CN103454620A - Tracking-type active radar calibrator based on transmitted signal reestablishing system - Google Patents
Tracking-type active radar calibrator based on transmitted signal reestablishing system Download PDFInfo
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Abstract
The invention relates to a tracking-type active radar calibrator based on a transmitted signal reestablishing system. The tracking-type active radar calibrator comprises a servo unit (1), a radio frequency receiver (2) and a radio frequency transmitter (5). The tracking-type active radar calibrator further comprises a tracking device (3), a signal reestablishing device (4) and a frequency synthesizer (6), the tracker (3) is respectively connected with the radio frequency receiver (2), the frequency synthesizer (6) and the signal reestablishing device (4), and the signal reestablishing device (4) is further connected with the frequency synthesizer (6) and the radio frequency emitter (5). The tracking-type active radar calibrator can quickly capture tracking radar signals and reestablish radio frequency signals so as to send the signals to an on-orbit satellite radar, and realize the functions that at any position within the coverage range of the satellite radar signals, the radar signals can be captured and tracked quickly, signal emission time can be accurately set according to received signal intervals, and the radio frequency signals are reestablished to be sent to the radar.
Description
Technical field
The present invention relates to the microwave remote sensing technique field, relate in particular to a kind of following-up type source scaler of rebuilding system based on forward signal.
Background technology
Satellite radar in orbit during, due to component aging, clock drift, the factors such as antenna attitude fluctuation, can affect system delay and the gain of radar, thereby cause the error of radar earth observation.
For guaranteeing the stability of observation data during radar in orbit, accuracy and reliability, need to calibrate and validity check in-orbit to radar, guarantees the continuity of radar observation task and the consistance of data standard.
Source scaler is a kind of radar ground targeting device in-orbit.For radar provides standard known point target echoed signal, radar is revised the Time delay measurement equal error of self system by receiving this standard signal, thereby realizes radar absolute calibration in-orbit.
Traditional direct forward type source scaler can not the tracking radar signal, only realize the reception to radar signal, amplify and directly forward, can not carry out the analyzing and processing of baseband conversion and frequency spectrum to the radar signal received, for satellite radar, the type source scaler is only as the bend pipe of a transparent forwarding.Because it does not possess catching and following function radar signal, in order to guarantee that the signal that source scaler forwards can enter in the radar receive window, need to before carrying out, test go out the accurate height in the laying place of this source scaler requirement according to calculation of parameter such as the satellite radar flying height of predicting and signal transmission intervals, test period in-orbit, the type source scaler must be fixedly mounted on to this specific elevation place in the radar beam overlay area, to guarantee the signal that scaler forwards, can enter the radar receive window.
In addition, because this direct forward type source scaler is only done transparent forwarding to the radar signal received, there is no the Reconstruction of The Function of forward signal, make forward signal only have fixing amount of delay, the start trigger of forward signal is constantly fixing.In fact, at satellite radar in orbit in process, because the impact of multiple space factor is difficult to its flying height is accomplished to Accurate Prediction, can't guarantee that for the source scaler that the constant time lag amount can only be provided its forward signal constantly accurately enters the radar receive window in triggering, so the success ratio of bracketing is lower in-orbit.
At present, what satellite radar both domestic and external was calibrated all uses in-orbit is direct forward type source scaler, equipment is fixedly mounted on certain some position in the radar signal overlay area, in recursion period of radar, the opportunity of only once calibrating in-orbit, in order to obtain the test figure of abundant number of times, test period that need to be very long.
Summary of the invention
The object of the invention is to, for solving the specific limited of above-mentioned direct forward type source scaler installation site, and can only provide a fixing amount of delay to cause the lower technical matters of success ratio of bracketing in-orbit, the invention provides a kind of following-up type source scaler of rebuilding system based on forward signal.This following-up type source scaler can fast Acquisition tracking radar signal and is rebuild emission of radio frequency signals to the satellite in orbit radar, the arbitrary place place of realization in the radar signal overlay area of satellite, can both fast Acquisition tracking radar signal, according to accurate signalization x time of the sigtnal interval received, rebuild the function of emission of radio frequency signals to radar.
