EP1423729A2 - Ensemble radar pulse - Google Patents

Ensemble radar pulse

Info

Publication number
EP1423729A2
EP1423729A2 EP02754257A EP02754257A EP1423729A2 EP 1423729 A2 EP1423729 A2 EP 1423729A2 EP 02754257 A EP02754257 A EP 02754257A EP 02754257 A EP02754257 A EP 02754257A EP 1423729 A2 EP1423729 A2 EP 1423729A2
Authority
EP
European Patent Office
Prior art keywords
pulse
receiving
signal
arrangement according
reception
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.)
Withdrawn
Application number
EP02754257A
Other languages
German (de)
English (en)
Inventor
Frank Gottwald
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1423729A2 publication Critical patent/EP1423729A2/fr
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • G01S13/003—Bistatic radar systems; Multistatic radar systems
    • 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
    • G01S13/18—Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein range gates are used
    • 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
    • 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
    • G01S7/28—Details of pulse systems
    • G01S7/285—Receivers
    • G01S7/288—Coherent receivers
    • G01S7/2886—Coherent receivers using I/Q processing

Definitions

  • the invention is based on a pulse radar arrangement, in particular for short-range pulse radar applications in motor vehicles.
  • High-frequency source for controlling the mixer on the receiving side only has to be provided once.
  • the operating mode can be changed flexibly:
  • Figure 4 is a block diagram of a pulse radar arrangement according to the invention with several receive trains.
  • the delay circuit 211 is required. After a defined time after the generation of the transmission pulse, which corresponds to the pulse transit time for the desired distance cell, a very short scanning pulse is applied to a broadband scanner 413 or 414 and samples the output signal of the IF amplifier 411 or 412 in the selected distance cell , The length of the scanning pulse is of the order of the transmit pulse and IF pulse width. This happens in the rate of generation of the transmission pulses, only delayed accordingly.
  • the variation of the delay time allows the scanning of the desired distance range identical to the SRR (Short Range Radar).
  • the scanner detects voltages different from 0 and thus recognizes the pulse return after the desired runtime.
  • Non-coherent pulse integration is possible which improves the signal-to-noise ratio in proportion to SQRT (n), where n is the number of integrated pulses.
  • FIG. 4 shows an exemplary embodiment with several receiving trains, here specifically two.
  • the individual receiving trains can be designed as in FIG. 2 or 3.
  • the receiving trains shown in FIG. 4 differ from FIGS. 2 and 3 as follows:
  • each mixer 4, 5 and 41, 51 has a separate pulse modulator 71, 72 or 711, 721, which is independent of the respective.
  • other mixer of the same receiving train can be controlled via a corresponding pulse signal source 11, 12 or 111, 121, delay circuit 21, 22 or 211, 221 and receiving gate 212, 213 or 214, 215.
  • the individual receive trains can either have a common receive antenna 61 or each have separate receive antennas 61, 62, 63.
  • further downstream signal dividers 81, 82 are required ,
  • a superposition of two orthogonal codes can be provided in the transmission train and only one of the transmitted orthogonal signals can be evaluated for each reception train.

Landscapes

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

Abstract

L'invention concerne un ensemble radar pulsé qui comporte une source haute fréquence (1) délivrant un signal continu haute fréquence, laquelle est reliée, d'une part, à un modulateur d'impulsions (3) situé côté émission et, d'autre part, à au moins un mélangeur (4, 5) situé dans au moins un trajet de réception. Un modulateur d'impulsions est monté en amont du mélangeur (4, 5), par rapport à son raccordement à une antenne de réception (6). Le mélangeur (4, 5) évalue une impulsion radar réfléchie par un objet avec le signal de la source haute fréquence (1). Cet ensemble ne nécessite aucun commutateur d'oscillateur local et n'est pas sensible aux interférences.
EP02754257A 2001-08-29 2002-06-21 Ensemble radar pulse Withdrawn EP1423729A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10142172A DE10142172A1 (de) 2001-08-29 2001-08-29 Pulsradaranordnung
DE10142172 2001-08-29
PCT/DE2002/002295 WO2003027707A2 (fr) 2001-08-29 2002-06-21 Ensemble radar pulse

Publications (1)

Publication Number Publication Date
EP1423729A2 true EP1423729A2 (fr) 2004-06-02

Family

ID=7696892

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02754257A Withdrawn EP1423729A2 (fr) 2001-08-29 2002-06-21 Ensemble radar pulse

Country Status (5)

Country Link
US (1) US6956522B2 (fr)
EP (1) EP1423729A2 (fr)
JP (1) JP4264352B2 (fr)
DE (1) DE10142172A1 (fr)
WO (1) WO2003027707A2 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7295154B2 (en) 2002-01-17 2007-11-13 The Ohio State University Vehicle obstacle warning radar
US6806826B2 (en) * 2002-01-17 2004-10-19 The Ohio State University Vehicle obstacle warning radar
US7196657B2 (en) 2003-01-31 2007-03-27 The Ohio State University Radar system using RF noise
DE102004054761B4 (de) * 2004-11-12 2009-04-09 Rohde & Schwarz Gmbh & Co. Kg PIN-Dioden-Pulsmodulator
US7649754B1 (en) * 2007-10-01 2010-01-19 Wittenbreder Jr Ernest Henry Self limiting zero voltage switching power conversion networks
JP4976439B2 (ja) * 2009-03-17 2012-07-18 古河電気工業株式会社 レーダ装置
DE102011055674A1 (de) * 2011-11-24 2013-05-29 Hella Kgaa Hueck & Co. Verfahren zur Bestimmung wenigstens eines Parameters zur Korrelation zweier Objekte
WO2014008508A1 (fr) 2012-07-06 2014-01-09 The Ohio State University Conception d'antenne gnss à double bande compacte
JP6220858B2 (ja) * 2013-03-21 2017-10-25 パナソニック株式会社 レーダ装置
EP2916141B1 (fr) * 2014-03-06 2024-07-10 Acconeer AB Système d'émetteur-récepteur
CN107533132B (zh) * 2015-03-06 2020-12-01 巴鲁夫公司 用于测量距目标的距离的接近传感器和方法
US20200186678A1 (en) * 2017-06-15 2020-06-11 Hewlett-Packard Development Company, L.P. Color management resource

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2548779A (en) * 1945-10-19 1951-04-10 Alfred G Emslie Moving target indication radar system
US3161874A (en) * 1951-05-01 1964-12-15 Irving H Page Fixed pulse rejection system for radar moving target indicator
US4096478A (en) * 1971-07-06 1978-06-20 International Telephone And Telegraph Corporation Intra-pulse MTI system with range ambiguity suppression
JPS5876784A (ja) * 1981-10-31 1983-05-09 Nissan Motor Co Ltd 車両用光パルスレ−ダ装置
US5268692A (en) * 1991-03-14 1993-12-07 Grosch Theodore O Safe stopping distance detector, antenna and method
US5539410A (en) * 1992-03-02 1996-07-23 Motorola, Inc. Pulse doppler proximity sensor
US5731781A (en) * 1996-05-20 1998-03-24 Delco Electronics Corp. Continuous wave wideband precision ranging radar
US6067040A (en) * 1997-05-30 2000-05-23 The Whitaker Corporation Low cost-high resolution radar for commercial and industrial applications
DE19926787C2 (de) 1999-06-11 2002-06-27 S M S Entfernungsmeßeinrichtung und Verfahren zum Kalibrieren einer Entfernungsmeßeinrichtung
DE10104022A1 (de) * 2001-01-31 2002-08-01 Bosch Gmbh Robert Radareinrichtung und Verfahren zum Codieren einer Radareinrichtung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03027707A2 *

Also Published As

Publication number Publication date
WO2003027707A8 (fr) 2004-02-19
JP4264352B2 (ja) 2009-05-13
DE10142172A1 (de) 2003-03-20
WO2003027707A3 (fr) 2003-08-28
WO2003027707A2 (fr) 2003-04-03
JP2005504297A (ja) 2005-02-10
US20040263382A1 (en) 2004-12-30
US6956522B2 (en) 2005-10-18

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