CN102183742B - Coherent radar target echo signal simulating method and device - Google Patents
Coherent radar target echo signal simulating method and device Download PDFInfo
- Publication number
- CN102183742B CN102183742B CN 201110020851 CN201110020851A CN102183742B CN 102183742 B CN102183742 B CN 102183742B CN 201110020851 CN201110020851 CN 201110020851 CN 201110020851 A CN201110020851 A CN 201110020851A CN 102183742 B CN102183742 B CN 102183742B
- Authority
- CN
- China
- Prior art keywords
- signal
- pulse
- shaper
- radar
- output
- 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
Images
Abstract
The invention discloses a coherent radar target echo signal simulating method. The method comprises the following steps of: attenuating and directionally coupling a dominant oscillation signal sequentially and performing Doppler frequency modulation to obtain a simulative target speed signal; performing state conversion between a trigger pulse of a radar emitter and the simulative target speed signal and processing a conversion result into an initial pulse; processing another trigger pulse, which is subjected to the state conversion, of the radar emitter into a resetting pulse; processing the initial pulse to form a delay interval and a stop pulse; and performing a remainder computation on the delay interval, the stop pulse and the resetting pulse and outputting the delay interval, the stop pulse and the resetting pulse in a delayed way. The invention also discloses a coherent radar target echo signal simulating device. The coherent radar target echo signal simulating device realizes the attenuation, coupling and Doppler frequency modulation of the dominant oscillation signal and a simulative coherent radar target echo signal is obtained in the absent of a microwave source; the circuit of the device is simple; the target distance parameter simulating scope is large; and the precision is high.
Description
Technical field
The invention belongs to the signal processing technology field, specifically, relate to a kind of coherent radar target echo signal simulating method.
Background technology
In the sensitivity that detects radar receiver, angle tracking characteristic, the missile guidance instruction path, during the technical parameters such as receiver Doppler frequency covering, need microwave source to produce the radar echo signal of full coherent in radio-frequency range, the method of guinea pig target echo mainly is to utilize the trigger pulse control microwave signal source of radar or other microwave source and the specified Doppler shift that superposes to realize at present, owing to there are at least two microwave sources, all microwave sources are relatively poor in the degree of stability of radio-frequency range, and the purity of frequency spectrum is lower, always there is phase noise, the PD radar detects moving-target or the pulse Doppler detection in this case, will produce decoy, cause the radar false alarm phenomenon, and in process of pulse-compression, can cause the distance side lobe of target, thereby affect the detection of radar performance.
Based on this, how to invent a kind of signal imitation method, be implemented in without the problem that solves the signal imitation of PD radar full phase parameter radar transient echo under the condition of microwave source.
Summary of the invention
The present invention is low in order to solve the existing radar echo signal purity of frequency spectrum, can't realize the problem of full coherent, a kind of coherent radar target echo signal simulating method is provided, avoid using two or more microwave sources, the radar echo signal purity of frequency spectrum of simulation is high, can realize full coherent.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:
A kind of coherent radar target echo signal simulating method may further comprise the steps:
Radar master oscillator produces the main signal that shakes, and described master is shaken signal carries out signal attenuation successively and the signal directional couple obtains CF signal, described CF signal is carried out the Doppler frequency modulation obtain the simulated target rate signal;
Radar transmitter trigger pulse and described simulated target rate signal are carried out the state conversion simultaneously, and transformation result is processed the formation initial pulse, will process through the radar transmitter trigger pulse other a tunnel of state conversion simultaneously forming quenching pulse;
Described initial pulse is carried out the interval process, form delay interval and stop pulse;
Delay interval, stop pulse and quenching pulse are carried out remainder calculate, obtain postponing remainder, and described delay remainder is postponed output, obtain simulating the full phase parameter radar target echo signal.
Further, also comprise the step of the radar clock pulse being carried out the state conversion.
Further again, the concrete steps of described Doppler frequency modulation comprise:
Utilize modulation signal that CF signal is carried out the Doppler frequency modulation, obtain the simulated target rate signal.
Preferably, described Doppler frequency modulation adopts the DDS technology to produce the Doppler frequency modulation signal.
Further, also comprise the step of the CF signal after the Doppler frequency modulation being selected output channel, output channel comprises first passage and second channel, in described first passage, carry out controllable attenuation output, in described second channel, carry out program control stepping decay output, output simulated target rate signal after the input signal described first passage of process or the second channel decay.