For achieving the above object, the invention provides a kind of following-up type source scaler of rebuilding system based on forward signal.This following-up type source scaler comprises: unit is watched, radio-frequency transmitter, radio frequency sending set in sky, it is characterized in that, this following-up type source scaler also comprises tracker, signal re-creator, frequency synthesizer, watch unit and be connected with radio frequency sending set with radio-frequency transmitter respectively in described day;
Described tracker is connected with radio-frequency transmitter, frequency synthesizer and signal re-creator respectively, this tracker generates result of spectrum analysis and exports respectively frequency synthesizer and signal re-creator to after carrying out the fast Fourier transform analysis processing for the radiofrequency signal by radio-frequency transmitter output;
Described signal re-creator also is connected with radio frequency sending set with frequency synthesizer, and this signal re-creator is carried out analyzing and processing for the result of spectrum analysis by tracker output, after generating base-band analog signal and it being modulated to intermediate frequency, exports radio frequency sending set to;
Described frequency synthesizer is respectively radio-frequency transmitter, radio frequency sending set, tracker, signal re-creator local oscillation signal is provided, the result of spectrum analysis that each local oscillation signal is all exported by tracker is adjusted and is kept phase place consistent, and it is for controlling the start trigger moment of radio-frequency transmitter, radio frequency sending set, tracker, signal re-creator.
As further improvement in the technical proposal, described tracker comprises: radio frequency wave detector, phase-sensitive detector (PSD), AD converter and tracking filter;
The radiofrequency signal of described radio frequency wave detector received RF receiver output is carried out detection, obtains the RF envelope signal, and this RF envelope signal is as the initial time benchmark of tracker, for calculating the start trigger moment of described each local oscillation signal;
Described phase-sensitive detector (PSD) carries out phase sensitive detection for the intermediate-freuqncy signal by radio-frequency transmitter output, generates two-way base band orthogonal signal and inputs to AD converter;
Described AD converter is for carrying out the AD conversion, the generating digital signal by the described two-way base band orthogonal signal that receive;
Tracking filter is processed the digital signal of AD converter output by fast Fourier transform analysis, and, after the RF envelope signal in conjunction with the output of radio frequency wave detector, generates and the output spectrum analysis result.
As further improvement in the technical proposal, described signal re-creator comprises: digital quantity generator, DA converter and quadrature modulator;
Described digital quantity generator, for receiving the result of spectrum analysis of tracker output, is done spectrum analysis and time delay numerical evaluation by this result, generates baseband digital signal and exports it to DA converter;
The input end of DA converter is connected with the digital quantity generator, and the described baseband digital signal received is carried out to the DA conversion, exports the two-way base-band analog signal of generation to quadrature modulator;
Quadrature modulator is connected with the DA converter, and the described base-band analog signal received is modulated, and generates intermediate-freuqncy signal and exports radio frequency sending set to.
As further improvement in the technical proposal, described radio-frequency transmitter comprises: low noise amplification and wave filter, Full-deramp frequency mixer, the first intermediate frequency amplify and wave filter;
Described low noise amplification is watched unit with the input end of wave filter with sky and is connected, and the reception sky is watched the radiofrequency signal of unit output and carried out amplification filtering, and its output terminal is connected with the radio frequency wave detector with the Full-deramp frequency mixer respectively;
Full-deramp frequency mixer input end is connected with wave filter with low noise amplification, receives the radiofrequency signal after amplification filtering of low noise amplification and wave filter output, by itself and local oscillation signal mixing, obtains the intermediate-freuqncy signal after oblique;
The first intermediate frequency amplification is connected with the Full-deramp frequency mixer with wave filter, the intermediate-freuqncy signal after going is tiltedly done to further amplification filtering, and export the intermediate-freuqncy signal after amplification filtering to phase-sensitive detector (PSD).
As further improvement in the technical proposal, described radio frequency sending set comprises: the second intermediate frequency amplification and wave filter, up-conversion mixer, power amplification and wave filter;
The second intermediate frequency amplification is connected with quadrature modulator with wave filter, and the intermediate-freuqncy signal that will receive from quadrature modulator is carried out amplification filtering, and exports the intermediate-freuqncy signal after amplification filtering to up-conversion mixer;
Up-conversion mixer amplifies and to be connected with wave filter with the second intermediate frequency, to radiofrequency signal, and this radiofrequency signal is exported to the intermediate-freuqncy signal up-conversion the amplification filtering from the second intermediate frequency amplification and wave filter receive to power amplification and wave filter;
Power amplification is connected with up-conversion mixer with wave filter, and the radiofrequency signal that will receive from up-conversion mixer carries out amplification filtering and export sky to watching unit.
