CN103217667A - Calibrating method and device of radar dynamic tracking accuracy - Google Patents
Calibrating method and device of radar dynamic tracking accuracy Download PDFInfo
- Publication number
- CN103217667A CN103217667A CN 201210014218 CN201210014218A CN103217667A CN 103217667 A CN103217667 A CN 103217667A CN 201210014218 CN201210014218 CN 201210014218 CN 201210014218 A CN201210014218 A CN 201210014218A CN 103217667 A CN103217667 A CN 103217667A
- Authority
- CN
- China
- Prior art keywords
- radar
- simulated target
- coordinate
- target
- dynamic tracking
- 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.)
- Pending
Links
Images
Landscapes
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The invention relates to a calibrating method and device of radar dynamic tracking accuracy. The calibrating method and device of the radar dynamic tracking accuracy comprises a traction cableway, an analog target and a coordinate receiving station, wherein the analog target slides on the cableway through traction of an electric winding machine, when the analog target reflects a radar wave, the analog target locating a self coordinate at the same time, and the analog target sends back location data to the coordinate receiving station. The coordinate receiving station is fixedly installed on the ground, receives the real-time locating data sent back from the analog target, compares the real-time locating data with radar echo location data, and finishes calibration of the radar dynamic tracking accuracy. The calibrating method and device of the radar dynamic tracking accuracy is high in location accuracy, avoids system errors caused by a traditional calibrating method, and is easy and convenient to erect and good in applicability. Through repeated measurement of a radar and repeated comparison, radar system errors can be obtained, so that convenient and reliable calibration to the radar dynamic tracking accuracy is achieved. Calibrating accuracy is improved, and meanwhile calibrating cost of the radar dynamic tracking accuracy is greatly reduced.
Description
Technical field
The present invention relates to a kind of precision calibration method and apparatus of radio positioning system, relate in particular to a kind of radar dynamic tracking precision calibration method and apparatus, can effectively reject the influence of land clutter, the dynamic tracking precision of low power radar near region is demarcated.
Background technology
Radar dynamic tracking precision calibration is an important content of radar development, is the key index that ensures the radar detection tracking performance.At present, radar dynamic tracking precision mainly adopts the method for the real bullet of shooting at the target to demarcate, promptly pass through the ballistic trajectory of calculated in advance target missile, perhaps measure the ballistic trajectory of target missile by other standard radars, with its as standard value and tested radar tracking to ballistic trajectory compare, carry out the demarcation of radar dynamic tracking precision.But no matter be the ballistic trajectory of calculated in advance or the track that standard radar is measured, all there is certain error in itself, is generally meter level, and this error will directly be brought in the radar demarcation, and the cost of this method is higher, demarcate to radar and bring certain difficulty.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of radar dynamic tracking precision calibration device, comprise simulated target, haulage gear and coordinate receiving station, described haulage gear comprises ropeway carrying-rope, dragrope and windlass; Described simulated target has the profile that the radar return characteristic is specified in reflection, hang slidably on ropeway carrying-rope, on at least one direction, drawn by electric windlass, thereby occurrence positions changes, and this position and change in location are by radar institute coordinate detection by dragrope; Described simulated target comprises locating device, self coordinate is positioned, and pass locator data back described coordinate receiving station in real time; Described coordinate receiving station is fixedly mounted on ground, and real-time positioning data and radar return locator data that described simulated target is passed back compare, and finish radar dynamic tracking precision calibration.
In technique scheme, the locating device that described simulated target is carried comprises two differential GPS movement stations, and described pair of differential GPS movement station comprises gps satellite signal receiving antenna, data processing chip, power supply and short-wave radio set; Described gps satellite signal receiving antenna receives the positioning signal from gps satellite; Described data processing chip is responsible for calculating by the gps satellite positioning signal that receives the real-time coordinate data of simulated target present position and height; Carry out communication, the coordinate data of real-time Transmission simulated target present position and height between described short-wave radio set and the fixing coordinate receiving station.
In technique scheme, described haulage gear also comprises supporting construction, described ropeway carrying-rope is the wire rope that is erected at least two supporting constructions top, and the enough height of built on stilts to be constituting cableway, and described windlass is arranged on the supporting construction below and spurs by capstan winch or unclamp dragrope.
In technique scheme, simulated target comprises shell, and described shell is for to have identical profile or radar reflect property with the target of the required detection of radar.
In technique scheme, the speed of described windlass traction simulation purpose is not less than 10m/s, and the data acquiring frequency of described pair of differential GPS movement station is not less than 5Hz.
