CA2628160C - Synthetic aperture radar - Google Patents

Synthetic aperture radar Download PDF

Info

Publication number
CA2628160C
CA2628160C CA002628160A CA2628160A CA2628160C CA 2628160 C CA2628160 C CA 2628160C CA 002628160 A CA002628160 A CA 002628160A CA 2628160 A CA2628160 A CA 2628160A CA 2628160 C CA2628160 C CA 2628160C
Authority
CA
Canada
Prior art keywords
radar
prf
pulses
stream
received
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.)
Active
Application number
CA002628160A
Other languages
English (en)
French (fr)
Other versions
CA2628160A1 (en
Inventor
David Charles Lancashire
Charles David Hall
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.)
Airbus Defence and Space Ltd
Original Assignee
Astrium Ltd
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
Priority claimed from GB0523352A external-priority patent/GB0523352D0/en
Application filed by Astrium Ltd filed Critical Astrium Ltd
Publication of CA2628160A1 publication Critical patent/CA2628160A1/en
Application granted granted Critical
Publication of CA2628160C publication Critical patent/CA2628160C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • G01S13/22—Systems for measuring distance only using transmission of interrupted, pulse modulated waves using irregular pulse repetition 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
    • G01S13/89—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
    • G01S13/904—SAR modes
    • 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
    • G01S13/904—SAR modes
    • G01S13/9054—Stripmap mode
    • 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
    • G01S13/904—SAR modes
    • G01S13/9056—Scan SAR mode
    • 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
    • G01S7/292—Extracting wanted echo-signals
    • G01S7/2923—Extracting wanted echo-signals based on data belonging to a number of consecutive radar periods
    • G01S7/2926—Extracting wanted echo-signals based on data belonging to a number of consecutive radar periods by integration

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Radar Systems Or Details Thereof (AREA)
CA002628160A 2005-11-16 2006-11-15 Synthetic aperture radar Active CA2628160C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
EP05257074.4 2005-11-16
GB0523352A GB0523352D0 (en) 2005-11-16 2005-11-16 Synthetic aperture radar
EP05257074 2005-11-16
GB0523352.3 2005-11-16
PCT/GB2006/050390 WO2007057707A1 (en) 2005-11-16 2006-11-15 Synthetic aperture radar

Publications (2)

Publication Number Publication Date
CA2628160A1 CA2628160A1 (en) 2007-05-24
CA2628160C true CA2628160C (en) 2009-10-13

Family

ID=37564343

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002628160A Active CA2628160C (en) 2005-11-16 2006-11-15 Synthetic aperture radar

Country Status (7)