As further improvement in the technical proposal, described frequency synthesizer also provides the change over clock of clock signal as AD converter and DA converter.
The advantage of a kind of following-up type source scaler based on forward signal reconstruction system of the present invention is:
(1) there is the following function of radiofrequency signal, in-orbit in the bracketing process, laying elevation without the calculated in advance scaler, only scaler need be placed on to any position in the radar signal coverage, can test in-orbit, greatly reduce targeting device to laying the requirement in place, make implantation of device maneuverability more;
(2) in the recursion period of satellite radar, can any position in the radar signal coverage realize the laying of multi-point, make the bracketing cycle greatly shorten, in recursion period of satellite radar, can on the adjacent satellite track, test in-orbit respectively, improve test efficiency, strengthened the ageing of the calibration results;
(3) there is the Reconstruction of The Function of forward signal, spectrum analysis by the radar signal to receiving, can accurately calculate the start trigger moment of the forward signal of reconstruction, rebuild the radio-frequency pulse that one group of Transmission Time Interval with radar signal mates fully and be transmitted to satellite radar, guarantee that the forward signal of emission accurately enters the receive window of radar, has improved the success ratio of bracketing in-orbit greatly;
(4) forward signal reconstruction and radar signal following function realize by the fast fourier transform algorithm analyzing and processing, than the direct forward type source scaler of traditional system, this kind of forward signal rebuild system following-up type source scaler does not increase hardware cost and complexity.
The accompanying drawing explanation
Fig. 1 is a kind of schematic block diagram of rebuilding the following-up type source scaler of system based on forward signal of the present invention.
Fig. 2 is a kind of structural drawing of rebuilding the following-up type source scaler of system based on forward signal in the embodiment of the present invention.
Reference numeral
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described and be achieved by following technical proposals.
As shown in Figure 1, following-up type source scaler of rebuilding system based on forward signal of the present invention, this following-up type source scaler comprises: unit is watched in sky, radio-frequency transmitter, radio frequency sending set, this following-up type source scaler also comprises tracker, signal re-creator, frequency synthesizer, watch unit and be connected with radio frequency sending set with radio-frequency transmitter respectively in described day;
Described tracker is connected with radio-frequency transmitter, frequency synthesizer and signal re-creator respectively, this tracker generates result of spectrum analysis and exports respectively frequency synthesizer and signal re-creator to after carrying out the fast Fourier transform analysis processing for the radiofrequency signal by radio-frequency transmitter output;
Described signal re-creator also is connected with radio frequency sending set with frequency synthesizer, and this signal re-creator is carried out analyzing and processing for the result of spectrum analysis by tracker output, after generating base-band analog signal and it being modulated to intermediate frequency, exports radio frequency sending set to;
Described frequency synthesizer is respectively radio-frequency transmitter, radio frequency sending set, tracker, signal re-creator local oscillation signal is provided, the result of spectrum analysis that each local oscillation signal is all exported by tracker is adjusted and is kept phase place consistent, and it is for controlling the start trigger moment of radio-frequency transmitter, radio frequency sending set, tracker, signal re-creator.
As shown in Figure 2, be a kind of structural drawing of rebuilding the following-up type source scaler of system based on forward signal in the embodiment of the present invention.Wherein, the radiofrequency signal transceiver unit that unit 1 is described following-up type source scaler is watched in sky, specifically comprises: antenna, feed, circulator, servo turntable.It circulator of watching in unit 1 is connected with radio frequency sending set 5 with radio-frequency transmitter 2 by radio-frequency cable; The circulator front end is connected with feed, and feed carries out the conversion of electromagnetic wave signal between space and cable; Servo turntable is for regulating antenna direction, and in the radar calibration process, servo turntable control antenna greatest irradiation direction is aimed at the radar antenna main beam.
