JP4544304B2 - レーダ - Google Patents
レーダ Download PDFInfo
- Publication number
- JP4544304B2 JP4544304B2 JP2007516230A JP2007516230A JP4544304B2 JP 4544304 B2 JP4544304 B2 JP 4544304B2 JP 2007516230 A JP2007516230 A JP 2007516230A JP 2007516230 A JP2007516230 A JP 2007516230A JP 4544304 B2 JP4544304 B2 JP 4544304B2
- Authority
- JP
- Japan
- Prior art keywords
- peaks
- electromagnetic wave
- signal
- interference
- target
- 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
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
- G01S7/023—Interference mitigation, e.g. reducing or avoiding non-intentional interference with other HF-transmitters, base station transmitters for mobile communication or other radar systems, e.g. using electro-magnetic interference [EMI] reduction techniques
-
- 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
- G01S7/40—Means for monitoring or calibrating
- G01S7/4004—Means for monitoring or calibrating of parts of a radar system
-
- 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
- G01S13/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
- G01S13/34—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
- G01S13/345—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal using triangular modulation
-
- 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
- G01S13/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
- G01S13/34—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
- G01S13/347—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal using more than one modulation frequency
-
- 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
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
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)
Description
図1はレーダの全体の構成を示すブロック図である。送信波変調部16は、DAコンバータ15に対して変調信号のディジタルデータを順次出力する。VCO1は、DAコンバータ15より出力される制御電圧に応じて発振周波数を変化させる。これにより、VCO1の発振周波数を三角波状に連続してFM変調させる。アイソレータ2は、VCO1からの発振信号をカプラ3側へ伝送し、VCO1へ反射信号が入射するのを阻止する。カプラ3は、アイソレータ2を経由した信号をサーキュレータ4側へ伝送するとともに、所定の分配比で送信信号の一部をローカル信号Loとしてミキサ6へ与える。サーキュレータ4は、送信信号をアンテナ5側へ伝送し、また、アンテナ5からの受信信号をミキサ6へ与える。アンテナ5は、VCO1のFM変調された連続波の送信信号を送信し、同方向からの反射信号を受信する。また、そのビームの方向を所定の探知角度範囲に亘って周期的に変化させ、ビームのスキャンを行う。
図6はその周波数分析に関する処理内容である。先ずADコンバータ8によって変換されたディジタルデータ列のうち処理対象の範囲をサンプリングし、窓関数を適用する(S1→S2)。続いてその所定数分のデータについてFFT演算を行う(S3)。その後、求まった各周波数ビンの実部と虚部の自乗和の平方根を求めてパワースペクトルを求める(S4)。
第2の実施形態に係るレーダの全体の構成をブロック図で表せば図1に示したものと同様であるので、この第2の実施形態でも図1を参照する。
先ず周波数スペクトル(前記パワースペクトル)から、定常しきい値として設定したノイズしきい値を超えるピークを検出する(S31→S32)。そして、この検出したピークの数が定常最大数として定めた数を超えているか否かを判定する(S33)。
ADC−ADコンバータ
DAC−DAコンバータ
VCO−電圧制御発振器
Claims (2)
- 変調区間で時間経過にともない周波数が次第に変化する電磁波の送信を行うとともに、該電磁波の物標からの反射波を受信する電磁波送受信手段と、送信信号と受信信号とのビート信号の周波数スペクトルを求める手段と、前記周波数スペクトルを構成するデータのうちノイズしきい値を超えるピークに基づいて前記物標の情報を検出する手段とを備えたレーダにおいて、
前記ノイズしきい値を超えるピークの数の基準数を定める手段と、
前記ノイズしきい値を超えるピークの数が前記基準数より所定数または所定比率を超えるか否かに応じて、前記ビート信号の干渉の有無を検知する手段と、
前記干渉の有無に応じて前記ビート信号に対する処理を行う信号処理手段と、
を備え、
前記電磁波送受信手段は、前記電磁波のビームの方位方向への走査を繰り返すとともに、前記基準数は、今回の走査とは異なった過去の走査での同方位へのビームについて求めた前記しきい値を超えるピークの数を基にして定めたものであるレーダ。 - 変調区間で時間経過にともない周波数が次第に変化する電磁波の送信を行うとともに、該電磁波の物標からの反射波を受信する電磁波送受信手段と、送信信号と受信信号とのビート信号の周波数スペクトルを求める手段と、前記周波数スペクトルを構成するデータのうちノイズしきい値を超えるピークに基づいて前記物標の情報を検出する手段とを備えたレーダにおいて、
前記ノイズしきい値を超えるピークの数の基準数を定める手段と、
前記ノイズしきい値を超えるピークの数が前記基準数より所定数または所定比率を超えるか否かに応じて、前記ビート信号の干渉の有無を検知する手段と、
前記干渉の有無に応じて前記ビート信号に対する処理を行う信号処理手段と、
を備え、
前記電磁波送受信手段は、前記電磁波のビームの方位方向への走査を繰り返すとともに、前記基準数は、着目ビームに近接するビームについて求めた前記しきい値を超えるピークの数を基にして定めたものであるレーダ。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005143173 | 2005-05-16 | ||
JP2005143173 | 2005-05-16 | ||
PCT/JP2006/308201 WO2006123500A1 (ja) | 2005-05-16 | 2006-04-19 | レーダ |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2006123500A1 JPWO2006123500A1 (ja) | 2008-12-25 |
JP4544304B2 true JP4544304B2 (ja) | 2010-09-15 |
Family
ID=37431079
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007516230A Expired - Fee Related JP4544304B2 (ja) | 2005-05-16 | 2006-04-19 | レーダ |
Country Status (4)
Country | Link |
---|---|
US (1) | US8125375B2 (ja) |
JP (1) | JP4544304B2 (ja) |
DE (1) | DE112006001113T5 (ja) |
WO (1) | WO2006123500A1 (ja) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4351266B2 (ja) * | 2007-05-10 | 2009-10-28 | 三菱電機株式会社 | 周波数変調レーダ装置 |
US8026843B2 (en) * | 2008-01-31 | 2011-09-27 | Infineon Technologies Ag | Radar methods and systems using ramp sequences |
JP2010014488A (ja) * | 2008-07-02 | 2010-01-21 | Fujitsu Ltd | Fmcwレーダ装置用信号処理装置、fmcwレーダ装置用信号処理方法、fmcwレーダ装置 |
JP5102165B2 (ja) * | 2008-09-22 | 2012-12-19 | 株式会社デンソー | レーダ装置 |
KR101137038B1 (ko) * | 2010-01-05 | 2012-04-19 | 주식회사 만도 | 레이더 장치, 안테나 장치 및 데이터 획득 방법 |
JP5524803B2 (ja) * | 2010-10-21 | 2014-06-18 | 三菱電機株式会社 | 車載用レーダ装置、および車載用レーダ装置用の電波干渉検知方法 |
KR101199202B1 (ko) * | 2011-01-04 | 2012-11-07 | 주식회사 만도 | 타깃 물체 감지 방법 및 레이더 장치 |
JP5382087B2 (ja) * | 2011-11-02 | 2014-01-08 | 株式会社デンソー | レーダ装置 |
DE102012021212A1 (de) * | 2012-10-27 | 2014-04-30 | Valeo Schalter Und Sensoren Gmbh | Verfahren zur Detektion einer Interferenz in einem Empfangssignal eines Radarsensors, Fahrerassistenzeinrichtung und Kraftfahrzeug |
WO2018180584A1 (ja) * | 2017-03-30 | 2018-10-04 | 日立オートモティブシステムズ株式会社 | レーダ装置 |
JP7014041B2 (ja) * | 2018-05-11 | 2022-02-01 | 株式会社デンソー | レーダ装置 |
JP6992704B2 (ja) * | 2018-08-22 | 2022-01-13 | 株式会社デンソー | 物体検知装置 |
JP7363678B2 (ja) * | 2020-06-23 | 2023-10-18 | 株式会社デンソー | レーダ装置 |
JP2022082143A (ja) * | 2020-11-20 | 2022-06-01 | 株式会社Soken | 信号処理装置 |
US20210325508A1 (en) * | 2021-06-24 | 2021-10-21 | Intel Corporation | Signal-to-Noise Ratio Range Consistency Check for Radar Ghost Target Detection |
EP4155756A1 (en) * | 2021-09-27 | 2023-03-29 | Infineon Technologies AG | Fmcw radar |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04204189A (ja) * | 1990-11-30 | 1992-07-24 | Mitsubishi Electric Corp | 標的距離測定方法及びその装置 |
