CA2073300C - Method of correcting range migration in image generation in synthetic aperture radar - Google Patents

Method of correcting range migration in image generation in synthetic aperture radar

Info

Publication number
CA2073300C
CA2073300C CA002073300A CA2073300A CA2073300C CA 2073300 C CA2073300 C CA 2073300C CA 002073300 A CA002073300 A CA 002073300A CA 2073300 A CA2073300 A CA 2073300A CA 2073300 C CA2073300 C CA 2073300C
Authority
CA
Canada
Prior art keywords
range
migration
data
doppler domain
doppler
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
CA002073300A
Other languages
English (en)
French (fr)
Other versions
CA2073300A1 (en
Inventor
Richard Bamler
Hartmut Runge
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.)
Deutsches Zentrum fuer Luft und Raumfahrt eV
Original Assignee
Deutsches Zentrum fuer Luft und Raumfahrt eV
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 Deutsches Zentrum fuer Luft und Raumfahrt eV filed Critical Deutsches Zentrum fuer Luft und Raumfahrt eV
Publication of CA2073300A1 publication Critical patent/CA2073300A1/en
Application granted granted Critical
Publication of CA2073300C publication Critical patent/CA2073300C/en
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
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/89—Radar or analogous systems specially adapted for specific applications for mapping or imaging
    • G01S13/90—Radar or analogous systems specially adapted for specific applications for mapping or imaging using synthetic aperture techniques, e.g. synthetic aperture radar [SAR] techniques
    • G01S13/9004—SAR image acquisition techniques
    • G01S13/9011—SAR image acquisition techniques with frequency domain processing of the SAR signals in azimuth

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Radar Systems Or Details Thereof (AREA)
CA002073300A 1991-07-08 1992-07-07 Method of correcting range migration in image generation in synthetic aperture radar Expired - Lifetime CA2073300C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4122592A DE4122592C1 (enExample) 1991-07-08 1991-07-08
DEP4122592.9-35 1991-07-08

Publications (2)

Publication Number Publication Date
CA2073300A1 CA2073300A1 (en) 1993-01-09
CA2073300C true CA2073300C (en) 1996-02-27

Family

ID=6435695

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002073300A Expired - Lifetime CA2073300C (en) 1991-07-08 1992-07-07 Method of correcting range migration in image generation in synthetic aperture radar

Country Status (3)

Country Link
US (1) US5237329A (enExample)
CA (1) CA2073300C (enExample)
DE (1) DE4122592C1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105572648A (zh) * 2016-02-01 2016-05-11 中国科学院电子学研究所 一种合成孔径雷达回波数据距离徙动校正方法和装置

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5309161A (en) * 1992-12-10 1994-05-03 General Electric Co. Radar with doppler tolerant range sidelobe suppression and time domain signal processing
US5343204A (en) * 1993-07-29 1994-08-30 Unisys Corporation Auto-focusing correction for rotational acceleration effects on inverse synthetic aperture radar images
DE4427657C2 (de) * 1994-08-05 1996-10-24 Deutsche Forsch Luft Raumfahrt Verfahren zur Bilderzeugung mittels einer zweidimensionalen Datenverarbeitung bei einem Radar mit synthetischer Apertur
SE503650C2 (sv) * 1994-11-10 1996-07-22 Hans Hellsten Sätt att vid en radar förbättra radardata
DE19528613C2 (de) * 1995-08-04 1998-07-02 Daimler Benz Aerospace Ag Einrichtung zur Bewegungsfehler-Kompensation für ein Radar mit synthetischer Apertur auf der Basis rotierender Antennen (ROSA) für Hubschrauber
JP2757845B2 (ja) * 1995-12-26 1998-05-25 日本電気株式会社 合成開口レーダ装置
US5943006A (en) * 1996-10-25 1999-08-24 Patrick E. Crane RF image reconstruction and super resolution using fourier transform techniques
DE19706158C1 (de) * 1997-02-17 1998-05-20 Deutsch Zentr Luft & Raumfahrt Verfahren zur Korrektur einer objektabhängigen Spektralverschiebung in Radar-Interferogrammen
US7027425B1 (en) * 2000-02-11 2006-04-11 Alereon, Inc. Impulse radio virtual wireless local area network system and method
DE10038912A1 (de) * 2000-08-09 2002-02-21 Daimler Chrysler Ag Verfahren zur Repositionierung von Bewegtzielen in SAR-Bildern
DE102004045273B4 (de) * 2004-09-16 2008-11-06 Deutsches Zentrum für Luft- und Raumfahrt e.V. Verfahren zur Bilderzeugung bei einem Synthetischen Apertur Radar
US7307580B2 (en) * 2006-01-17 2007-12-11 Raytheon Company Non-statistical method for compressing and decompressing complex SAR data
CN102707269B (zh) * 2012-06-14 2014-04-09 电子科技大学 一种机载雷达距离走动校正方法
JP5865794B2 (ja) * 2012-07-13 2016-02-17 三菱電機株式会社 レーダ装置
CN103576147A (zh) * 2012-08-02 2014-02-12 中国科学院电子学研究所 合成孔径雷达大斜视模式下成像方法
CN104237886B (zh) * 2014-09-23 2017-01-11 中国科学院电子学研究所 一种高精度合成孔径雷达成像方法
CN105676190B (zh) * 2015-12-31 2018-07-24 中国科学院电子学研究所 一种校正合成孔径雷达回波数据的方法和装置
DE102018202864A1 (de) * 2018-01-19 2019-07-25 Infineon Technologies Ag Verfahren und System für Synthetische-Apertur-Radarsignalverarbeitung
CN108614250B (zh) * 2018-05-18 2022-02-22 西安电子科技大学 机载战场监视雷达的广域dbs图像拼接暗条纹校正方法
CN112099021A (zh) * 2020-08-14 2020-12-18 杭州电子科技大学 一种合成孔径声呐的点目标成像方法
CN113219457B (zh) * 2021-04-25 2023-01-06 中国科学院空天信息创新研究院 超宽带调频连续波sar自聚焦成像方法
CN113359134B (zh) * 2021-06-07 2024-01-16 西安电子科技大学 基于嵌入式gpu的sar数据分布式实时成像处理系统及方法
CN117092649B (zh) * 2023-10-11 2023-12-26 中国科学院空天信息创新研究院 一种月球轨道合成孔径雷达成像轨道误差补偿方法