Described radio-frequency transmitter 2 comprises: low noise amplification and wave filter 21, Full-deramp frequency mixer 22, the first intermediate frequency amplify and wave filter 23; Described low noise amplification is watched unit 1 with the input end of wave filter 21 with sky and is connected, the reception sky is watched the radiofrequency signal of unit 1 output and is carried out amplification filtering, its output terminal is connected with radio frequency wave detector 31 with Full-deramp frequency mixer 22 respectively, the signal main road connects Full-deramp frequency mixer 22, and the coupling branch road is connected with radio frequency wave detector 31; Full-deramp frequency mixer 22 input ends are connected with wave filter 21 with low noise amplification, receive the radiofrequency signal after amplification filtering of low noise amplification and wave filter 21 outputs, by itself and 61 mixing of radio-frequency transmitter local oscillation signal, obtain the intermediate-freuqncy signal after oblique; The first intermediate frequency amplification is connected with Full-deramp frequency mixer 22 with wave filter 23, the intermediate-freuqncy signal after going is tiltedly done to further amplification filtering, and export the intermediate-freuqncy signal after amplification filtering to phase-sensitive detector (PSD) 34.Described radio-frequency transmitter local oscillation signal 61 comes from frequency synthesizer 6, and this radio-frequency transmitter local oscillation signal 61 is for controlling the start trigger moment of radio-frequency transmitter 2.
Described tracker 3 comprises: radio frequency wave detector 31, phase-sensitive detector (PSD) 34, AD converter 33 and tracking filter 32; The radiofrequency signal of described radio frequency wave detector 31 received RF receiver 2 outputs is carried out detection, obtains the RF envelope signal, and this RF envelope signal is as the initial time benchmark of tracker 3, for calculating the start trigger moment of described each local oscillation signal; Described phase-sensitive detector (PSD) 34 carries out phase sensitive detection for the intermediate-freuqncy signal by radio-frequency transmitter 2 outputs, generates two-way base band orthogonal signal and inputs to AD converter 33; Described AD converter 33 is carried out the AD conversion, the generating digital signal for the described two-way base band orthogonal signal by receiving; Tracking filter 32 is processed the digital signal of AD converter 33 outputs by fast Fourier transform analysis, and, after the RF envelope signal in conjunction with 31 outputs of radio frequency wave detector, generates and the output spectrum analysis result.Tracker 3 exports above-mentioned result of spectrum analysis to frequency synthesizer 6, remove to adjust each local oscillation signal, the start trigger moment and the phase preserving of adjusting radio-frequency transmitter local oscillation signal 61, radio frequency sending set local oscillation signal 62, tracker local oscillation signal 63 and signal re-creator local oscillation signal 64 are synchronous; Then obtain next result of spectrum analysis, so circulation, until result of spectrum analysis is stabilized in the scope of setting, mean that this following-up type source scaler enters the tenacious tracking stage.Enter tenacious tracking after the stage, tracking filter 32 exports result of spectrum analysis to signal re-creator 4.Described tracker local oscillation signal 63 comes from frequency synthesizer 6, and this tracker local oscillation signal 63 is for controlling the start trigger moment of tracker 3.
Described signal re-creator 4 comprises: digital quantity generator 41, DA converter 42 and quadrature modulator 43; Described digital quantity generator 41, for receiving the result of spectrum analysis of tracker 3 outputs, is done spectrum analysis and time delay numerical evaluation by this result, generates baseband digital signal and exports it to DA converter 42; The input end of DA converter 42 is connected with digital quantity generator 41, and the described baseband digital signal received is carried out to the DA conversion, exports the two-way base-band analog signal of generation to quadrature modulator 43; Quadrature modulator 43 is connected with DA converter 42, and the described base-band analog signal received is modulated, and generates intermediate-freuqncy signal and exports radio frequency sending set 5 to.Described signal re-creator local oscillation signal 64 comes from frequency synthesizer 6, and this signal re-creator local oscillation signal 64 is for the start trigger moment of control signal reconstructor 4.
Described radio frequency sending set 5 comprises: the second intermediate frequency amplifies and wave filter 51, up-conversion mixer 52, power amplification and wave filter 53; The second intermediate frequency amplification is connected with quadrature modulator 43 with wave filter 51, and the intermediate-freuqncy signal that will receive from quadrature modulator 43 is carried out amplification filtering, and exports the intermediate-freuqncy signal after amplification filtering to up-conversion mixer 52;
Up-conversion mixer 52 amplifies and to be connected with wave filter 51 with the second intermediate frequency, to radiofrequency signal, and this radiofrequency signal is exported to the intermediate-freuqncy signal up-conversion the amplification filtering from the second intermediate frequency amplification and wave filter 51 receive to power amplification and wave filter 53; Power amplification is connected with up-conversion mixer 52 with wave filter 53, and the radiofrequency signal that will receive from up-conversion mixer 52 carries out amplification filtering and export sky to watching unit 1.Described radio frequency sending set local oscillation signal 62 comes from frequency synthesizer 6, and this radio frequency sending set local oscillation signal 62 is for controlling the start trigger moment of radio frequency sending set 5.
