ES2144048T3 - Procedimiento de radar controlado por ordenador para medir distancias y velocidades relativas entre un vehiculo y obstaculos que se encuentren delante del mismo. - Google Patents

Procedimiento de radar controlado por ordenador para medir distancias y velocidades relativas entre un vehiculo y obstaculos que se encuentren delante del mismo.

Info

Publication number
ES2144048T3
ES2144048T3 ES94904608T ES94904608T ES2144048T3 ES 2144048 T3 ES2144048 T3 ES 2144048T3 ES 94904608 T ES94904608 T ES 94904608T ES 94904608 T ES94904608 T ES 94904608T ES 2144048 T3 ES2144048 T3 ES 2144048T3
Authority
ES
Spain
Prior art keywords
obstacles
vehicle
relative speeds
synchronism signal
linear
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 - Lifetime
Application number
ES94904608T
Other languages
English (en)
Inventor
Ernst Lissel
Hermann Rohling
Wilfried Plagge
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Boeing North American Inc
Original Assignee
Rockwell International Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rockwell International Corp filed Critical Rockwell International Corp
Application granted granted Critical
Publication of ES2144048T3 publication Critical patent/ES2144048T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • 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
    • G01S13/26—Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein the transmitted pulses use a frequency- or phase-modulated carrier wave
    • G01S13/28—Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein the transmitted pulses use a frequency- or phase-modulated carrier wave with time compression of received pulses
    • G01S13/284—Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein the transmitted pulses use a frequency- or phase-modulated carrier wave with time compression of received pulses using coded pulses
    • G01S13/286—Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein the transmitted pulses use a frequency- or phase-modulated carrier wave with time compression of received pulses using coded pulses frequency shift keyed
    • 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
    • G01S13/50—Systems of measurement based on relative movement of target
    • G01S13/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
    • G01S13/583—Velocity or trajectory determination systems; Sense-of-movement determination systems using transmission of continuous unmodulated waves, amplitude-, frequency-, or phase-modulated waves and based upon the Doppler effect resulting from movement of targets
    • G01S13/584—Velocity or trajectory determination systems; Sense-of-movement determination systems using transmission of continuous unmodulated waves, amplitude-, frequency-, or phase-modulated waves and based upon the Doppler effect resulting from movement of targets adapted for simultaneous range and velocity measurements
    • 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
    • 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
    • G01S7/03—Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
    • G01S7/038—Feedthrough nulling circuits
    • 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
    • G01S13/346—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 noise 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
    • G01S13/66—Radar-tracking systems; Analogous systems
    • G01S13/72—Radar-tracking systems; Analogous systems for two-dimensional [2D] tracking, e.g. combination of angle and range tracking, track-while-scan radar
    • G01S13/723—Radar-tracking systems; Analogous systems for two-dimensional [2D] tracking, e.g. combination of angle and range tracking, track-while-scan radar by using numerical data
    • G01S13/726—Multiple target tracking
    • 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
    • G01S7/28—Details of pulse systems
    • G01S7/285—Receivers
    • G01S7/288—Coherent receivers
    • G01S7/2886—Coherent receivers using I/Q processing