The present invention also provides a kind of radar tracking low latitude little target dynamic precision calibration method, uses haulage gear, simulated target and corresponding with it coordinate receiving station; And comprise the steps: when described simulated target is static, start the locating device that carries on the simulated target, simulated target is accurately located, and will send to described coordinate receiving station with the locator data of time tag; When described coordinate receiving station correctly receives described locator data, start haulage gear simulated target is moved with certain track and speed; Radar is surveyed simulated target, scan and is followed the tracks of as the detection of a target and to its position, and writes down its movement locus; The locator data of the simulated target of the band time coordinate that described coordinate receiving station will receive in real time is sent in the processor of radar, with radargrammetry to the simulated target movement locus compare, the dynamic tracking precision of radar is demarcated.
In technique scheme, the locating device that carries on the described simulated target is two differential GPS movement stations, and described pair of differential GPS movement station comprises gps satellite signal receiving antenna, data processing chip, power supply and short-wave radio set; Described gps satellite signal receiving antenna receives the positioning signal from gps satellite; Described data processing chip is responsible for calculating by the gps satellite positioning signal that receives the real-time coordinate data of simulated target present position and height; Carry out communication, the coordinate data of real-time Transmission simulated target present position and height between described short-wave radio set and the fixing coordinate receiving station.
In technique scheme, described haulage gear comprises supporting construction, ropeway carrying-rope, dragrope and windlass; Described simulated target has the profile that the radar return characteristic is specified in reflection, hangs slidably on ropeway carrying-rope, drawn by electric windlass by dragrope at least one direction, thereby occurrence positions changes.
In technique scheme, the speed of described windlass traction simulation purpose is not less than 10m/s.
In technique scheme, the data acquiring frequency of described pair of differential GPS movement station is not less than 5Hz.
The present invention has obtained following technique effect:
1. the dynamic tracking precision calibration that is used for various radars;
2. improve the stated accuracy of radar dynamic tracking precision;
3. obtain radar dynamic tracking accuracy systems error;
4. can effectively simulate the reflection characteristic of all kinds of targets;
5. system's good reproducibility, the efficiency-cost ratio height.
Description of drawings
Fig. 1 is the synoptic diagram of simulated target provided by the present invention;
Fig. 2 is the synoptic diagram of ground coordinate of the present invention receiving station.
Mark among the figure: 1-simulated target; The 2-GPS movement station; The 3-ropeway carrying-rope; The 4-dragrope; The 5-electric windlass; The 6-GPS fixed station; The 7-radar.
Embodiment
Understand and enforcement the present invention for the ease of those of ordinary skills, the present invention is described in further detail below in conjunction with the drawings and the specific embodiments.
Shown in Fig. 1-2, radar dynamic tracking precision calibration device provided by the present invention comprises simulated target, haulage gear and coordinate receiving station.
Simulated target 1 comprises shell, and enclosure designs promptly can adopt any required material for to have identical profile or radar reflect property with the target of required analog detection, and as metal, compound substance etc., making becomes required profile, as aircraft, guided missile etc.; Also can be made into required size and profile according to the target property of radar needs measurement.The inside of shell or above be provided with stationary platform, be used to carry the locating device of accurately determining the simulated target position.
Haulage gear is used to control the movement locus of simulated target 1, and it comprises support, ropeway carrying-rope 3, dragrope 4, electric windlass 5; Ropeway carrying-rope 3 is erected at the top of at least two supports, and the enough height of built on stilts to be constituting cableway, and electric windlass 5 is arranged on the support below and spurs by capstan winch or unclamp dragrope 4; Simulated target 1 is hung slidably on ropeway carrying-rope 3, and is pulled rope 4 tractions on parallel with ropeway carrying-rope 3 haply direction, and simulated target 1 is drawn by electric windlass 5 by dragrope 4 at least in one direction, thereby occurrence positions changes; It is preferably drawn by two electric windlasss 5 by two dragropes 4 respectively on both direction, thereby can realize to-and-fro movement, to simulate comparatively complex track.Preferably, the wire rope that ropeway carrying-rope 3 gets up for two end supports, span between the wire rope is not less than 100m, the height of the relative radar of simulated target is not less than 5m, but intervisibility between radar and the simulated target, simulated target, connect with electric windlass by the hawser as dragrope on the wire rope as ropeway carrying-rope by suspended, electric windlass comprises parts such as storage rope reel, motor and turbine and worm speed reduction unit, and the speed of electric windlass traction simulation purpose is not less than 10m/s.
The locating device that simulated target 1 is carried can be two differential GPS movement stations 2, and two differential GPS movement stations 2 comprise gps satellite signal receiving antenna, data processing chip, power supply and short-wave radio set etc.; The gps satellite signal receiving antenna receives the positioning signal from gps satellite; Data processing chip is responsible for calculating by the gps satellite positioning signal that receives the real-time coordinate data of simulated target 1 present position and height; Carry out communication, the coordinate data of real-time Transmission simulated target 1 present position and height between short-wave radio set and the fixing coordinate receiving station.Preferably, two differential GPS movement stations are installed in the simulated target centre position, and the gps satellite signal receiving antenna points into the sky.
The locating device that simulated target 1 is carried can also comprise the cable displacement transducer, and the position that combines the support that sets up ropeway carrying-rope 3 again by measure analog target 1 and the relative displacement of ropeway carrying-rope 3 calculates the exact position of simulated target 1 and highly in real time.
The using method of this radar dynamic tracking precision calibration device is, after being installed on the simulated target 1 by mode shown in Fig. 1 GPS movement station 2, open GPS movement station 2 and fixed station 6 communications, enter calculus of differences, coordinate parameters to simulated target 1 is accurately located, usually the data acquiring frequency of GPS movement station 2 is not less than 5Hz, promptly locatees at least for 1 second 5 times, and precision can reach a centimetre rank.Fixed station 6 starts electric windlass 5 after beginning to receive the correct data-signal of GPS movement station 2 transmissions on the simulated target 1, and 1 beginning of traction simulated target is slided on ropeway carrying-rope 3.Radar 7 is surveyed simulated target 1, scan and is followed the tracks of as the detection of a target and to its position, and the record object movement locus.The fixed station 6 of two differential GPSs is connected with the processor of radar 7, the position data of real-time receiving belt time coordinate, and the simulated target movement locus of measuring with radar 7 compares, and realizes the dynamic tracking precision calibration of radar.Because simulated target 1 mainly slides along ropeway carrying-rope 3, the movement locus relative fixed, radar 7 can carry out duplicate measurements to it, and obtains the systematic error of radar 7 by analytical calculation.
Simulated target 1 slides on cableway under the traction of electric windlass 5, reflected radar ripple and self coordinate carried out real-time positioning, simultaneously locator data is passed back coordinate receiving station.Coordinate receiving station receives and compares with the radar return locator data after simulated target is passed the real-time positioning data back, finishes radar dynamic tracking precision calibration.
Because simulated target 1 is on cableway during traction slide, the reflected radar electric wave, become radar lock on, and the target signature that simulated target 1 is measured according to the radar needs makes, can simulate the radar reflection feature of the required tracking target of radar well.Real time position and the height that ground photo both can be by the radar wave localizing objects like this, the positional information of the simulated target 1 that can also pass back by the locating device that carries on the target obtains the real time position and the height of target.Because the two differential GPS movement stations as locating device are directly installed on the simulated target, and bearing accuracy is much higher, precision can reach centimetre-sized, therefore it passes the real-time coordinate that locator data can reflect simulated target 1 more accurately back, the radar return locator data that can be used as the simulated target that true value and radar tracking obtain compares, demarcate and calibrate, finish radar dynamic tracking precision calibration.
Claims (10)
1. a radar dynamic tracking precision calibration device comprises simulated target, haulage gear and coordinate receiving station, and it is characterized in that: described haulage gear comprises ropeway carrying-rope, dragrope and windlass;
Described simulated target has the profile that the radar return characteristic is specified in reflection, hang slidably on ropeway carrying-rope, on at least one direction, drawn by electric windlass, thereby occurrence positions changes, and this position and change in location are by radar institute coordinate detection by dragrope;
Described simulated target comprises locating device, self coordinate is positioned, and pass locator data back described coordinate receiving station in real time;
Described coordinate receiving station is fixedly mounted on ground, and real-time positioning data and radar return locator data that described simulated target is passed back compare, and finish radar dynamic tracking precision calibration.
2. radar dynamic tracking precision calibration device according to claim 1, it is characterized in that: the locating device that described simulated target is carried comprises two differential GPS movement stations, and described pair of differential GPS movement station comprises gps satellite signal receiving antenna, data processing chip, power supply and short-wave radio set;
Described gps satellite signal receiving antenna receives the positioning signal from gps satellite;
Described data processing chip is responsible for calculating by the gps satellite positioning signal that receives the real-time coordinate data of simulated target present position and height;
Carry out communication, the coordinate data of real-time Transmission simulated target present position and height between described short-wave radio set and the fixing coordinate receiving station.
3. radar dynamic tracking precision calibration device according to claim 1, it is characterized in that: described haulage gear also comprises supporting construction, described ropeway carrying-rope is the wire rope that is erected at least two supporting construction tops, the enough height of built on stilts to be constituting cableway, and described windlass is arranged on the supporting construction below and spurs by capstan winch or unclamp dragrope.
4. according to any described radar dynamic tracking precision calibration device among the claim 2-3, it is characterized in that: simulated target is for to have identical profile or radar reflect property with the target of the required detection of radar.
5. according to any described radar dynamic tracking precision calibration device among the claim 2-4, it is characterized in that: the speed of described windlass traction simulation purpose is not less than 10m/s, and the data acquiring frequency of described pair of differential GPS movement station is not less than 5Hz.
6. a radar tracking low latitude little target dynamic precision calibration method is characterized in that using haulage gear, simulated target and corresponding with it coordinate receiving station; And comprise the steps:
When described simulated target is static, start the locating device that carries on the simulated target, simulated target is accurately located, and will send to described coordinate receiving station with the locator data of time tag;
When described coordinate receiving station correctly receives described locator data, start haulage gear and make simulated target with certain track and speed operation;
Radar is surveyed simulated target, scan and is followed the tracks of as the detection of a target and to its position, and writes down its movement locus;
The locator data of the simulated target of the band time coordinate that described coordinate receiving station will receive in real time is sent in the processor of radar, with radargrammetry to the simulated target movement locus compare, the dynamic tracking precision of radar is demarcated.
7. radar dynamic tracking precision calibration method according to claim 6, it is characterized in that: the locating device that carries on the described simulated target is two differential GPS movement stations, and described pair of differential GPS movement station comprises gps satellite signal receiving antenna, data processing chip, power supply and short-wave radio set;
Described gps satellite signal receiving antenna receives the positioning signal from gps satellite;
Described data processing chip is responsible for calculating by the gps satellite positioning signal that receives the real-time coordinate data of simulated target present position and height;
Carry out communication, the coordinate data of real-time Transmission simulated target present position and height between described short-wave radio set and the fixing coordinate receiving station.
8. radar dynamic tracking precision calibration method according to claim 7, it is characterized in that: described haulage gear comprises supporting construction, ropeway carrying-rope, dragrope and windlass;
Described simulated target has the profile that the radar return characteristic is specified in reflection, hangs slidably on ropeway carrying-rope, drawn by electric windlass by dragrope at least one direction, thereby occurrence positions changes.
9. radar tracking according to claim 8 low latitude little target dynamic precision calibration method is characterized in that: the speed of described windlass traction simulation purpose is not less than 10m/s.
10. radar tracking according to claim 9 low latitude little target dynamic precision calibration method, it is characterized in that: the data acquiring frequency of described pair of differential GPS movement station is not less than 5Hz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210014218 CN103217667A (en) | 2012-01-18 | 2012-01-18 | Calibrating method and device of radar dynamic tracking accuracy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210014218 CN103217667A (en) | 2012-01-18 | 2012-01-18 | Calibrating method and device of radar dynamic tracking accuracy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103217667A true CN103217667A (en) | 2013-07-24 |
Family
ID=48815624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210014218 Pending CN103217667A (en) | 2012-01-18 | 2012-01-18 | Calibrating method and device of radar dynamic tracking accuracy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103217667A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106288956A (en) * | 2016-10-11 | 2017-01-04 | 北京航空航天大学 | A kind of arc distant object motion simulator |
