The output end of the output end and the first switch of stating amplitude-comprised direction-finding circuit is all connected with the input terminal of signal processing system, the letter
The output end of number processing system, transmitter, second switch and multiple transmitting antennas port be sequentially connected；Wherein, the multiple
Receiving antenna is identical with the antenna amount of the multiple transmitting antenna, and evenly distributed by circle battle array, the multiple receiving antenna
Position and the multiple transmitting antenna position correspond.
Detection processing is received to omnidirectional's multi-channel parallel of radar signal the beneficial effects of the utility model are: realizing, and
Quick recognition and verification is carried out to radar signal within the scope of omnidirectional airspace using the method for electronic switch switching, compared to the machine of using
The system of tool servo scanning mode, design complexity is low, and the stability and equipment dependability of system can be improved, can be very big
Improve the intercept probability and speed to synthetic aperture radar signal in ground.
Based on the above technical solution, the utility model can also do following improvement.
Preferably, the first switch is SP8T microwave PIN swtich.
Preferably, the second switch is SP8T microwave relay switch.
Preferably, the type of the multiple receiving antenna is electromagnetic horn.
Preferably, the type of the multiple transmitting antenna is electromagnetic horn.
Preferably, the antenna amount of the multiple receiving antenna and the multiple transmitting antenna is 8.
Detailed description of the invention
Fig. 1 is that a kind of structure of the quick R-T unit of synthetic aperture radar signal provided by the embodiment of the utility model is shown
It is intended to；
Fig. 2 is a kind of electricity of the quick R-T unit for synthetic aperture radar signal that another embodiment of the utility model provides
Gas schematic diagram；
Fig. 3 is the timing diagram received to radar signal with transmitting that another embodiment of the utility model provides.
Specific embodiment
The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining that this is practical
It is novel, it is not intended to limit the scope of the utility model.
As shown in Figure 1, a kind of quick R-T unit of synthetic aperture radar signal, comprising: multiple receiving antennas 1, each
The port of receiving antenna connects the input terminal of a low-noise amplifier 2, and each low-noise amplifier 2 connects two power splitters
3 input terminal, the first output end of each two power splitter 3 connect the input terminal of a detection Log Video Amplifier 4, Mei Gejian
The output end of wave Log Video Amplifier 4 is all connected with the input terminal of amplitude-comprised direction-finding circuit 5, the second output of each two power splitter 3
End is all connected with first switch 6, and the output end of amplitude-comprised direction-finding circuit 5 and the output end of first switch 6 are all connected with signal processing system 7
Input terminal, the output end of signal processing system 7, transmitter 8, second switch 9 and multiple transmitting antennas 10 port successively connect
It connects；Wherein, multiple receiving antennas 1 are identical with the antenna amount of multiple transmitting antennas 10, and evenly distributed by circle battle array, Duo Gejie
The position of the position and multiple transmitting antennas 10 of receiving antenna 1 corresponds.
In view of the above-mentioned problems, being laid out in orientation by uniform circular array using 8 electromagnetic horns, antenna bearingt beam angle is excellent
In 45 °, the instantaneous wave cover of orientation omnidirectional is realized.Each receiving antenna access low-noise amplifier, power splitter and DLVA module,
DLVA branch is sent into parallel makes a farfetched comparison direction finding processing circuit unit, completes arrival bearing's detection；Meanwhile power splitter branch is micro- through SP8T
Wave PIN switch is sent into back end signal processing unit, to radar signal carry out frequency, pulsewidth, the parameters such as repetition period measurement and
Radar Signal Recognition may be implemented quickly to determine the radar signal arrival bearing to be interfered in this way.Meanwhile lower section uses 8
As transmitting antenna, channel layout and receiving antenna correspond the electromagnetic horn of identical index parameter, in conjunction with SP8T microwave after
Electric switch realizes being switched fast for transmission channel.In this way, electronic warfare system believes the synthetic aperture radar of unknown arrival bearing
Number intercepting and capturing receive and can greatly shorten to several ms magnitude with launch time.
The present invention, which is realized, receives detection processing to omnidirectional's multi-channel parallel of radar signal, and using electronic switch switching
Method carries out quick recognition and verification to radar signal within the scope of omnidirectional airspace, anti-to the confirmation of synthetic aperture radar arrival bearing
Answer speed fast, up to several ms grade；Such method designs complicated journey compared to the system using mechnical servo scanning mode
It spends low, the stability and equipment dependability of system can be improved；System is received using the electronic warfare of such device, can greatly be mentioned
Height improves electronic warfare system jamming performance to the intercept probability and speed of synthetic aperture radar signal.
As shown in Fig. 2, the received aerial array of radar signal (R1, R2 ..., R8) enters, signal is through low-noise amplifier
(LNA) simultaneously function divides two-way for amplification, is sent into direction finding processing after detection Log Video Amplifier (DLVA) carries out amplitude detection all the way
Circuit carries out arrival bearing's judgement, and time about 1ms, another way is sent into back end signal processing system through SP8T microwave PIN swtich, complete
At radar signal parameter measurement and radar signal type identification.After being confirmed as target radar, control SP8T microwave relay switch
It can switch to corresponding transmission channel, emitted aerial array (T1, T2 ..., T8) sends radar signal.To thunder
It is received up to signal as shown in Figure 3 with the timing diagram of transmitting.