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

LA INVENCION SE REFIERE A UN PROCESO DE RADAR COMPUTERIZADO PARA MEDIR DISTANCIAS Y VELOCIDADES RELATIVAS ENTRE UN VEHICULO Y VARIOS OBSTACULOS EN FRENTE DE EL, EN DONDE SE REALIZA UNA DISTINCION FIABLE ENTRE OBSTACULOS ACTUALES Y APARENTES CON UN TIEMPO DE EVALUACION BREVE EN CUATRO ETAPAS (A, B, C, D). LA CARACTERISTICA ESENCIAL DE LAS PRIMERAS TRES ETAPAS (A, B, C) ES LA TRANSMISION DE SEÑAL DE SINCRONISMO (20) DE FRECUENCIA CONSTANTE QUE FORMA UNA ELEVACION LINEAL, UNA CAIDA LINEAL Y UNA SECUENCIA LINEAL DE FRECUENCIA CONSTANTE SOBRE UNA GRAFICA TIEMPO-FRECUENCIA. AL TERMINO DE CADA SEÑAL DE SINCRONISMO REFLEJADA, POR EJEMPLO CON FASE CONSTANTE, SE DETERMINA UN VALOR DE EXPLORACION COMPLEJA. SE DETERMINAN TAMBIEN LOS OBSTACULOS POTENCIALES SOBRE UN GRAFICO VELOCIDAD-DISTANCIA RELATIVO COMO LOS PUNTOS DE INTERSECCION DE LINEAS RECTAS OBTENIDAS A PARTIR DE LAS SECUENCIAS DE SEÑAL DE SINCRONISMO LINEALES REFLEJADAS. SE UTILIZA UNA CORRELACION ESPECIAL EN EL ORDENADOR PARA EXTRACTAR LOS OBSTACULOS FANTASMAS Y PARA EL PROCESADO SOLAMENTE DE LOS VALORES RECIBIDOS PARA LOS OBSTACULOS REMANENTES.
ES94904608T 1992-12-31 1993-12-29 Procedimiento de radar controlado por ordenador para medir distancias y velocidades relativas entre un vehiculo y obstaculos que se encuentren delante del mismo. Expired - Lifetime ES2144048T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4244608A DE4244608C2 (de) 1992-12-31 1992-12-31 Mittels eines Computers durchgeführtes Radarverfahren zur Messung von Abständen und Relativgeschwindigkeiten zwischen einem Fahrzeug und vor ihm befindlichen Hindernissen

Publications (1)

Publication Number Publication Date
ES2144048T3 true ES2144048T3 (es) 2000-06-01

Family

ID=6476870

Family Applications (1)

Application Number Title Priority Date Filing Date
ES94904608T Expired - Lifetime ES2144048T3 (es) 1992-12-31 1993-12-29 Procedimiento de radar controlado por ordenador para medir distancias y velocidades relativas entre un vehiculo y obstaculos que se encuentren delante del mismo.

Country Status (6)

Country Link
US (1) US5768131A (es)
EP (2) EP0939322A3 (es)
JP (1) JP3220463B2 (es)
DE (1) DE4244608C2 (es)
ES (1) ES2144048T3 (es)
WO (1) WO1994016340A1 (es)

Families Citing this family (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996014590A1 (de) * 1994-11-08 1996-05-17 Tagix Ag Verfahren zum erzeugen einer frequenzrampe für eine laufzeitmessung von rf-signalen
DE19538309C2 (de) * 1995-10-14 1998-10-15 Volkswagen Ag Radarverfahren zur Messung von Abständen und Relativgeschwindigkeiten zwischen einem Fahrzeug und einem oder mehreren Hindernissen
FR2756932B1 (fr) * 1996-12-09 1999-02-26 Fritz Joel Henri Louis Procede pour applications anticollision et asservissement de la vitesse de vehicules faisant appel a un radar pulse-doppler
US5923280A (en) * 1997-01-17 1999-07-13 Automotive Systems Laboratory, Inc. Vehicle collision radar with randomized FSK wave form
US5995900A (en) * 1997-01-24 1999-11-30 Grumman Corporation Infrared traffic sensor with feature curve generation
DE19754720C2 (de) * 1997-12-10 2000-12-07 Adc Automotive Dist Control Verfahren zum Betrieb eines Radarsystems
DE19851307B4 (de) * 1998-10-08 2007-12-27 Zoller & Fröhlich GmbH System und Verfahren zum Ermitteln mindestens einer physikalischen Größe
JP4045043B2 (ja) * 1999-02-24 2008-02-13 本田技研工業株式会社 レーダ装置
DE19922411A1 (de) 1999-04-07 2000-10-12 Volkswagen Ag Radarverfahren zur Messung von Abständen und Relativgeschwindigkeiten zwischen einem Fahrzeug und einem oder mehreren Hindernissen
DE19919644C2 (de) * 1999-04-30 2002-05-08 Daimler Chrysler Ag Meß- und Steuerungssystem zur Querregelung aufeinanderfolgender Fahrzeuge und Verfahren hierzu
DE19922730A1 (de) 1999-05-18 2000-11-23 Mannesmann Vdo Ag Automatisches Notrufsystem für Kraftfahrzeuge
US6426718B1 (en) 2000-03-14 2002-07-30 The Boeing Company Subaperture processing for clutter reduction in synthetic aperture radar images of ground moving targets
DE10026032A1 (de) * 2000-05-25 2001-11-29 Bayerische Motoren Werke Ag Vorrichtung und Verfahren zur Abstands- und Geschwindigkeitsbestimmung
DE10050278B4 (de) * 2000-10-10 2005-06-02 S.M.S., Smart Microwave Sensors Gmbh Verfahren und Vorrichtung zur Bestimmung von Abstand und Relativgeschwindigkeit eines entfernten Objektes
US6806826B2 (en) * 2002-01-17 2004-10-19 The Ohio State University Vehicle obstacle warning radar
US7295154B2 (en) * 2002-01-17 2007-11-13 The Ohio State University Vehicle obstacle warning radar
US6860081B2 (en) * 2002-12-04 2005-03-01 The Ohio State University Sidelobe controlled radio transmission region in metallic panel
GB0228731D0 (en) * 2002-12-10 2003-01-15 Trw Ltd Frequency shift keying radar with ambiguity detection
US7196657B2 (en) * 2003-01-31 2007-03-27 The Ohio State University Radar system using RF noise
EP1519204B1 (de) * 2003-09-29 2010-03-24 Volkswagen Aktiengesellschaft Multistatischer Radar für ein Kraftfahrzeug
DE10347976A1 (de) * 2003-10-15 2005-05-19 Volkswagen Ag Messgerät und Messverfahren für ein Kraftfahrzeug
DE10349919A1 (de) 2003-10-25 2005-05-25 Volkswagen Ag Messgerät für ein Kraftfahrzeug
DE10355249B4 (de) 2003-11-26 2021-09-23 Volkswagen Ag Fahrassistenzsystem für ein Kraftfahrzeug
DE102004006015A1 (de) * 2004-02-06 2005-08-25 Robert Bosch Gmbh Verfahren und Vorrichtung zur Anpassung eines Schwellwertes einer Detektionseinrichtung
BRPI0418602A (pt) 2004-03-25 2007-05-02 Bell Helicopter Textron Inc sistema de controle para veìculos
DE102004019651A1 (de) * 2004-04-22 2005-11-17 Siemens Ag Blindspot-Sensorsystem
DE102004024706B4 (de) 2004-05-19 2021-07-22 Robert Bosch Gmbh Radarsensor für Kraftfahrzeuge
DE102004030133A1 (de) * 2004-06-22 2006-01-19 Robert Bosch Gmbh Radarsensor und Verfahren zur Auswertung von Objekten
DE102004047087A1 (de) 2004-09-29 2006-03-30 Robert Bosch Gmbh Verfahren zur Objektverifaktion in Radarsystemen für Kraftfahrzeuge
DE102004047086A1 (de) * 2004-09-29 2006-03-30 Robert Bosch Gmbh Radarsensor für Kraftfahrzeuge
FR2897162B1 (fr) * 2006-02-09 2008-11-21 Schneider Electric Ind Sas Methode de detection hyperfrequence et detecteur utilisant cette methode
DE102006028465A1 (de) * 2006-06-21 2007-12-27 Valeo Schalter Und Sensoren Gmbh Kraftfahrzeug-Radarsystem und Verfahren zur Bestimmung von Geschwindigkeiten und Entfernungen von Objekten relativ zu dem einen Radarsystem
DE102008034997A1 (de) 2007-07-28 2009-02-26 Volkswagen Ag Verfahren zum Bestimmen der Azimutwinkel von Objekten in Bezug auf ein Messgerät
DE102007042954A1 (de) 2007-08-30 2009-03-05 Balluff Gmbh Mikrowellen-Näherungssensor und Verfahren zur Ermittlung des Abstands zwischen einem Messkopf und einem Zielobjekt
DE102007043535A1 (de) * 2007-09-12 2009-03-19 Robert Bosch Gmbh FMCW-Radarortungsvorrichtung und entsprechendes FMCW-Radarortungsverfahren
DE102007057701A1 (de) * 2007-11-30 2009-06-04 Robert Bosch Gmbh Verfahren zum Betreiben eines Messgerätes sowie Messgerät
GB2462148A (en) * 2008-07-31 2010-02-03 Mitsubishi Electric Inf Tech Automotive FMCW radar with multiple frequency chirps
EP2189809A1 (en) 2008-11-24 2010-05-26 Mitsubishi Electric R&D Centre Europe B.V. Object ranging
US7791528B2 (en) * 2008-11-24 2010-09-07 Autoliv Asp, Inc. Method and apparatus for radar signal processing
US20110102234A1 (en) 2009-11-03 2011-05-05 Vawd Applied Science And Technology Corporation Standoff range sense through obstruction radar system
WO2011102762A1 (en) * 2010-02-17 2011-08-25 Saab Ab Wideband transmitter/receiver arrangement for multifunctional radar and communication
EP2439552A1 (en) * 2010-10-06 2012-04-11 Astrium Limited Signal processing in a radar system to cancel Tx-Rx-leakage
JP5271992B2 (ja) * 2010-11-15 2013-08-21 日本電信電話株式会社 イメージング装置及びイメージング方法
DE102012008350A1 (de) 2012-04-19 2013-10-24 S.M.S Smart Microwave Sensors Gmbh Verfahren und Vorrichtung zur Abstimmung von Abstand und Radialgeschwindigkeit eines Objekts mittels Radarsignalen
US9425516B2 (en) 2012-07-06 2016-08-23 The Ohio State University Compact dual band GNSS antenna design
JP6303964B2 (ja) * 2014-10-03 2018-04-04 株式会社デンソー レーダ装置
US9994152B1 (en) * 2015-08-07 2018-06-12 Ryan Hess Active scanning collision avoidance system
US10151826B2 (en) * 2016-02-16 2018-12-11 Infineon Technologies Ag Radar employing preacquisition ramps
US11372096B2 (en) * 2017-03-20 2022-06-28 David Slemp Frequency modulated continuous wave antenna system
US10473775B2 (en) * 2017-03-20 2019-11-12 David Slemp Frequency modulated continuous wave antenna system

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2171961B1 (es) * 1972-02-17 1979-04-27 Labo Cent Telecommunicat
FR2220797B1 (es) * 1973-03-06 1977-09-02 Thomson Csf
GB1495387A (en) * 1973-12-22 1977-12-14 Lucas Ltd Joseph Road vehicle radar system
SE418018B (sv) * 1979-04-25 1981-04-27 Ericsson Telefon Ab L M Forfarande att i en foljeradar astadkomma stort entydighetsavstand for detekterade mal medelst radarpulser med hog repetitionsfrekvens
US4450444A (en) * 1981-05-29 1984-05-22 The United States Of America As Represented By The Secretary Of The Navy Stepped frequency radar target imaging
FR2523315A1 (fr) * 1982-03-12 1983-09-16 Thomson Csf Procede de lever d'ambiguite de mesure de distance et radar utilisant ce procede
US4618864A (en) * 1984-01-31 1986-10-21 Westinghouse Electric Corp. Radar channel including an orthogonal MTI filter pair
GB2226204A (en) * 1988-12-07 1990-06-20 Philips Electronic Associated Continuously transmitting and receiving radar
US5134411A (en) * 1990-07-13 1992-07-28 General Microwave Corporation Near range obstacle detection and ranging aid
GB2248359A (en) * 1990-09-26 1992-04-01 Philips Electronic Associated Resolving range/Doppler coupling in a swept-frequency radar
GB2249448B (en) * 1990-10-30 1995-01-25 Roke Manor Research Improvements in or relating to radar systems
US5105195A (en) * 1990-12-10 1992-04-14 Hughes Aircraft Company System and method for compensation of in-phase and quadrature phase and gain imbalance
DE4040572A1 (de) 1990-12-19 1992-06-25 Bosch Gmbh Robert Verfahren zur messung des abstandes und der geschwindigkeit eines objekts
IL101077A (en) * 1991-03-18 1995-08-31 Hydroacoustic Inc A system for measuring distances using echoes

Also Published As

Publication number Publication date
EP0939322A3 (de) 1999-10-06
WO1994016340A1 (de) 1994-07-21
DE4244608A1 (de) 1994-07-07
JP3220463B2 (ja) 2001-10-22
EP0939322A2 (de) 1999-09-01
US5768131A (en) 1998-06-16
EP0677172A1 (de) 1995-10-18
EP0677172B1 (de) 2000-03-01
DE4244608C2 (de) 1997-03-06
JPH08509059A (ja) 1996-09-24

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