Country Link
US (1) US7705766B2 (https=)
EP (1) EP1949133B1 (https=)
JP (1) JP5155175B2 (https=)
CN (1) CN101310193B (https=)
CA (1) CA2628160C (https=)
ES (1) ES2388498T3 (https=)
WO (1) WO2007057707A1 (https=)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2364887C2 (ru) * 2007-09-25 2009-08-20 ОАО "Уральское проектно-конструкторское бюро " Деталь" Способ навигации летательного аппарата по радиолокационным изображениям земной поверхности с использованием цифровых моделей местности
RU2347239C1 (ru) * 2007-10-02 2009-02-20 Государственное образовательное учреждение высшего профессионального образования Воронежское высшее военное авиационное инженерное училище (военный институт) Способ формирования радиолокационного изображения объектов
RU2360267C1 (ru) * 2007-11-06 2009-06-27 Военная академия войсковой противовоздушной обороны Вооруженных Сил Российской Федерации Способ выбора интервала инверсного синтезирования с рассчитываемой угловой скоростью поворота цели относительно радиолокатора
RU2378662C1 (ru) * 2008-06-02 2010-01-10 Государственное образовательное учреждение высшего профессионального образования Тамбовское высшее военное авиационное инженерное училище радиоэлектроники (военный институт) Способ выбора оптимальной продолжительности интервала синтезирования в радиолокационной станции с инверсным синтезированием апертуры антенны
RU2392635C2 (ru) * 2008-06-04 2010-06-20 Федеральное государственное унитарное предприятие "Государственный научно-исследовательский институт авиационных систем" Способ обнаружения и определения координат искомого объекта
FR2938925B1 (fr) 2008-11-21 2015-09-04 Thales Sa Dispositif de radar pour la surveillance maritime
CN102798868B (zh) * 2012-07-27 2014-05-07 符建 基于飞行光谱的三维成像雷达系统
JP2014052336A (ja) * 2012-09-10 2014-03-20 Mitsubishi Electric Corp 信号処理装置およびレーダ観測方法
ITTO20130108A1 (it) * 2013-02-08 2014-08-09 Thales Alenia Space Italia S P A C On Unico Socio Innovativo metodo per generare immagini sar in modalita' stripmap
GB2512619B (en) * 2013-04-03 2018-11-14 Leonardo Mw Ltd Radar systems and methods
CA2980920C (en) 2015-03-25 2023-09-26 King Abdulaziz City Of Science And Technology Apparatus and methods for synthetic aperture radar with digital beamforming
CA2990063A1 (en) 2015-06-16 2017-03-16 King Abdulaziz City Of Science And Technology Efficient planar phased array antenna assembly
EP3380864A4 (en) 2015-11-25 2019-07-03 Urthecast Corp. APPARATUS AND METHODS FOR OPEN SYNTHESIS RADAR IMAGING
US10288726B2 (en) * 2016-06-14 2019-05-14 Raytheon Canada Limited Impulse noise detection and removal for radar and communication systems
CN106291544B (zh) * 2016-07-19 2018-08-10 西安交通大学 一种混合模式成像装置及方法
WO2018217814A1 (en) 2017-05-23 2018-11-29 Urthecast Corp. Synthetic aperture radar imaging apparatus and methods
WO2018217902A1 (en) 2017-05-23 2018-11-29 King Abdullah City Of Science And Technology Synthetic aperture radar imaging apparatus and methods for moving targets
US10444348B2 (en) * 2017-08-17 2019-10-15 Gm Global Technology Operations Separation of close targets based on Doppler precoding
EP3698167A4 (en) 2017-11-22 2021-11-17 Urthecast Corp. SYNTHETIC OPENING RADAR FORMING APPARATUS AND ASSOCIATED PROCESSES
US10371797B1 (en) * 2018-05-23 2019-08-06 Zendar Inc. Systems and methods for enhancing target detection
US11237246B1 (en) * 2020-07-13 2022-02-01 Dbtsystems Llc Pulsed radar with multispectral modulation to reduce interference, increase PRF, and improve doppler velocity measurement
KR102260877B1 (ko) * 2021-02-22 2021-06-07 아주대학교산학협력단 위성 합성개구레이더의 원시데이터 처리 방법 및 장치
GB2615125B (en) * 2022-01-31 2025-04-30 Iceye Oy Reducing ambiguities in synthetic aperture radar images

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4106019A (en) * 1972-10-05 1978-08-08 Hughes Aircraft Company Range resolving doppler radar system
FR2599853B1 (fr) * 1981-05-15 1989-03-31 Thomson Csf Procede de levee d'ambiguite en distance dans un radar pulse doppler, dispositif pour sa mise en oeuvre et radar comportant un tel dispositif
JPS5958375A (ja) * 1982-09-28 1984-04-04 Toshiba Corp レ−ダ装置
US4593286A (en) * 1983-04-25 1986-06-03 Westinghouse Electric Corp. Method of operating an agile beam coherent radar
JPS6135382A (ja) * 1984-07-28 1986-02-19 Natl Space Dev Agency Japan<Nasda> 合成開口レ−ダ
US4706088A (en) * 1986-03-24 1987-11-10 United Technologies Corporation Synthetic aperture radar focusing
GB8615204D0 (en) * 1986-06-21 1986-10-29 Thorn Emi Electronics Ltd Radar
GB8906520D0 (en) * 1989-03-21 1989-11-08 British Aerospace Synthetic aperture radar
DE4026874C1 (https=) * 1990-08-25 1992-04-30 Deutsche Forschungsanstalt Fuer Luft- Und Raumfahrt Ev, 5300 Bonn, De
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
DE19521624A1 (de) 1995-06-14 1995-12-21 Rst Raumfahrt Systemtechnik Gm Verfahren und Vorrichtung zur Erzeugung einer großen Streifenbreite bei Radargeräten mit synthetischer Apertur (SAR) durch die Verwendung von subsequent gepulsten Frequenzkanälen
US5745069A (en) 1996-09-10 1998-04-28 Ball Corporation Reduction of radar antenna area
US5847677A (en) * 1997-07-07 1998-12-08 The United States Of America As Represented By The Secretary Of The Army Random number generator for jittered pulse repetition interval radar systems
ATE317549T1 (de) * 2001-03-15 2006-02-15 Seitensichtradarsystem mit synthetischer apertur
US6633253B2 (en) * 2001-04-02 2003-10-14 Thomas J. Cataldo Dual synthetic aperture radar system
US7196653B2 (en) * 2003-05-21 2007-03-27 Astrium Limited Imaging apparatus and method

Also Published As

Publication number Publication date
JP2009516191A (ja) 2009-04-16
ES2388498T3 (es) 2012-10-16
US7705766B2 (en) 2010-04-27
US20090051587A1 (en) 2009-02-26
EP1949133B1 (en) 2012-07-04
WO2007057707A1 (en) 2007-05-24
CA2628160A1 (en) 2007-05-24
JP5155175B2 (ja) 2013-02-27
CN101310193A (zh) 2008-11-19
CN101310193B (zh) 2012-03-14
EP1949133A1 (en) 2008-07-30

Similar Documents

Publication Publication Date Title
CA2628160C (en) Synthetic aperture radar
Raney Synthetic aperture imaging radar and moving targets
CA3158356C (en) Maritime surveillance radar
US6781540B1 (en) Radar system having multi-platform, multi-frequency and multi-polarization features and related methods
EP1485728B1 (en) A noise suppression system and method for phased-array based systems
US5051749A (en) Synthetic aperture radar assembly and a method of creating a radar image of a planet surface using such an assembly
US8059023B2 (en) Radar device for maritime surveillance
EP0671636A1 (en) Method of evaluating the image quality of a synthetic aperture radar
Skolnik et al. An ultrawideband microwave-radar conceptual design
Villano et al. NewSpace SAR: Disruptive concepts for cost-effective SAR system design
GB2104753A (en) Radars
Livingstone et al. Ship detection and measurement of ship motion by multi-aperture Synthetic Aperture Radar
Rolfe Radar image overlay on an ECDIS system-an overview
Villano et al. Ambiguous Synthetic Aperture Radar Modes for Wide Swath Ship Monitoring and Digital Elevation Model Generation in a Single Pass
WO2025168337A1 (en) Method and system for processing sar raw data acquired by a sar system
Di Martino et al. Coprime Synthetic Aperture Radar: State of the Art and Application to Ship Detection
Kislyy et al. Staggered SAR Range Ambiguity Suppression with Quasi-Orthogonal Signals
Ustalli et al. Demonstration of Staggered Ambiguous SAR Mode for Ship Monitoring Using TerraSAR-X
Yang et al. Comparison of ship detectability using SAR polarization data: Envisat ASAR AP mode
Villano et al. Cost-Effective Deformation Monitoring over Ultrawide Swaths Using Ambiguous Staggered SAR
GB2256765A (en) Imaging apparatus
Farina STAP for SAR
Wagner Investigation of Frequency Agility for LPI-SAR Waveforms
Richard et al. An innovative spaceborne radar concept for global maritime surveillance: Description and performance demonstration
Werle Radarsat SAR azimuth ambiguity patterns-the ghost fleet of Halifax Harbour and implications for applications

Legal Events

Date Code Title Description
EEER Examination request
W00 Other event occurred

Free format text: ST27 STATUS EVENT CODE: A-4-4-W10-W00-W100 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: LETTER SENT

Effective date: 20251024

W00 Other event occurred

Free format text: ST27 STATUS EVENT CODE: A-4-4-W10-W00-W100 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: LETTER SENT

Effective date: 20260107

H13 Ip right lapsed

Free format text: ST27 STATUS EVENT CODE: N-4-6-H10-H13-H100 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: MAINTENANCE FEE AND LATE FEE NOT PAID BY DEADLINE OF NOTICE

Effective date: 20260206

W00 Other event occurred

Free format text: ST27 STATUS EVENT CODE: N-6-6-W10-W00-W100 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: LETTER SENT

Effective date: 20260210