By, it follows that such antenna can be formed simultaneously the more crossing beams of multipolarization, and interleaving depth is in broadband in figure
It is varied less in range, meanwhile, there is high-gain, the radiation characteristic of Sidelobe.
In engineering practice, it receives and uses same electromagnetic horn with transmitting antenna, by each unit 8 circle symmetrical cloth of battle array up and down
It sets, upper, transmission antenna group receives transmitting antenna channel and correspond up and down receiving antenna group under；Receiving channel uses
SP8T microwave PIN swtich, switching speed are better than 100ns, and transmission channel is using the SP8T microwave that can bear microwave high power
Relay switch, switching speed are better than 15ms；Received 8 road microwave module such as low noise raw amplifier (LNA), two function point
The designs that are integrated in one such as device, detection Log Video Amplifier (DLVA), can greatly reduce equipment volume.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (6)
1. a kind of quick R-T unit of synthetic aperture radar signal characterized by comprising multiple receiving antennas, Mei Gejie
The port for receiving antenna connects the input terminal of a low-noise amplifier, and the output end of each low-noise amplifier connects two function
Divide the input terminal of device, the first output end of each two power splitter connects the input terminal of a detection Log Video Amplifier, each
The output end of detection Log Video Amplifier is all connected with the input terminal of amplitude-comprised direction-finding circuit, the second output terminal of each two power splitter
It is all connected with first switch, the output end of the amplitude-comprised direction-finding circuit and the output end of the first switch are all connected with signal processing system
The input terminal of system, the output end of the signal processing system, transmitter, second switch and multiple transmitting antennas port successively connect
It connects；Wherein, the multiple receiving antenna is identical with the antenna amount of the multiple transmitting antenna, and evenly distributed by circle battle array,
The position of the multiple receiving antenna and the position of the multiple transmitting antenna correspond.
2. a kind of quick R-T unit of synthetic aperture radar signal according to claim 1, which is characterized in that described
One switch is SP8T microwave PIN swtich.
3. a kind of quick R-T unit of synthetic aperture radar signal according to claim 2, which is characterized in that described
Two switches are that SP8T microwave relay switchs.
4. a kind of quick R-T unit of synthetic aperture radar signal according to claim 1, which is characterized in that described more
The type of a receiving antenna is electromagnetic horn.
5. a kind of quick R-T unit of synthetic aperture radar signal according to claim 4, which is characterized in that described more
The type of a transmitting antenna is electromagnetic horn.
6. a kind of quick R-T unit of synthetic aperture radar signal according to claim 1-5, feature exist
In the antenna amount of the multiple receiving antenna and the multiple transmitting antenna is 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820958338.1U CN208207198U (en) | 2018-06-20 | 2018-06-20 | A kind of quick R-T unit of synthetic aperture radar signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820958338.1U CN208207198U (en) | 2018-06-20 | 2018-06-20 | A kind of quick R-T unit of synthetic aperture radar signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208207198U true CN208207198U (en) | 2018-12-07 |
Family
ID=64497367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820958338.1U Expired - Fee Related CN208207198U (en) | 2018-06-20 | 2018-06-20 | A kind of quick R-T unit of synthetic aperture radar signal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208207198U (en) |
-
2018
- 2018-06-20 CN CN201820958338.1U patent/CN208207198U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10551490B2 (en) | Security inspection system and method using the three-dimensional holographic imaging technology | |
| US10877130B2 (en) | Drone detection radar | |
| CN108398677B (en) | Three-coordinate continuous wave one-dimensional phase scanning unmanned aerial vehicle low-altitude target detection system | |
| CN108196250B (en) | Continuous wave radar system and method for low-altitude small target detection | |
| CN106405491B (en) | Unmanned plane based on software radio monitors system | |
| US20160327641A1 (en) | Bistatic radar | |
| CN104133209B (en) | The Integrative Radar system and method for target search and meteorological detection | |
| US3879732A (en) | Multi-directional barrage jamming system | |
| CN105866746A (en) | Application of FMCW system T/R unit in digital phased array | |
| CN107219518A (en) | Low slow small unmanned aerial vehicle flight path measuring system and method | |
| CN114114249A (en) | Omnidirectional coverage multi-beam detection radar system | |
| RU2624736C2 (en) | Radar station circular view "resonance" | |
| US20230131377A1 (en) | Uav and uav operator detector | |
| RU2697389C1 (en) | Combined radar and communication system on radio photon elements | |
| CN208207198U (en) | A kind of quick R-T unit of synthetic aperture radar signal | |
| RU2615988C1 (en) | Method and system of barrier air defence radar detection of stealth aircraft based on gsm cellular networks | |
| CN108896970A (en) | A kind of radar chaff method based on multivariate vector synthetic technology | |
| Kassotakis | Modern radar techniques for air surveillance & defense | |
| CN207096444U (en) | Low slow small unmanned aerial vehicle flight path measuring system | |
| Krueckemeier et al. | A modular localization system combining passive RF detection and passive radar | |
| CN216560976U (en) | Small simulation equipment of SLQ-32 ESM | |
| Van Rossum et al. | SMRF architecture concepts | |
| RU2742943C1 (en) | Radar interrogator with system of active phased arrays | |
| RU2792419C1 (en) | Method for obtaining information about meteorological objects in primary radars | |
| RU128728U1 (en) | THREE-RANGE RADAR STATION |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181207 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |