WO2007043475A1 - レーダ装置とレーダサイト間調整方法 - Google Patents
レーダ装置とレーダサイト間調整方法 Download PDFInfo
- Publication number
- WO2007043475A1 WO2007043475A1 PCT/JP2006/320110 JP2006320110W WO2007043475A1 WO 2007043475 A1 WO2007043475 A1 WO 2007043475A1 JP 2006320110 W JP2006320110 W JP 2006320110W WO 2007043475 A1 WO2007043475 A1 WO 2007043475A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- radar
- signal
- transmission signal
- transmission
- control unit
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/08—Systems for measuring distance only
- G01S13/10—Systems for measuring distance only using transmission of interrupted, pulse modulated waves
- G01S13/24—Systems for measuring distance only using transmission of interrupted, pulse modulated waves using frequency agility of carrier wave
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/87—Combinations of radar systems, e.g. primary radar and secondary radar
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/95—Radar or analogous systems specially adapted for specific applications for meteorological use
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/91—Radar or analogous systems specially adapted for specific applications for traffic control
- G01S2013/916—Airport surface monitoring [ASDE]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
Definitions
- the present invention relates to an adjustment method for eliminating radio wave interference that occurs between a radar apparatus and a radar site.
- a radio wave hereinafter referred to as a transmission signal
- an interference station another nearby radar device
- Radio waves hereinafter referred to as echo signals
- Interference occurs when the center frequency of the received signal is close to the center frequency of the transmitted signal.
- conventional radar equipment has an interference wave cancel function (“Revised radar technology” supervised by Takashi Yoshida, published by the Institute of Electronics, Information and Communication Engineers, page 217).
- the interference wave removal function As an example of the interference wave removal function, amplitude comparison between echo signals of a predetermined distance in a continuous pulse repetition period (PRI) is performed, and an echo signal having a large amplitude difference is regarded as an interference wave. There is a method to replace the echo signal with the amplitude value of the echo signal received by the previous PRI.
- PRI continuous pulse repetition period
- interference between the noise signals greatly affects the detection accuracy of the echo signal.
- a nors compression radar system that uses short pulses and long pulses in the PRF, short pulses for short distance leak into the long pulse area for long distances, and the echo detection accuracy of long pulses decreases.
- An object of the present invention is to provide a radar-based radar, regardless of whether the repetition frequency (PRF) of the interfering station is close, the number of interfering stations is large, or a plurality of types of transmission pulse signals are used.
- a radar apparatus capable of reducing the influence on the signal processing data, thereby reducing the influence of the secondary echo or interference between the noise signals and improving the detection accuracy of the true echo signal; It is to provide a method for adjusting between radar sites.
- a radar apparatus includes a generation unit that selectively generates a plurality of transmission signals having different center frequencies within an assigned frequency band, and a center of the transmission signal each time the transmission signal is emitted. And a control unit for changing the frequency.
- the radar apparatus includes a generation unit that selectively generates transmission signals of a plurality of types of pulse widths or modulation methods, and the type of transmission signal each time the transmission signal is emitted. And a control unit for changing.
- each radar site selectively generates a plurality of transmission signals having different center frequencies within an assigned frequency band, and the transmission signal A control unit that switches and controls the center frequency of the transmission signal each time it is launched, and controls the control unit so that the radar sites do not overlap each other in cooperation with each other.
- FIG. 1 is a block diagram showing an example of the configuration of a radar apparatus according to an embodiment of the present invention.
- FIG. 2 is a timing diagram showing an example in which interference waves are mixed and superimposed on a conventional radar device.
- FIG. 3 shows that the present invention is applied to the interfered station and the center frequency is changed for each transmission.
- the PRF and signal waveform of the interference station are the same as the interfered station and the center frequency for each transmission is constant.
- FIG. 6 is a timing diagram illustrating an example when assumed.
- FIG. 4 is a timing diagram showing an example in which the present invention is applied to both the interfered station and the interfering station to change the center frequency for each transmission.
- FIG. 1 is a block diagram showing an example of the configuration of a radar apparatus according to an embodiment of the present invention.
- a timing control unit 11 controls processing of the entire apparatus, and mainly controls processing timings of the transmission type signal generation unit 12, the frequency control unit 13, and the reception signal processing unit 14.
- the transmission type signal generation unit 12 generates a transmission type signal having a predetermined PRF, pulse width, and modulation method in accordance with an instruction from the timing control unit 11.
- the frequency control unit 13 controls the oscillation frequency of the local oscillator 15 and the pass frequency band of the first bandpass filter 17, and the received signal processing unit 14 performs processing for detecting a target from the received echo signal.
- the transmission type signal generated by the transmission type signal generation unit 12 is mixed with the local signal output from the local oscillator 15 by the first mixer 16, and RF (Radio) Frequency) band signal.
- the first frequency band filter 17 removes the video frequency component signal, and only the desired frequency component signal is extracted.
- the signal extracted here is amplified by the first amplifier 18 to become a transmission signal, supplied to the antenna unit 20 by the circulator 19, and radiated from the antenna unit 20 to the space.
- the echo signal radiated into the space and reflected by the target is captured by the antenna unit 20 and supplied to the second amplifier 21 by the circulator 19.
- the echo signal supplied to the second amplifier 21 is amplified by the second amplifier 21 and frequency-converted into a signal sent from the local oscillator 15 and a signal in the IF (intermediate frequency) band by the second mixer 22.
- the second band pass filter 23 removes the signal of the video frequency component and unnecessary signals such as interference waves and secondary echoes having different center frequencies, and only the signal of the desired frequency component is extracted.
- the extracted signal is supplied to the reception signal processing unit 14 and subjected to processing such as interference wave removal.
- a feature of the present embodiment is that each time a transmission signal is emitted, the frequency control unit 13 switches the oscillation frequency of the local oscillator 15 and the frequency characteristics of the first bandpass filter 17 to be radiated into space. It has a function to vary the transmission frequency of the transmission signal.
- FIG. 2 shows an example in which interference waves are mixed and superimposed on a conventional radar device.
- the PRF, signal waveform, and center frequency of this interference wave are the same as those of the transmission signal from the interfered station. Assume that there is. In this case, the level of the echo signal detected after passing through the interference wave elimination function becomes higher than the true echo signal, so there is a possibility that the conventional radar apparatus will make a false detection.
- Fig. 3 shows that the present invention is applied to an interfered station, and the center frequency of the transmission signal is changed to fl, 12, f3, f4 for each transmission.
- the signal waveform is the same as that of the transmitted signal from the interfered station, and the center frequency for each transmission is assumed to be constant at f3.
- the interference wave is removed from the echo signal when it passes through the second bandpass filter 23 except in the case of the center frequency force of the interfered station 3.
- the signal level is higher than that of signals of other frequencies, so that it can be removed by the conventional interference wave removal function, and this allows the true echo to be removed. Signal detection is possible.
- FIG. 4 shows that the present invention is applied to the interfered station, and the center frequency is changed to fl, 12, ⁇ , and f4 for each transmission.
- the center frequency is changed to f4, ⁇ , 12, and fl for each transmission so that they do not overlap with each other at different timings.
- the radar apparatus having the above configuration changes the center frequency of a transmission signal to be emitted by using a plurality of frequencies within the allocated frequency band for each transmission, and thereby the interference wave and The effect of secondary echo is reduced. Therefore, even when the repetition frequency (PRF) of the interfering station is close or the number of interfering stations is large, the influence of the interference wave on the received / processed data of the radar device can be reduced. Accordingly, it is possible to reduce the influence of the secondary echo and improve the detection accuracy of the true echo signal.
- PRF repetition frequency
- the frequency control unit 13 changes the oscillation frequency of the local oscillator 15 and the frequency characteristics of the first bandpass filter 17 for each transmission to vary the transmission frequency of the transmission signal radiated to the space.
- the present invention is not limited to this, the frequency of the transmission seed signal transmitted from the transmission seed signal generation unit 12, the frequency of the signal processed by the reception signal processing unit 14, the first and second When the frequency characteristics of the bandpass filters 17 and 23 are changed, or when only the oscillation frequency of the local oscillator 15 is changed, or the frequency of the transmission seed signal transmitted from the transmission seed signal generator 12 and the received signal processing section This can be realized even when the frequency of the 14 signals to be processed is changed.
- the type of transmission seed signal can be realized by applying an unmodulated pulse signal, amplitude and frequency modulated pulse signal, and can also be applied to a double superheterodyne transmission / reception system.
- the function of the second band pass filter 23 that removes unnecessary signals such as interference waves with different center frequencies and secondary echoes and extracts only signals of the desired frequency components It can also be realized by digital processing.
- the present invention when the present invention is applied to all radar devices of radar sites in the same assigned frequency band, the frequency of the transmission signal does not overlap each other in cooperation with each other. By controlling the switching, mutual interference is avoided. Therefore, there is a possibility that the allocated frequency band can be narrowed, and the invention is very effective in terms of effective use of the frequency band.
- the present invention is not limited to the above embodiments as they are, but can be embodied by modifying the constituent elements without departing from the spirit of the invention in the implementation stage.
- Various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiments. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, constituent elements over different embodiments may be appropriately combined.
- Industrial applicability The present invention is applicable to all primary radar devices such as ASR (Airport Surveillance Radar), PAR (Precision Approach Radar), and WZR (Weather Radar).
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2006800310374A CN101248367B (zh) | 2005-10-07 | 2006-10-06 | 雷达装置和雷达站间调整方法 |
JP2007539922A JP5221142B2 (ja) | 2005-10-07 | 2006-10-06 | レーダ装置とレーダサイト間調整方法 |
EP06811437.0A EP1933164B1 (en) | 2005-10-07 | 2006-10-06 | Radar device and inter-radar site adjustment method |
US11/724,228 US20070229349A1 (en) | 2005-10-07 | 2007-03-15 | Radar device and method for adjusting among radar sites |
US12/018,419 US7864098B2 (en) | 2005-10-07 | 2008-01-23 | Radar device and method for adjusting among radar sites |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005295459 | 2005-10-07 | ||
JP2005-295459 | 2005-10-07 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/724,228 Continuation US20070229349A1 (en) | 2005-10-07 | 2007-03-15 | Radar device and method for adjusting among radar sites |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007043475A1 true WO2007043475A1 (ja) | 2007-04-19 |
Family
ID=37942718
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/320110 WO2007043475A1 (ja) | 2005-10-07 | 2006-10-06 | レーダ装置とレーダサイト間調整方法 |
Country Status (5)
Country | Link |
---|---|
US (2) | US20070229349A1 (ja) |
EP (1) | EP1933164B1 (ja) |
JP (1) | JP5221142B2 (ja) |
CN (1) | CN101248367B (ja) |
WO (1) | WO2007043475A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102819011A (zh) * | 2011-06-10 | 2012-12-12 | 古野电气株式会社 | 干涉信号去除装置、雷达装置、以及干涉信号去除方法 |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7702291B2 (en) * | 2003-09-15 | 2010-04-20 | Broadcom Corporation | Radar detection from pulse record with interference |
JP5890087B2 (ja) * | 2010-05-06 | 2016-03-22 | 古野電気株式会社 | 探知装置 |
US8902101B1 (en) * | 2011-09-28 | 2014-12-02 | Rockwell Collins, Inc. | System for and method of wind shear detection |
KR20140080718A (ko) * | 2012-12-14 | 2014-07-01 | 한국전자통신연구원 | 주파수 다중화와 직교파형을 이용한 단파 해수면 레이더의 주파수 재사용 장치 및 방법 |
JP6334507B2 (ja) * | 2013-02-12 | 2018-05-30 | 古野電気株式会社 | レーダ装置、及び干渉抑制方法 |
JP2015224899A (ja) * | 2014-05-26 | 2015-12-14 | 株式会社デンソー | 車載レーダ装置 |
CN105068050B (zh) * | 2015-08-21 | 2017-11-07 | 西安空间无线电技术研究所 | 一种超高分辨率星载sar系统的时序确定方法 |