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4132989A (en) * 1977-10-18 1979-01-02 Nasa Azimuth correlator for real-time synthetic aperture radar image processing
US4292634A (en) * 1978-12-15 1981-09-29 Nasa Real-time multiple-look synthetic aperture radar processor for spacecraft applications
US4355311A (en) * 1979-03-06 1982-10-19 Nasa Multibeam single frequency synthetic aperture radar processor for imaging separate range swaths
US4471357A (en) * 1981-10-26 1984-09-11 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Pipelined digital SAR azimuth correlator using hybrid FFT/transversal filter
US4594593A (en) * 1981-12-28 1986-06-10 Nippon Electric Co., Ltd. Synthetic aperture radar image processing system
JPS6020162A (ja) * 1983-07-15 1985-02-01 Hitachi Ltd 合成開口レ−ダ画像再生処理方式
JPH0646405B2 (ja) * 1984-09-07 1994-06-15 株式会社日立製作所 合成開口レ−ダ画像再生処理方法
DE3686222T2 (de) * 1985-04-08 1993-03-18 Hughes Aircraft Co Verarbeitungsanordnung hoher geschwindigkeit fuer ein radar mit synthetischer apertur.
IT1181998B (it) * 1985-12-24 1987-09-30 Selenia Ind Elettroniche Elaboratore di segnale per radar ad apertura sintetica particolarmente adatto al calcolo parallelo
GB8700973D0 (en) * 1987-01-17 1987-07-08 Scicon Ltd Aperture synthesis
GB8719395D0 (en) * 1987-08-17 1988-04-27 Gen Electric Co Plc Radar systems
EP0316148A3 (en) * 1987-11-11 1990-08-01 THE GENERAL ELECTRIC COMPANY, p.l.c. Processor for radar system
US5043734A (en) * 1988-12-22 1991-08-27 Hughes Aircraft Company Discrete autofocus for ultra-high resolution synthetic aperture radar
US4924229A (en) * 1989-09-14 1990-05-08 The United States Of America As Represented By The United States Department Of Energy Phase correction system for automatic focusing of synthetic aperture radar
US4999635A (en) * 1990-03-29 1991-03-12 Hughes Aircraft Company Phase difference auto focusing for synthetic aperture radar imaging
US5179383A (en) * 1991-07-15 1993-01-12 Raney R K Synthetic aperture radar processor to handle large squint with high phase and geometric accuracy
US5170170A (en) * 1991-08-13 1992-12-08 State University Of New York Radiation imaging utilizing data reconstruction to provide transforms which accurately reflect wave propagation characteristics
US5122803A (en) * 1991-11-06 1992-06-16 The United States Of America As Represented By The Secretary Of The Army Moving target imaging synthetic aperture radar
US5184133A (en) * 1991-11-26 1993-02-02 Texas Instruments Incorporated ISAR imaging radar system
US5184134A (en) * 1991-11-27 1993-02-02 Hughes Aircraft Company Fast phase difference autofocus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105572648A (zh) * 2016-02-01 2016-05-11 中国科学院电子学研究所 一种合成孔径雷达回波数据距离徙动校正方法和装置

Also Published As

Publication number Publication date
DE4122592C1 (enExample) 1993-01-28
CA2073300A1 (en) 1993-01-09
US5237329A (en) 1993-08-17

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