In the reconstruction of the tracking of above-mentioned radar signal and forward signal, emission process, described frequency synthesizer 6 not only provides local oscillation signal for radio-frequency transmitter 2, radio frequency sending set 5, tracker 3 and signal re-creator 4, i.e. radio-frequency transmitter local oscillation signal 61, radio frequency sending set local oscillation signal 62, tracker local oscillation signal 63 and signal re-creator local oscillation signal 64; This frequency synthesizer 6 also can provide the change over clock of clock signal as AD converter (33) and DA converter (42).Each local oscillation signal and the clock signal of frequency synthesizer 6 outputs have high stability, low spuious characteristic.
A kind of following-up type source scaler based on forward signal reconstruction system of the present invention obtains the many successes application in satellite radar is tested in-orbit.Actual test result shows: this forward signal is rebuild the following-up type source scaler of system can the tenacious tracking radar signal, and the radiofrequency signal of reconstruction accurately can be emitted to the radar receive window.The precision of the calibration results and degree of stability all are better than current international state-of-the-art.
Finally it should be noted that above embodiment is only unrestricted in order to technical scheme of the present invention to be described.Although with reference to embodiment, the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, technical scheme of the present invention is modified or is equal to replacement, do not break away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (6)
1. a following-up type source scaler of rebuilding system based on forward signal, comprise: unit (1) is watched in sky, radio-frequency transmitter (2), radio frequency sending set (5), it is characterized in that, this following-up type source scaler also comprises tracker (3), signal re-creator (4), frequency synthesizer (6), watch unit (1) and be connected with radio frequency sending set (5) with radio-frequency transmitter (2) respectively in described day;
Described tracker (3) is connected with radio-frequency transmitter (2), frequency synthesizer (6) and signal re-creator (4) respectively, this tracker (3) generates result of spectrum analysis and exports respectively frequency synthesizer (6) and signal re-creator (4) to after carrying out the fast Fourier transform analysis processing for the radiofrequency signal by radio-frequency transmitter (2) output;
Described signal re-creator (4) also is connected with radio frequency sending set (5) with frequency synthesizer (6), this signal re-creator (4) is carried out analyzing and processing for the result of spectrum analysis by tracker (3) output, after generating base-band analog signal and it being modulated to intermediate frequency, exports radio frequency sending set (5) to;
Described frequency synthesizer (6) is respectively radio-frequency transmitter (2), radio frequency sending set (5), tracker (3), signal re-creator (4) local oscillation signal is provided, each local oscillation signal is all adjusted and keeps phase place consistent by the result of spectrum analysis of tracker (3) output, and it is for controlling the start trigger moment of radio-frequency transmitter (2), radio frequency sending set (5), tracker (3), signal re-creator (4).
2. following-up type source scaler of rebuilding system based on forward signal according to claim 1, it is characterized in that, described tracker (3) comprising: radio frequency wave detector (31), phase-sensitive detector (PSD) (34), AD converter (33) and tracking filter (32);
The radiofrequency signal of described radio frequency wave detector (31) received RF receiver (2) output is carried out detection, obtain the RF envelope signal, this RF envelope signal is as the initial time benchmark of tracker (3), for calculating the start trigger moment of described each local oscillation signal;
Described phase-sensitive detector (PSD) (34) carries out phase sensitive detection for the intermediate-freuqncy signal by radio-frequency transmitter (2) output, generates two-way base band orthogonal signal and inputs to AD converter (33);
Described AD converter (33) is carried out the AD conversion, the generating digital signal for the described two-way base band orthogonal signal by receiving;
Tracking filter (32) is processed the digital signal of AD converter (33) output by fast Fourier transform analysis, and, after the RF envelope signal in conjunction with radio frequency wave detector (31) output, generates and the output spectrum analysis result.