Further, described delay output is specially:
The Third Road of the radar transmitter trigger pulse of process state conversion carries out front and back to be processed along forming, form respectively rising edge signal and rear along signal, and will postpone remainder respectively with described rising edge signal with carry out delay disposal along signal afterwards, the final simulation full phase parameter radar target echo signal that forms.
Based on above-mentioned a kind of coherent radar target echo signal simulating method, the invention provides a kind of full phase parameter radar target echo signal analogue means, comprise radar master oscillator, a PIN controllable attenuator, directional coupler and PIN modulator, described radar master oscillator produces the main signal that shakes, successively after the coupling output through the decay of a PIN controllable attenuator and directional coupler, signal is delivered to the PIN modulator modulates, output simulated target rate signal;
Also comprise state converter, the initial pulse shaper, the interval shaper, the remainder shaper, quenching pulse shaper and delayer, described simulated target rate signal is sent to state converter, and transformation result is delivered to the initial pulse shaper forms initial pulse, described initial pulse is delivered to the interval shaper, shaper output delay interval, interval and stop pulse are to the remainder shaper, to be delivered to simultaneously the quenching pulse shaper through the radar transmitter trigger pulse of state conversion, described quenching pulse shaper output quenching pulse is to the remainder shaper, described remainder shaper calculates and postpones remainder and be delivered to delayer to postpone output, obtains simulating the full phase parameter radar target echo signal.
Also comprise modulation signal generator and clock signal oscillator, described modulation signal generator produces modulation signal and is delivered to the PIN modulator, and described clock signal oscillator is interval shaper, remainder shaper input clock synchronizing signal.
Further again, also comprise microwave coaxial switch, the 2nd PIN controllable attenuator and programmable step attenuator, the modulation signal of PIN modulator output is delivered to the 2nd PIN controllable attenuator or programmable step attenuator by coaxswitch.
Further, described full phase parameter radar target echo signal analogue means comprises that also front and back are along shaper, described delayer comprises forward position delayer and trailing edge delay device, the clock signal oscillator is that front and back are along shaper, forward position delayer and trailing edge delay device provide clock sync signal, before and after described state converter will be delivered to through the radar transmitter trigger pulse of state conversion along shaper generate rising edge signal and after along signal, and with described rising edge signal and rear along signal one by one correspondence input to forward position delayer and trailing edge delay device, before described, the trailing edge delay device connects the radar transmitter trigger-delay circuit, the signal of forward position delayer and the output of trailing edge delay device is postponed output obtain simulating the full phase parameter radar target echo signal.
Compared with prior art, advantage of the present invention and good effect are: coherent radar target echo signal simulating method of the present invention, by the master that radar master oscillator the is produced signal coupling output of shaking, then carry out the Doppler frequency modulation and produce target velocity information; Transmitter triggering punching and linear frequency modulation ripple door are postponed by Algorithm of Range Ambiguity Resolution, produce target range information, thereby the combining target velocity information produces simulation full phase parameter radar target echo signal, need not use two or more microwave sources, thereby the phase noise of having avoided a plurality of microwave sources to bring, and the phenomenon such as signal spectrum purity reduction, improved the radar performance accuracy of detection.
After reading by reference to the accompanying drawings the detailed description of embodiment of the present invention, other characteristics of the present invention and advantage will become clearer.
Description of drawings
Fig. 1 is a kind of embodiment process flow diagram of coherent radar target echo signal simulating method proposed by the invention;
Fig. 2 is the additional part of process flow diagram among Fig. 1;
Fig. 3 is the second embodiment process flow diagram of coherent radar target echo signal simulating method proposed by the invention;
Fig. 4 is the synoptic diagram of full phase parameter radar target echo signal analogue means proposed by the invention.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in more detail.
Embodiment one, and as shown in Figure 1 and Figure 2, the process flow diagram for the coherent radar target echo signal simulating method of present embodiment comprises:
S01, the master that radar master oscillator the is produced signal that shakes carries out attenuation processing.
Concrete, signal power is larger because the master that radar master oscillator produces shakes, for convenient calibration, and the power that signal attenuation need to be required to calibration.
S02 carries out the signal that shakes of the master after the decay directional couple and processes.