JP2004286537A (ja) * | 2003-03-20 | 2004-10-14 | Mitsubishi Electric Corp | 車載用レーダ装置 |
JP2004333234A (ja) * | 2003-05-02 | 2004-11-25 | Fujitsu Ltd | レーダの信号処理装置および処理方法 |
Family Cites Families (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3906493A (en) * | 1959-03-27 | 1975-09-16 | Us Navy | Autocorrelation type spectral comparison fuze system |
US4003053A (en) * | 1966-12-16 | 1977-01-11 | The United States Of America As Represented By The Secretary Of The Navy | Target adaptive radar system |
US3623097A (en) * | 1969-07-17 | 1971-11-23 | Us Army | Modulation correlated fm ranging system |
GB1348782A (en) * | 1970-03-20 | 1974-03-20 | Microwave & Electronic Syst | Target detection by doppler shift |
US3701154A (en) * | 1971-03-09 | 1972-10-24 | Us Navy | Matched filter |
US4118701A (en) * | 1976-10-08 | 1978-10-03 | Nasa | FM/CW radar system |
US4115774A (en) * | 1977-08-17 | 1978-09-19 | The Bendix Corporation | CW radar AM-noise video-cancellation system |
US4236157A (en) * | 1978-12-22 | 1980-11-25 | The United States Of America As Represented By The Secretary Of The Navy | Target detection device |
US4348675A (en) * | 1979-05-23 | 1982-09-07 | Honda Giken Kogyo Kabushiki Kaisha | FM-CW Radar system for use in an automotive vehicle |
US5276450A (en) * | 1981-03-23 | 1994-01-04 | Systems Research Laboratories, Inc. | Phase coherent heterodyne anti-jam method and apparatus |
US4635058A (en) * | 1983-12-14 | 1987-01-06 | Rca Corporation | Vehicle identification system using radar and acoustic information |
US4660042A (en) * | 1984-02-24 | 1987-04-21 | Litton Systems, Inc. | Cancellation system for transmitter interference with nearby receiver |
US5021791A (en) * | 1984-11-02 | 1991-06-04 | Gec-Marconi Limited | Radar systems |
US5347283A (en) * | 1989-06-14 | 1994-09-13 | Hughes Aircraft Company | Frequency agile radar |
JP2657020B2 (ja) * | 1992-03-17 | 1997-09-24 | 富士通株式会社 | Fm−cwレーダ装置 |
US5345470A (en) * | 1993-03-31 | 1994-09-06 | Alexander Richard O | Methods of minimizing the interference between many multiple FMCW radars |
WO1998016848A1 (en) * | 1996-10-17 | 1998-04-23 | Celsiustech Electronics Ab | Procedure for the elimination of interference in a radar unit of the fmcw type |
JP2001242241A (ja) * | 2000-02-28 | 2001-09-07 | Aisin Seiki Co Ltd | レーダ装置及び車載用レーダ装置 |
JP4390359B2 (ja) * | 2000-04-28 | 2009-12-24 | 富士通株式会社 | Fm−cwレーダ装置 |
JP2002168947A (ja) | 2000-11-30 | 2002-06-14 | Matsushita Electric Works Ltd | Fm−cwレーダ装置 |
JP2003172776A (ja) * | 2001-12-10 | 2003-06-20 | Fujitsu Ten Ltd | レーダ装置 |
JP4007498B2 (ja) * | 2002-11-15 | 2007-11-14 | 三菱電機株式会社 | 車載用レーダ装置 |
JP4093109B2 (ja) | 2003-05-15 | 2008-06-04 | 株式会社デンソー | 車両用レーダ装置 |
US7683827B2 (en) * | 2004-12-15 | 2010-03-23 | Valeo Radar Systems, Inc. | System and method for reducing the effect of a radar interference signal |
US7403153B2 (en) * | 2004-12-15 | 2008-07-22 | Valeo Raytheon Systems, Inc. | System and method for reducing a radar interference signal |
JP4462060B2 (ja) * | 2005-02-14 | 2010-05-12 | 株式会社デンソー | Fmcwレーダ装置 |
JP4747652B2 (ja) * | 2005-04-15 | 2011-08-17 | 株式会社デンソー | Fmcwレーダ |
JP4544305B2 (ja) * | 2005-05-13 | 2010-09-15 | 株式会社村田製作所 | レーダ |
WO2006123499A1 (ja) * | 2005-05-16 | 2006-11-23 | Murata Manufacturing Co., Ltd. | レーダ |
JP4260831B2 (ja) * | 2006-09-20 | 2009-04-30 | 三菱電機株式会社 | 車載用周波数変調レーダ装置 |
JP4351266B2 (ja) * | 2007-05-10 | 2009-10-28 | 三菱電機株式会社 | 周波数変調レーダ装置 |
US7612707B2 (en) * | 2007-09-28 | 2009-11-03 | Banner Engineering Corporation | Configurable radar sensor |
-
2006
- 2006-04-19 JP JP2007516230A patent/JP4544304B2/ja not_active Expired - Fee Related
- 2006-04-19 WO PCT/JP2006/308201 patent/WO2006123500A1/ja active Application Filing
- 2006-04-19 DE DE112006001113T patent/DE112006001113T5/de not_active Withdrawn
-
2007
- 2007-11-02 US US11/934,382 patent/US8125375B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04204189A (ja) * | 1990-11-30 | 1992-07-24 | Mitsubishi Electric Corp | 標的距離測定方法及びその装置 |
JP2004286537A (ja) * | 2003-03-20 | 2004-10-14 | Mitsubishi Electric Corp | 車載用レーダ装置 |
JP2004333234A (ja) * | 2003-05-02 | 2004-11-25 | Fujitsu Ltd | レーダの信号処理装置および処理方法 |
Also Published As
Publication number | Publication date |
---|---|
DE112006001113T5 (de) | 2008-04-30 |
JPWO2006123500A1 (ja) | 2008-12-25 |
US8125375B2 (en) | 2012-02-28 |
US20110050484A1 (en) | 2011-03-03 |
WO2006123500A1 (ja) | 2006-11-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4544304B2 (ja) | レーダ | |
JP4544305B2 (ja) | レーダ | |
JPWO2006123499A1 (ja) | レーダ | |
JP4544306B2 (ja) | レーダ | |
US7187321B2 (en) | Interference determination method and FMCW radar using the same | |
JP4120679B2 (ja) | レーダ | |
US7221309B2 (en) | FM-CW radar system | |
US6674393B2 (en) | FM-CW radar processing device | |
US6856278B2 (en) | Radar | |
US7202810B2 (en) | Radar apparatus and radar signal processing method | |
US8760341B2 (en) | Radar device | |
JP3991793B2 (ja) | レーダ | |
JP3518725B2 (ja) | レーダ装置および物体探知方法 | |
JP2009058335A (ja) | レーダ装置、及び、相対距離検出方法 | |
JP2020159980A (ja) | レーダ装置及び物標検出方法 | |
JP3709826B2 (ja) | レーダ | |
JP2005106576A (ja) | 測距センサ | |
JPH0122910B2 (ja) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20091027 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20091218 |
|
RD02 | Notification of acceptance of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7422 Effective date: 20091218 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20100608 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20100621 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130709 Year of fee payment: 3 |
|
R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
LAPS | Cancellation because of no payment of annual fees |