3. following-up type source scaler of rebuilding system based on forward signal according to claim 1, is characterized in that, described signal re-creator (4) comprising: digital quantity generator (41), DA converter (42) and quadrature modulator (43);
Described digital quantity generator (41), for receiving the result of spectrum analysis of tracker (3) output, is done spectrum analysis and time delay numerical evaluation by this result, generates baseband digital signal and exports it to DA converter (42);
The input end of DA converter (42) is connected with digital quantity generator (41), and the described baseband digital signal received is carried out to the DA conversion, exports the two-way base-band analog signal of generation to quadrature modulator (43);
Quadrature modulator (43) is connected with DA converter (42), and the described base-band analog signal received is modulated, and generates intermediate-freuqncy signal and exports radio frequency sending set (5) to.
4. following-up type source scaler of rebuilding system based on forward signal according to claim 1 and 2, it is characterized in that, described radio-frequency transmitter (2) comprising: low noise amplification and wave filter (21), Full-deramp frequency mixer (22), the first intermediate frequency amplify and wave filter (23);
Described low noise amplification is watched unit (1) with the input end of wave filter (21) with sky and is connected, the reception sky is watched the radiofrequency signal of unit (1) output and is carried out amplification filtering, and its output terminal is connected with radio frequency wave detector (31) with Full-deramp frequency mixer (22) respectively;
Full-deramp frequency mixer (22) input end is connected with wave filter (21) with low noise amplification, receives the radiofrequency signal after amplification filtering of low noise amplification and wave filter (21) output, by itself and local oscillation signal mixing, obtains the intermediate-freuqncy signal after oblique;
The first intermediate frequency amplification is connected with Full-deramp frequency mixer (22) with wave filter (23), the intermediate-freuqncy signal after going is tiltedly done to further amplification filtering, and export the intermediate-freuqncy signal after amplification filtering to phase-sensitive detector (PSD) (34).
5. according to the described following-up type source scaler of rebuilding system based on forward signal of claim 1 or 3, it is characterized in that, described radio frequency sending set (5) comprising: the second intermediate frequency amplifies and wave filter (51), up-conversion mixer (52), power amplification and wave filter (53);
The second intermediate frequency amplification is connected with quadrature modulator (43) with wave filter (51), and the intermediate-freuqncy signal that will receive from quadrature modulator (43) is carried out amplification filtering, and exports the intermediate-freuqncy signal after amplification filtering to up-conversion mixer (52);
Up-conversion mixer (52) amplifies and is connected with wave filter (51) with the second intermediate frequency, to radiofrequency signal, and this radiofrequency signal is exported to the intermediate-freuqncy signal up-conversion from the second intermediate frequency amplifies the amplification filtering received with wave filter (51) to power amplification and wave filter (53);
Power amplification is connected with up-conversion mixer (52) with wave filter (53), and the radiofrequency signal that will receive from up-conversion mixer (52) carries out amplification filtering and export sky to watching unit (1).
6. according to the described following-up type source scaler of rebuilding system based on forward signal of one of claim 1-3, it is characterized in that, described frequency synthesizer (6) also provides the change over clock of clock signal as AD converter (33) and DA converter (42).