Concrete, the described master signal that shakes is high-frequency signal, and in order to guarantee the transmission of signal one direction, the signal that described master need to be shaken carries out directional couple, obtains the CF signal through directional couple.
S03 carries out Doppler modulation with described CF signal.
Concrete, for so that CF signal can the simulated target velocity information, and the velocity variations Informational Expression is the variation of signal frequency, therefore, CF signal need to be carried out Doppler modulation, target velocity information in the loading.The concrete steps of described Doppler frequency modulation comprise:
Utilize modulation signal that CF signal is carried out the Doppler frequency modulation, obtain the simulated target rate signal.
S04, the state conversion.
Concrete, the emitter trigger pulse is divided into two-way at least, the simulated target rate signal that radar transmitter trigger pulse and above-mentioned steps are obtained carries out the state conversion simultaneously, so that signal pulse obtains the processing such as shaping and repairing, the coincidence circuit requirement, and with state switching signal processing formation initial pulse, will carry out quenching pulse through the radar transmitter trigger pulse other a tunnel of state conversion simultaneously and process, form quenching pulse, be used for the pulse zero clearing.
S05 forms initial pulse.
Concrete, will process through the emission trigger pulse of state conversion with through the simulated target rate signal of state conversion, form initial pulse.
S06 forms delay interval and stop pulse.
Concrete, for the simulated target range information, described initial pulse need to be postponed, namely saidly initial pulse is carried out the interval process, obtain delay interval information and be used for the stop pulse that gating pulse stops.
S07, remainder calculates.
Concrete, delay interval, stop pulse and quenching pulse are carried out remainder to be calculated, obtain postponing remainder, the essence of this step is to adopt the fuzzy distance solution algorithm for inversion, utilize remainder theorem, simulated target Range compress, Fuzzy Calculation pulse number, and with described delay remainder delay output, obtain simulating the full phase parameter radar target echo signal.
Described delay output is specially:
S08, Third Road radar transmitter trigger pulse through the state conversion carries out front and back along forming processing, form respectively rising edge signal and rear along signal, and will postpone remainder respectively with described rising edge signal with carry out delay disposal along signal afterwards, form forward position pulse and trailing edge after postponing.
S09 jointly inputs to the emitter trigger-delay circuit with the forward position pulse after the described delay and trailing edge again and carries out signal delay, the final simulation full phase parameter radar target echo signal that forms.
The coherent radar target echo signal simulating method of present embodiment by the master that radar master oscillator the is produced signal coupling output of shaking, then carries out the Doppler frequency modulation and produces target velocity information; Transmitter triggering punching and linear frequency modulation ripple door are postponed by Algorithm of Range Ambiguity Resolution, produce target range information, thereby the combining target velocity information produces simulation full phase parameter radar target echo signal, need not use two or more microwave sources, thereby the phase noise of having avoided a plurality of microwave sources to bring, and the phenomenon such as signal spectrum purity reduction, improved the radar performance accuracy of detection.
Embodiment two, for coherent radar target echo signal simulating method another one embodiment of the present invention, referring to shown in Figure 3, based on full phase parameter radar echoed signal analogy method embodiment one of the present invention, comprise step S01～S07, and its difference is:
After step S03, also comprise step S03 ', select output channel.
Concrete, selecting output channel S03 ' to comprise afterwards step S03a and step S03b, described step S03a is controllable attenuation output, step S03b is program control stepping decay output, by two different decay output channels are set, so that signal output has more dirigibility, it is suitable to select according to different decay needs
The decay passage has strengthened the widely applicable property of method.
Also comprise in step S04 state conversion is carried out in the radar clock pulse, described radar clock pulse is pulse during with synchronous clean of radar pulse, and its effect is the transmission that realizes that Radar Pulse Sequence is unified, orderly.
In step S03, carry out the preferred DDS of employing of Doppler frequency modulation technology and produce the Doppler frequency modulation signal.
Fig. 4 is a kind of embodiment of full phase parameter radar target echo signal analogue means of the present invention, comprise radar master oscillator, the one PIN controllable attenuator, directional coupler and PIN modulator, described radar master oscillator produces the main signal that shakes, successively after the coupling output through the decay of a PIN controllable attenuator and directional coupler, signal is delivered to the PIN modulator carries out Doppler modulation, also comprise modulation signal generator, described modulation signal generator produces modulation signal and is delivered to the PIN modulator, in the PIN modulator, utilize modulation signal that master's signal that shakes is carried out Doppler modulation, the output modulation signal.
Also comprise microwave coaxial switch, the 2nd PIN controllable attenuator and programmable step attenuator, the modulation signal of PIN modulator output passes through coaxswitch, select output channel by coaxswitch, modulation signal is delivered to the 2nd PIN controllable attenuator or programmable step attenuator, after one of them attenuator decay, output simulated target rate signal.
Also comprise state converter, the initial pulse shaper, the interval shaper, the remainder shaper, quenching pulse shaper and delayer, described simulated target rate signal is sent to state converter, and transformation result is delivered to the initial pulse shaper forms initial pulse, described initial pulse is delivered to the interval shaper, shaper output delay interval, interval and stop pulse are to the remainder shaper, to be delivered to simultaneously the quenching pulse shaper through the radar transmitter trigger pulse of state conversion, described quenching pulse shaper output quenching pulse is to the remainder shaper, described remainder shaper calculates and postpones remainder and be delivered to delayer to postpone output, obtains simulating the full phase parameter radar target echo signal.
In the remainder shaper, postpone remainder by quenching pulse, clock signal pulse, delay interval and four signal formations of stop pulse, postpone remainder and draw by following formula:
T
The interval=n * T
Trigger pulse+ T
Postpone remainder
Wherein, T
The intervalBe time delay, n is the impulse ejection number, T
Postpone remainderThe delay remainder of trying to achieve for needs.
In the present embodiment, described full phase parameter radar target echo signal analogue means comprises that also front and back are along shaper, described delayer comprises forward position delayer and trailing edge delay device, will through the radar transmitter trigger pulse of state conversion wherein one the tunnel be delivered to before and after along shaper generate rising edge signal and after along signal, and with described rising edge signal and rear along signal one by one correspondence input to forward position delayer and trailing edge delay device, the remainder of remainder shaper output is delivered to respectively forward position delayer and trailing edge delay device, and the signal that signal and the trailing edge delay device of the output of forward position delayer are exported is delivered to the radar transmitter trigger-delay circuit, final output simulation full phase parameter radar target echo signal.
In order to improve the equipment job stability, also be provided with the remainder latch, the remainder that the remainder shaper is exported is input to the remainder latches.
The clock signal oscillator of this enforcement is the 14MHZ oscillator, produces the clock signal of 14MHZ frequency, for interval shaper, remainder shaper, front and back provide clock signal along shaper, forward position delayer and trailing edge delay device, so that described each device keeps synchronously.
The instruction such as signal attenuation, delay interval is by the unified management of PC104 control system and control in the present embodiment.
The full phase parameter radar target echo signal analogue means of present embodiment, realized the decay with radar king oscillator output signal, coupling and Doppler frequency modulation, simulate target velocity information, the method that adopts the fuzzy distance solution algorithm for inversion to combine with pulse daley is finished the target range simulation, so that circuit system is simple, be implemented under the condition without microwave source, solve the problem of full phase parameter radar transient echo signal imitation, the target distance parameter simulation context increases, adopt PHASE-LOCKED LOOP PLL TECHNIQUE to realize high precision, high temperature is spent clock surely, guarantee to produce range accuracy and reach 10 meters, distance range reaches 400 kilometers.
Certainly; above-mentioned explanation is not to be limitation of the present invention; the present invention also is not limited in above-mentioned giving an example, and the variation that those skilled in the art make in essential scope of the present invention, remodeling, interpolation or replacement also should belong to protection scope of the present invention.
Claims (9)
1. coherent radar target echo signal simulating method is characterized in that: may further comprise the steps:
Radar master oscillator produces the main signal that shakes, and described master is shaken signal carries out signal attenuation successively and the signal directional couple obtains CF signal, described CF signal is carried out the Doppler frequency modulation obtain the simulated target rate signal;
Radar transmitter trigger pulse and described simulated target rate signal are carried out the state conversion, and transformation result is processed the formation initial pulse, will process through the radar transmitter trigger pulse other a tunnel of state conversion simultaneously forming quenching pulse;
Described initial pulse is carried out the interval process, form delay interval and stop pulse;
Delay interval, stop pulse and quenching pulse are carried out remainder calculate, obtain postponing remainder, and described delay remainder is postponed output, obtain simulating the full phase parameter radar target echo signal;
Also comprise the step of the CF signal after the Doppler frequency modulation being selected output channel, output channel comprises first passage and second channel, in described first passage, carry out controllable attenuation output, in described second channel, carry out program control stepping decay output, output simulated target rate signal after the input signal described first passage of process or the second channel decay.
2. coherent radar target echo signal simulating method according to claim 1 is characterized in that: also comprise the step of the radar clock pulse being carried out the state conversion.
3. coherent radar target echo signal simulating method according to claim 1 and 2 is characterized in that: the concrete steps of described Doppler frequency modulation comprise:
Utilize modulation signal that CF signal is carried out the Doppler frequency modulation, obtain the simulated target rate signal.
4. coherent radar target echo signal simulating method according to claim 3 is characterized in that: described Doppler frequency modulation employing DDS technology generation Doppler frequency modulation signal.
5. coherent radar target echo signal simulating method according to claim 1 and 2 is characterized in that: described delay output is specially:
Third Road radar transmitter trigger pulse through the state conversion carries out front and back along forming processing, form respectively rising edge signal and rear along signal, and will postpone remainder respectively with described rising edge signal with carry out delay disposal along signal afterwards, the final simulation full phase parameter radar target echo signal that forms.
6. full phase parameter radar target echo signal analogue means, it is characterized in that: comprise radar master oscillator, a PIN controllable attenuator, directional coupler and PIN modulator, described radar master oscillator produces the main signal that shakes, successively after the coupling output through the decay of a PIN controllable attenuator and directional coupler, signal is delivered to the PIN modulator modulates, output simulated target rate signal;
Also comprise state converter, the initial pulse shaper, the interval shaper, the remainder shaper, quenching pulse shaper and delayer, described simulated target rate signal is sent to state converter, and transformation result is delivered to the initial pulse shaper forms initial pulse, described initial pulse is delivered to the interval shaper, shaper output delay interval, interval and stop pulse are to the remainder shaper, to be delivered to simultaneously the quenching pulse shaper through the radar transmitter trigger pulse of state conversion, described quenching pulse shaper output quenching pulse is to the remainder shaper, described remainder shaper calculates and postpones remainder and be delivered to delayer to postpone output, obtains simulating the full phase parameter radar target echo signal.
7. full phase parameter radar target echo signal analogue means according to claim 6, it is characterized in that: also comprise modulation signal generator and clock signal oscillator, described modulation signal generator produces modulation signal and is delivered to the PIN modulator, and described clock signal oscillator is interval shaper, remainder shaper input clock synchronizing signal.
8. according to claim 6 or 7 described full phase parameter radar target echo signal analogue means, it is characterized in that: also comprise microwave coaxial switch, the 2nd PIN controllable attenuator and programmable step attenuator, the modulation signal of PIN modulator output is delivered to the 2nd PIN controllable attenuator or programmable step attenuator by coaxswitch.
9. according to claim 6 or 7 described full phase parameter radar target echo signal analogue means, it is characterized in that: described full phase parameter radar target echo signal analogue means comprises that also front and back are along shaper, described delayer comprises forward position delayer and trailing edge delay device, the clock signal oscillator is that front and back are along shaper, forward position delayer and trailing edge delay device provide clock sync signal, before and after described state converter will be delivered to through the radar transmitter trigger pulse of state conversion along shaper generate rising edge signal and after along signal, and with described rising edge signal and rear along signal one by one correspondence input to forward position delayer and trailing edge delay device, before described, the trailing edge delay device connects the radar transmitter trigger-delay circuit, the signal of forward position delayer and the output of trailing edge delay device is postponed output obtain simulating the full phase parameter radar target echo signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110020851 CN102183742B (en) | 2011-01-12 | 2011-01-12 | Coherent radar target echo signal simulating method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110020851 CN102183742B (en) | 2011-01-12 | 2011-01-12 | Coherent radar target echo signal simulating method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102183742A CN102183742A (en) | 2011-09-14 |