| CN106288957A (en) * | 2016-10-11 | 2017-01-04 | 北京航空航天大学 | A kind of distant object motion simulator |
| CN106501784A (en) * | 2016-11-03 | 2017-03-15 | 中国科学院电子学研究所 | A kind of missile borne SAR simulation testing device |
| CN108946500A (en) * | 2018-08-17 | 2018-12-07 | 中国冶集团有限公司 | A kind of packaged type material lifting system |
| CN109407060A (en) * | 2017-08-18 | 2019-03-01 | 郑州宇通客车股份有限公司 | Radar Automatic Test System |
| CN109425852A (en) * | 2017-08-21 | 2019-03-05 | 比亚迪股份有限公司 | The scaling method of automobile and trailer-mounted radar, device |
| CN110118965A (en) * | 2019-04-01 | 2019-08-13 | 贵州航天电子科技有限公司 | A kind of radio is to lost motion target acquisition characteristic field trial device |
| CN112066825A (en) * | 2020-08-26 | 2020-12-11 | 中国人民解放军63856部队 | Test method for examining hit rate of anchor hook ejector |
| WO2022129904A1 (en) * | 2020-12-15 | 2022-06-23 | Antenna Dynamics Ltd | Antenna positioning system |
-
2012
- 2012-01-18 CN CN 201210014218 patent/CN103217667A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106288956A (en) * | 2016-10-11 | 2017-01-04 | 北京航空航天大学 | A kind of arc distant object motion simulator |
| CN106288957A (en) * | 2016-10-11 | 2017-01-04 | 北京航空航天大学 | A kind of distant object motion simulator |
| CN106501784A (en) * | 2016-11-03 | 2017-03-15 | 中国科学院电子学研究所 | A kind of missile borne SAR simulation testing device |
| CN106501784B (en) * | 2016-11-03 | 2019-05-14 | 中国科学院电子学研究所 | A kind of missile borne SAR simulation testing device |
| CN109407060A (en) * | 2017-08-18 | 2019-03-01 | 郑州宇通客车股份有限公司 | Radar Automatic Test System |
| CN109425852A (en) * | 2017-08-21 | 2019-03-05 | 比亚迪股份有限公司 | The scaling method of automobile and trailer-mounted radar, device |
| CN108946500A (en) * | 2018-08-17 | 2018-12-07 | 中国冶集团有限公司 | A kind of packaged type material lifting system |
| CN110118965A (en) * | 2019-04-01 | 2019-08-13 | 贵州航天电子科技有限公司 | A kind of radio is to lost motion target acquisition characteristic field trial device |
| CN112066825A (en) * | 2020-08-26 | 2020-12-11 | 中国人民解放军63856部队 | Test method for examining hit rate of anchor hook ejector |
| WO2022129904A1 (en) * | 2020-12-15 | 2022-06-23 | Antenna Dynamics Ltd | Antenna positioning system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103217667A (en) | Calibrating method and device of radar dynamic tracking accuracy | |
| EP3296760B1 (en) | Method and system for testing radar systems | |
| CN109613584B (en) | UWB-based positioning and orientation method for unmanned card concentrator | |
| US7268723B2 (en) | System and method for locating targets using measurements from a space based radar | |
| CN109188380B (en) | Key index testing system and method for low-slow small detection radar | |
| CN103163507A (en) | Radar tracking low-altitude small-target dynamic precision calibrating method and device | |
| CN112689235A (en) | Positioning method and device based on Bluetooth signals | |
| CN110068803A (en) | A kind of aerial bracketing device and method of radar equipment | |
| WO2022005619A2 (en) | Ocean surface wind direction retrieval from reflected radio signals on space-borne platforms | |
| EP2637039B1 (en) | Frequency field scanning | |
| CN103901413A (en) | Three-dimensional radar altitude dynamic calibration device and method based on unmanned helicopter with rotor wings | |
| CN110673170A (en) | Method and terminal for testing dynamic single-point positioning accuracy | |
| CN107462905A (en) | A kind of Big Dipper GPS dual-mode localization method, positioning terminal and alignment system | |
| CN104535993A (en) | High-precision ground object positioning method using multiple airborne active radars for range finding | |
| CN110673169A (en) | Receiver RTK precision testing method and terminal | |
| CN105527606A (en) | Virtual pseudo-satellite method | |
| CN105607100A (en) | Polar ice movement automatic monitoring system and monitoring method | |
| RU2530231C1 (en) | Radio signal transmission and reception method | |
| CN104360335B (en) | Ionized layer parametric inversion method based on AIS target indication | |
| CN102288107B (en) | Ultra large geometric parameter measuring system self-calibration method based on guidance of wireless sensor network | |
| CN110196444A (en) | Ship automatic positioning method and device based on marine radar | |
| CN202815213U (en) | Radar dynamic tracking precision calibrating apparatus | |
| CN203941286U (en) | Three-dimensional radar height dynamic calibration equipment based on rotor unmanned helicopter | |
| CN110850447A (en) | Method for comprehensively evaluating positioning accuracy of train positioning unit | |
| CN107036679B (en) | Device and method for measuring water level of canyon water channel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130724 |