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103777184A (en) * | 2014-01-13 | 2014-05-07 | 中国科学院空间科学与应用研究中心 | Signal matching method for space-borne altimeter and active scaler |
| CN103792519A (en) * | 2014-01-13 | 2014-05-14 | 中国科学院空间科学与应用研究中心 | Spaceborne radar clock drifting on-orbit correction method based on active calibrator |
| CN103901412A (en) * | 2014-03-31 | 2014-07-02 | 中国科学院空间科学与应用研究中心 | Calibration method and system for pulse reconstruction and tracking type active calibrator |
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| CN111562568A (en) * | 2020-04-30 | 2020-08-21 | 北京卫星信息工程研究所 | Radar transmitting end, receiving end, frequency synchronization method and transceiving networking radar |
| CN113357964A (en) * | 2021-04-21 | 2021-09-07 | 中国人民解放军海军航空大学航空作战勤务学院 | Radar simulator |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4733239A (en) * | 1984-02-27 | 1988-03-22 | Schmitt Jerry C | Radar altimeter |
| CN101082670A (en) * | 2006-06-02 | 2007-12-05 | 中国科学院电子学研究所 | Active externally coefficient potentiometer and scaling method of wideband synthetic aperture radar |
| CN101718863A (en) * | 2009-11-13 | 2010-06-02 | 北方工业大学 | Signal processing method for active coding radiometric calibration |
| CN102565767A (en) * | 2011-12-23 | 2012-07-11 | 中国科学院空间科学与应用研究中心 | Ground verification instrument of satellite-based marine radar height gauge |
| CN102662163A (en) * | 2012-05-28 | 2012-09-12 | 中国电子科技集团公司第二十二研究所 | Digital control device based on microprocessor ARM (Advanced RISC Machines) and radar active calibrator |
| CN103163506A (en) * | 2011-12-14 | 2013-06-19 | 中国科学院电子学研究所 | Relative electrically small size passive dihedral angle outer scaler of wave band P polarization synthetic aperture radar (SAR) |
-
2013
- 2013-09-23 CN CN201310436084.9A patent/CN103454620B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4733239A (en) * | 1984-02-27 | 1988-03-22 | Schmitt Jerry C | Radar altimeter |
| CN101082670A (en) * | 2006-06-02 | 2007-12-05 | 中国科学院电子学研究所 | Active externally coefficient potentiometer and scaling method of wideband synthetic aperture radar |
| CN101718863A (en) * | 2009-11-13 | 2010-06-02 | 北方工业大学 | Signal processing method for active coding radiometric calibration |
| CN103163506A (en) * | 2011-12-14 | 2013-06-19 | 中国科学院电子学研究所 | Relative electrically small size passive dihedral angle outer scaler of wave band P polarization synthetic aperture radar (SAR) |
| CN102565767A (en) * | 2011-12-23 | 2012-07-11 | 中国科学院空间科学与应用研究中心 | Ground verification instrument of satellite-based marine radar height gauge |
| CN102662163A (en) * | 2012-05-28 | 2012-09-12 | 中国电子科技集团公司第二十二研究所 | Digital control device based on microprocessor ARM (Advanced RISC Machines) and radar active calibrator |
Non-Patent Citations (1)
| Title |
|---|
| 刘政林等: "定标器的设计与实现", 《电子学报》, vol. 34, no. 1, 31 January 2006 (2006-01-31), pages 185 - 188 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103777184A (en) * | 2014-01-13 | 2014-05-07 | 中国科学院空间科学与应用研究中心 | Signal matching method for space-borne altimeter and active scaler |
| CN103792519A (en) * | 2014-01-13 | 2014-05-14 | 中国科学院空间科学与应用研究中心 | Spaceborne radar clock drifting on-orbit correction method based on active calibrator |
| CN103777184B (en) * | 2014-01-13 | 2016-01-20 | 中国科学院空间科学与应用研究中心 | A kind of Signal Matching method of Satellite-borne Radar Altimeter and source scaler |
| CN103792519B (en) * | 2014-01-13 | 2016-03-09 | 中国科学院空间科学与应用研究中心 | A kind of spaceborne radar clock drift bearing calibration in-orbit based on source scaler |
| CN103901412A (en) * | 2014-03-31 | 2014-07-02 | 中国科学院空间科学与应用研究中心 | Calibration method and system for pulse reconstruction and tracking type active calibrator |
| CN107462874A (en) * | 2016-06-03 | 2017-12-12 | 英飞凌科技股份有限公司 | RF receivers with built-in self-test function |
| CN111562568A (en) * | 2020-04-30 | 2020-08-21 | 北京卫星信息工程研究所 | Radar transmitting end, receiving end, frequency synchronization method and transceiving networking radar |
| CN111562568B (en) * | 2020-04-30 | 2022-05-24 | 北京卫星信息工程研究所 | Radar transmitting end, receiving end, frequency synchronization method and transceiving networking radar |
| CN113357964A (en) * | 2021-04-21 | 2021-09-07 | 中国人民解放军海军航空大学航空作战勤务学院 | Radar simulator |
| CN113357964B (en) * | 2021-04-21 | 2023-01-31 | 中国人民解放军海军航空大学航空作战勤务学院 | Radar simulator |
| CN117724063A (en) * | 2024-01-25 | 2024-03-19 | 南京新频点电子科技有限公司 | Mobile unmanned aerial vehicle SAR radar active scaler device and working mode thereof |
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