| CN102183742B true CN102183742B (en) | 2013-05-29 |
Family
ID=44569942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110020851 Expired - Fee Related CN102183742B (en) | 2011-01-12 | 2011-01-12 | Coherent radar target echo signal simulating method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102183742B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508215B (en) * | 2011-09-29 | 2015-01-07 | 北京振兴计量测试研究所 | Double-channel active and passive radar integrated simulator |
| CN102590794B (en) * | 2012-02-28 | 2013-10-30 | 北京航空航天大学 | Broadband coherent radar target simulator |
| CN103529433A (en) * | 2012-07-05 | 2014-01-22 | 上海无线电设备研究所 | Linear frequency modulation radar target speed simulation method and echo signal simulation source |
| CN103869806B (en) * | 2014-03-18 | 2017-01-04 | 江苏杰瑞科技集团有限责任公司 | A kind of photoelectric video target echo analog |
| AT519540B1 (en) * | 2016-12-29 | 2018-10-15 | Avl List Gmbh | Switching device for a Radielielemulator and Radarzielemulator with such a switching device |
| CN109085543B (en) * | 2018-08-24 | 2020-08-18 | 斯凯瑞利（北京）科技有限公司 | Linear frequency modulation signal generator |
| CN110412528B (en) * | 2019-08-02 | 2022-09-13 | 西安邮电大学 | Projectile echo simulation device and method for gun position reconnaissance and calibration radar |
| CN113687320A (en) * | 2021-08-17 | 2021-11-23 | 西安天和防务技术股份有限公司 | Radar echo simulation method and device, terminal equipment and storage medium |
| CN114994639B (en) * | 2022-08-08 | 2022-11-15 | 四川吉埃智能科技有限公司 | Method for realizing sub-centimeter-level measurement precision by laser scanning radar |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7170440B1 (en) * | 2005-12-10 | 2007-01-30 | Landray Technology, Inc. | Linear FM radar |
| US7463187B2 (en) * | 2006-09-27 | 2008-12-09 | Honeywell International Inc. | Method and system of improving altimeter accuracy by use of a separate peak return signal tracking |
-
2011
- 2011-01-12 CN CN 201110020851 patent/CN102183742B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN102183742A (en) | 2011-09-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102183742B (en) | Coherent radar target echo signal simulating method and device | |
| CN105629207A (en) | Radar signal processing system based on DRFM (Digital Radio-Frequency Memory) technology and dense target jamming generation method | |
| CN102508215B (en) | Double-channel active and passive radar integrated simulator | |
| CN105158763A (en) | Meteorological radar system based on continuous wave system and control method | |
| CN106353739A (en) | Multiple phase sectionalized modulation-based radar interference method | |
| CN105891791B (en) | Multiple Target Signals generation method and radio frequency multi-target signal | |
| CN104820211A (en) | System And Method For Avoiding DC Bias In A Homodyne Receiver | |
| CN103558590A (en) | Radar signal analog source system and signal analog method thereof | |
| CN103529433A (en) | Linear frequency modulation radar target speed simulation method and echo signal simulation source | |
| CN107346017A (en) | The intensive target simulation method of pulse compression radar based on frequency matching filtering | |
| CN116136584B (en) | FPGA and DDR 4-based large-bandwidth beyond-view-range radar distance simulation device and method | |
| CN112666529A (en) | Adaptive interference method for linear frequency modulation pulse compression radar | |
| CN106680805A (en) | Method for tracing target with self-adaptive variable waveform | |
| CN106707271A (en) | Adaptive angle tracking method based on digital phase-locked loop | |
| CN107064876A (en) | Indoor locating system and localization method based on radio sensing network and ultrasonic wave | |
| CN106324589B (en) | A kind of measurement method of parameters and electronic equipment of mobile target | |
| CN103095334A (en) | Implementation method for preventing forwarding interference of frequency modulation radio fuze | |
| JPS5821231B2 (en) | Pulse radar device | |
| CN105245268A (en) | Signal processor based on dual-channel frequency diversity technology and signal processing method thereof | |
| KR101647769B1 (en) | System and Method for transferring air track information through multi-path | |
| CN107561524A (en) | Pseudo-random Code Phase Modulation continuous wave surveys high equipment and the high method of survey with interrupting continuous wave multi-mode | |
| CN102803986A (en) | Radar device | |
| CN109613538B (en) | Dual-mode automotive detection millimeter wave radar frame structure and design method thereof | |
| CN114676080B (en) | Radar signal simulation generation method based on SOC platform | |
| CN103248342B (en) | A kind of pulse delay circuit and scan method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130529 Termination date: 20140112 |