KR102062321B1 (ko) * | 2018-01-25 | 2020-01-03 | 영남대학교 산학협력단 | 대상체의 동작을 인식하기 위하여 복수개의 상이한 주파수들을 이용하는 센서 모듈 및 그 센서 모듈의 동작 방법 |
CN110869795B (zh) * | 2018-11-21 | 2023-11-10 | 深圳市大疆创新科技有限公司 | 一种微波雷达和无人飞行器 |
CN111521975B (zh) * | 2019-02-01 | 2022-09-09 | 华为技术有限公司 | 一种目标物探测方法及对应的探测装置 |
US11493623B2 (en) * | 2020-03-30 | 2022-11-08 | Xin Jin | Doppler group radar, group sonar and group sensor |
US11237246B1 (en) * | 2020-07-13 | 2022-02-01 | Dbtsystems Llc | Pulsed radar with multispectral modulation to reduce interference, increase PRF, and improve doppler velocity measurement |
EP3943966A1 (en) * | 2020-07-22 | 2022-01-26 | Infineon Technologies AG | Radar devices and methods for radar devices |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6217679A (ja) * | 1985-07-16 | 1987-01-26 | Nec Corp | レ−ダの送信装置 |
JPH10160828A (ja) * | 1996-12-03 | 1998-06-19 | Nec Corp | レーダ装置 |
JP2003121538A (ja) * | 2001-07-26 | 2003-04-23 | Codar Ocean Sensors Ltd | 時間多重変調において無線周波数を共有する方法 |
JP2004109046A (ja) * | 2002-09-20 | 2004-04-08 | Hitachi Ltd | 車載用電波レーダ装置及びその信号処理方法 |
JP2004511783A (ja) * | 2000-10-10 | 2004-04-15 | エス・エム・エス・スマート・マイクロウェーブ・センサーズ・ゲーエムベーハー | 離れたオブジェクトの距離及び相対速度を測定する方法及び装置 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB802373A (en) * | 1955-07-05 | 1958-10-01 | Marconi Wireless Telegraph Co | Improvements in or relating to pulse radar systems |
IT1146164B (it) * | 1980-07-16 | 1986-11-12 | Selenia Ind Elettroniche | Dispositivo di filtraggio doppler adattivo alla situazione di clutter ed ecm esterna per impianti radar |
GB2134741B (en) * | 1983-01-31 | 1987-07-01 | Decca Ltd | Radar apparatus |
FR2546630B1 (fr) * | 1983-05-26 | 1986-01-17 | Thomson Csf | Recepteur pour systeme radar doppler a impulsions |
IT1206287B (it) * | 1987-05-26 | 1989-04-14 | Selenia Ind Elettroniche | La detezione e il riconoscimento di radar con agilita' di frequenza da bersagli di traccia multipla impulso a impulso, utilizzato per |
JPH05180926A (ja) * | 1991-12-27 | 1993-07-23 | Mitsubishi Electric Corp | レーダ装置 |
JPH06138215A (ja) | 1992-10-26 | 1994-05-20 | Nec Corp | レーダー信号処理方式 |
US5345470A (en) * | 1993-03-31 | 1994-09-06 | Alexander Richard O | Methods of minimizing the interference between many multiple FMCW radars |
US5497162A (en) * | 1995-01-09 | 1996-03-05 | Northrop Grumman Corporation | Radar signal selection based upon antenna bearing |
JP3202520B2 (ja) * | 1995-02-10 | 2001-08-27 | 株式会社東芝 | 捜索レーダ装置 |
JPH11223673A (ja) | 1998-02-05 | 1999-08-17 | Matsushita Electric Ind Co Ltd | パルスドップラーレーダ装置 |
US6043770A (en) * | 1998-10-23 | 2000-03-28 | The United States Of America As Represented By The Secretary Of The Navy | Statistical inference of electromagnetic interference sources based on a priori knowledge of source and receiver parameters |
JP4111667B2 (ja) * | 2000-09-26 | 2008-07-02 | 富士通テン株式会社 | Fm−cwレーダ装置 |
JP2002139565A (ja) | 2000-11-02 | 2002-05-17 | Toshiba Corp | レーダ装置 |
US7304939B2 (en) * | 2001-12-03 | 2007-12-04 | Nortel Networks Limited | Communication using simultaneous orthogonal signals |
US7408907B2 (en) * | 2002-09-11 | 2008-08-05 | Cisco Technology, Inc. | System and method for management of a shared frequency band using client-specific management techniques |
US7292620B2 (en) * | 2002-12-31 | 2007-11-06 | Intel Corporation | Method and apparatus to generate a clock-based transmission |
US20050156780A1 (en) * | 2004-01-16 | 2005-07-21 | Ghz Tr Corporation | Methods and apparatus for automotive radar sensors |
-
2006
- 2006-10-06 WO PCT/JP2006/320110 patent/WO2007043475A1/ja active Application Filing
- 2006-10-06 JP JP2007539922A patent/JP5221142B2/ja not_active Expired - Fee Related
- 2006-10-06 EP EP06811437.0A patent/EP1933164B1/en not_active Ceased
- 2006-10-06 CN CN2006800310374A patent/CN101248367B/zh not_active Expired - Fee Related
-
2007
- 2007-03-15 US US11/724,228 patent/US20070229349A1/en not_active Abandoned
-
2008
- 2008-01-23 US US12/018,419 patent/US7864098B2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6217679A (ja) * | 1985-07-16 | 1987-01-26 | Nec Corp | レ−ダの送信装置 |
JPH10160828A (ja) * | 1996-12-03 | 1998-06-19 | Nec Corp | レーダ装置 |
JP2004511783A (ja) * | 2000-10-10 | 2004-04-15 | エス・エム・エス・スマート・マイクロウェーブ・センサーズ・ゲーエムベーハー | 離れたオブジェクトの距離及び相対速度を測定する方法及び装置 |
JP2003121538A (ja) * | 2001-07-26 | 2003-04-23 | Codar Ocean Sensors Ltd | 時間多重変調において無線周波数を共有する方法 |
JP2004109046A (ja) * | 2002-09-20 | 2004-04-08 | Hitachi Ltd | 車載用電波レーダ装置及びその信号処理方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1933164A4 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102819011A (zh) * | 2011-06-10 | 2012-12-12 | 古野电气株式会社 | 干涉信号去除装置、雷达装置、以及干涉信号去除方法 |
JP2012255755A (ja) * | 2011-06-10 | 2012-12-27 | Furuno Electric Co Ltd | 妨害信号除去装置、レーダ装置、及び妨害信号除去方法 |
Also Published As
Publication number | Publication date |
---|---|
EP1933164A4 (en) | 2010-03-10 |
EP1933164B1 (en) | 2016-07-13 |
EP1933164A1 (en) | 2008-06-18 |
JPWO2007043475A1 (ja) | 2009-04-16 |
US20070229349A1 (en) | 2007-10-04 |
US20080284638A1 (en) | 2008-11-20 |
CN101248367A (zh) | 2008-08-20 |
US7864098B2 (en) | 2011-01-04 |
JP5221142B2 (ja) | 2013-06-26 |
CN101248367B (zh) | 2013-04-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5221142B2 (ja) | レーダ装置とレーダサイト間調整方法 | |
CN109407088B (zh) | 用于检测并缓解相互干扰的雷达单元、集成电路和方法 | |
US10386458B2 (en) | Radar signal processing device and method | |
JP2015197438A (ja) | Fmcwレーダー及びパルスレーダーを組み合わせるハイブリッドレーダーシステム | |
JP2008527391A (ja) | レーダー装置 | |
WO2021144711A3 (en) | Method and system for intefrence management for digital radars | |
JP4762739B2 (ja) | 送受信装置 | |
JP3552206B2 (ja) | ドップラーレーダ装置 | |
CN210775831U (zh) | 雷达 | |
US10302742B2 (en) | Receiver architecture for increased robustness to radar interference | |
Mani et al. | Interference management in radar systems | |
JPH01207682A (ja) | レーダ装置 | |
JP5150113B2 (ja) | レーダ装置 | |
US5061933A (en) | Short-range radar system | |
JP2823001B2 (ja) | レーダ装置 | |
AU2021101590A4 (en) | Realtime signal generators for cellular jammer with dynamic switching of frequency bands | |
JP2001133541A (ja) | パルス圧縮レーダ装置 | |
KR102096043B1 (ko) | 고주파 신호의 송/수신 시간을 조절하는 방법 및 그 장치 | |
Cohen et al. | Spectrum analysis and measurements in a congested electromagnetic environment | |
JPH0472588A (ja) | パルスドチャープレーダ送信変調信号の形成方法およびパルスドチャープレーダ装置 | |
KR20020089734A (ko) | 재밍의 제어장치와 재밍 제어방법 | |
JPH0239752B2 (ja) | ||
RU1841296C (ru) | Устройство для создания помех системам наведения с непрерывным излучением | |
KR101040258B1 (ko) | 운동체의 유도 장치 및 방법 | |
JPH0712924A (ja) | 妨害波発生装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200680031037.4 Country of ref document: CN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 11724228 Country of ref document: US |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
REEP | Request for entry into the european phase |
Ref document number: 2006811437 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2006811437 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2007539922 Country of ref document: JP Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |