CA2043212C - Method for resolving ambiguity in the determination of antenna angle of view and doppler frequency in synthetic aperture radar - Google Patents

Method for resolving ambiguity in the determination of antenna angle of view and doppler frequency in synthetic aperture radar

Info

Publication number
CA2043212C
CA2043212C CA002043212A CA2043212A CA2043212C CA 2043212 C CA2043212 C CA 2043212C CA 002043212 A CA002043212 A CA 002043212A CA 2043212 A CA2043212 A CA 2043212A CA 2043212 C CA2043212 C CA 2043212C
Authority
CA
Canada
Prior art keywords
doppler
range
frequency
fdc
determination
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
CA002043212A
Other languages
English (en)
French (fr)
Other versions
CA2043212A1 (en
Inventor
Hartmut Runge
Richard Bamler
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 CA2043212A1 publication Critical patent/CA2043212A1/en
Application granted granted Critical
Publication of CA2043212C publication Critical patent/CA2043212C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/02—Head boxes of Fourdrinier machines
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/02—Head boxes of Fourdrinier machines
    • D21F1/028—Details of the nozzle section
    • 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)
CA002043212A 1990-08-25 1991-05-24 Method for resolving ambiguity in the determination of antenna angle of view and doppler frequency in synthetic aperture radar Expired - Lifetime CA2043212C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4026874.8 1990-08-25
DE4026874A DE4026874C1 (OSRAM) 1990-08-25 1990-08-25

Publications (2)

Publication Number Publication Date
CA2043212A1 CA2043212A1 (en) 1992-02-26
CA2043212C true CA2043212C (en) 1995-10-17

Family

ID=6412879

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002043212A Expired - Lifetime CA2043212C (en) 1990-08-25 1991-05-24 Method for resolving ambiguity in the determination of antenna angle of view and doppler frequency in synthetic aperture radar

Country Status (7)

Country Link
US (1) US5307070A (OSRAM)
CA (1) CA2043212C (OSRAM)
DE (1) DE4026874C1 (OSRAM)
FR (1) FR2669117B1 (OSRAM)
GB (1) GB2247373B (OSRAM)
IT (1) IT1248097B (OSRAM)
NO (1) NO178513C (OSRAM)

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US5463397A (en) * 1993-10-25 1995-10-31 Hughes Aircraft Company Hyper-precision SAR interferometry using a dual-antenna multi-pass SAR system
US5442359A (en) * 1994-06-30 1995-08-15 Unisys Corporation Apparatus and method for mitigating range-doppler ambiguities in pulse-doppler radars
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
IL127650A0 (en) * 1996-06-28 1999-10-28 Milkovich Systems Engineering Improved fast fourier transform processor
US5745069A (en) * 1996-09-10 1998-04-28 Ball Corporation Reduction of radar antenna area
US5758277A (en) * 1996-09-19 1998-05-26 Corsair Communications, Inc. Transient analysis system for characterizing RF transmitters by analyzing transmitted RF signals
DE19706158C1 (de) * 1997-02-17 1998-05-20 Deutsch Zentr Luft & Raumfahrt Verfahren zur Korrektur einer objektabhängigen Spektralverschiebung in Radar-Interferogrammen
US6130641A (en) * 1998-09-04 2000-10-10 Simon Fraser University Imaging methods and apparatus using model-based array signal processing
US6492932B1 (en) * 2001-06-13 2002-12-10 Raytheon Company System and method for processing squint mapped synthetic aperture radar data
US6646593B1 (en) * 2002-01-08 2003-11-11 Science Applications International Corporation Process for mapping multiple-bounce ghosting artifacts from radar imaging data
US7259715B1 (en) 2002-01-08 2007-08-21 Science Applications International Corporation Method for developing and using an image reconstruction algorithm for multipath scattering
GB0520332D0 (en) * 2005-10-06 2005-11-16 Roke Manor Research Calibration of phased array antennas
EP1949133B1 (en) * 2005-11-16 2012-07-04 Astrium Limited Synthetic aperture radar
US8189962B2 (en) * 2006-12-19 2012-05-29 Hitachi Kokusai Electric Inc. Image processing apparatus
CN102129064B (zh) * 2010-01-15 2013-01-02 中国科学院电子学研究所 普适性星载sar原始数据矢量量化码本设计算法
US8344942B2 (en) 2010-04-29 2013-01-01 Raytheon Company System and method for resolving ambiguity in radar, lidar, and acoustic systems
CN103323822B (zh) * 2012-08-17 2015-07-15 中国科学院电子学研究所 一种估计通道误差的方法及装置
CN103064084A (zh) * 2012-09-24 2013-04-24 中国航天科工集团第二研究院二O七所 基于距离频域的解模糊方法
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
US11639995B2 (en) * 2017-08-09 2023-05-02 Sony Corporation Performance of a time of flight (ToF) laser range finding system using acoustic-based direction of arrival (DoA)
CN108594227B (zh) * 2018-04-24 2020-09-25 中国科学院电子学研究所 适用于非均匀场景的基带多普勒中心估计方法
CN109932700B (zh) * 2019-03-28 2021-02-19 北京润科通用技术有限公司 一种多普勒速度的解模糊方法及装置
CN111487621B (zh) * 2020-05-08 2023-06-13 宁波大学 一种基于雷达图像的海表流场反演方法及电子设备
CN115187830A (zh) * 2022-06-22 2022-10-14 北京工业大学 一种基于sar图像和信号的人工电磁环境构建效果的模糊综合评估方法
CN116338686A (zh) * 2023-02-02 2023-06-27 中国科学院空天信息创新研究院 用于sar方位模糊干扰图像的目标检测方法及装置
CN116626629B (zh) * 2023-07-21 2023-09-22 中国科学院空天信息创新研究院 一种星载斜视sar系统模糊综合性能评估方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE48704C (de) * A. reiche in Plauen bei Dresden Randleisten für Plakate u. s. w
US3768096A (en) * 1968-09-30 1973-10-23 North American Rockwell Focusing control of synthetic aperture processing for sidelooking radar
GB2086169A (en) * 1980-09-26 1982-05-06 Org Europeene De Rech Method of processing data generated by a synthetic aperture radar system
US4563686A (en) * 1982-06-17 1986-01-07 Grumman Aerospace Corporation Range/doppler ship imaging for ordnance control
GB8630315D0 (en) * 1986-12-18 1987-04-15 Gen Electric Co Plc Synthetic aperture radar
GB8700973D0 (en) * 1987-01-17 1987-07-08 Scicon Ltd Aperture synthesis
GB8714746D0 (en) * 1987-06-24 1987-07-29 Secr Defence Synthetic aperture radar
GB2212355B (en) * 1987-11-11 1991-12-18 Gen Electric Co Plc Processor for radar system
US4853699A (en) * 1987-11-13 1989-08-01 Hughes Aircraft Company Method for cancelling azimuth ambiguity in a SAR receiver
DE8904976U1 (de) * 1989-04-20 1989-06-15 Kernforschungsanlage Jülich GmbH, 5170 Jülich Bioreaktor mit Schüttkörperbett in einem drehbaren horizontal zylindrischen Behälter
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

Also Published As

Publication number Publication date
GB9117759D0 (en) 1991-10-02
NO913190D0 (no) 1991-08-15
CA2043212A1 (en) 1992-02-26
GB2247373B (en) 1994-07-27
DE4026874C1 (OSRAM) 1992-04-30
NO913190L (no) 1992-02-26
FR2669117A1 (fr) 1992-05-15
NO178513C (no) 1996-04-10
GB2247373A (en) 1992-02-26
US5307070A (en) 1994-04-26
ITTO910269A1 (it) 1992-10-11
NO178513B (no) 1996-01-02
ITTO910269A0 (it) 1991-04-11
FR2669117B1 (fr) 1998-06-26
IT1248097B (it) 1995-01-05

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Legal Events

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EEER Examination request
MKLA Lapsed
MKEC Expiry (correction)

Effective date: 20121202