JP5748676B2 - 合成開口レーダーシステムによって取得された入力信号を処理する方法 - Google Patents

合成開口レーダーシステムによって取得された入力信号を処理する方法 Download PDF

Info

Publication number
JP5748676B2
JP5748676B2 JP2012008125A JP2012008125A JP5748676B2 JP 5748676 B2 JP5748676 B2 JP 5748676B2 JP 2012008125 A JP2012008125 A JP 2012008125A JP 2012008125 A JP2012008125 A JP 2012008125A JP 5748676 B2 JP5748676 B2 JP 5748676B2
Authority
JP
Japan
Prior art keywords
range
output
azimuth
applying
fft
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 - Fee Related
Application number
JP2012008125A
Other languages
English (en)
Japanese (ja)
Other versions
JP2012168168A5 (enExample
JP2012168168A (ja
Inventor
ペトロス・ティー・ボウフォウノス
デニス・ウェイ
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.)
Mitsubishi Electric Research Laboratories Inc
Original Assignee
Mitsubishi Electric Research Laboratories Inc
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 Mitsubishi Electric Research Laboratories Inc filed Critical Mitsubishi Electric Research Laboratories Inc
Publication of JP2012168168A publication Critical patent/JP2012168168A/ja
Publication of JP2012168168A5 publication Critical patent/JP2012168168A5/ja
Application granted granted Critical
Publication of JP5748676B2 publication Critical patent/JP5748676B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Radar Systems Or Details Thereof (AREA)
JP2012008125A 2011-02-11 2012-01-18 合成開口レーダーシステムによって取得された入力信号を処理する方法 Expired - Fee Related JP5748676B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/026,085 US8493262B2 (en) 2011-02-11 2011-02-11 Synthetic aperture radar image formation system and method
US13/026,085 2011-02-11

Publications (3)

Publication Number Publication Date
JP2012168168A JP2012168168A (ja) 2012-09-06
JP2012168168A5 JP2012168168A5 (enExample) 2014-12-18
JP5748676B2 true JP5748676B2 (ja) 2015-07-15

Family

ID=46636470

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2012008125A Expired - Fee Related JP5748676B2 (ja) 2011-02-11 2012-01-18 合成開口レーダーシステムによって取得された入力信号を処理する方法

Country Status (2)

Country Link
US (1) US8493262B2 (enExample)
JP (1) JP5748676B2 (enExample)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201204792D0 (en) * 2012-03-19 2012-05-02 Qinetiq Ltd Detection techniques
US9335410B2 (en) 2013-02-19 2016-05-10 Mitsubishi Electric Research Laboratories, Inc. System and method for multiple spotlight synthetic radar imaging using random beam steering
KR101465370B1 (ko) * 2013-12-09 2014-11-26 한국항공우주연구원 위상누적다항식을 이용하여 양방향 첩신호를 생성하는 장치 및 방법
CN103983971B (zh) * 2014-04-10 2016-08-24 西安电子科技大学 星载sar的地面运动目标成像方法
US9448300B2 (en) * 2014-05-28 2016-09-20 Nxp B.V. Signal-based data compression
CN104182942B (zh) * 2014-08-26 2016-11-16 电子科技大学 Sar图像方位模糊抑制方法
EP3214460B1 (en) * 2014-10-30 2023-10-11 Mitsubishi Electric Corporation Synthetic aperture radar device
WO2016153914A1 (en) 2015-03-25 2016-09-29 King Abdulaziz City Of Science And Technology Apparatus and methods for synthetic aperture radar with digital beamforming
WO2017044168A2 (en) 2015-06-16 2017-03-16 King Abdulaziz City Of Science And Technology Efficient planar phased array antenna assembly
US9977116B2 (en) 2015-10-05 2018-05-22 Analog Devices, Inc. Scaling fixed-point fast Fourier transforms in radar and sonar applications
US10955546B2 (en) 2015-11-25 2021-03-23 Urthecast Corp. Synthetic aperture radar imaging apparatus and methods
KR101821607B1 (ko) * 2016-05-03 2018-01-25 엘아이지넥스원 주식회사 오메가-ｋ 알고리즘의 멀티 컴퓨터 프로세싱을 사용한 ｓａｒ 및 ｉｓａｒ 영상 생성 장치
CN106526553B (zh) * 2016-10-31 2019-05-24 北京空间飞行器总体设计部 一种高分辨率sar卫星距离模糊度性能分析方法
DE102017205649B3 (de) * 2017-04-03 2018-03-22 Deutsches Zentrum für Luft- und Raumfahrt e.V. Verfahren und Vorrichtung zur rechnergestützten Verarbeitung von SAR-Rohdaten
CA3064586A1 (en) 2017-05-23 2018-11-29 King Abdullah City Of Science And Technology Synthetic aperture radar imaging apparatus and methods for moving targets
EP3631504B8 (en) 2017-05-23 2023-08-16 Spacealpha Insights Corp. Synthetic aperture radar imaging apparatus and methods
CA3083033A1 (en) 2017-11-22 2019-11-28 Urthecast Corp. Synthetic aperture radar apparatus and methods
CN109061640B (zh) * 2018-07-02 2022-06-21 南京信息工程大学 一种用于顺轨干涉sar海流反演的方位模糊抑制方法
CN109975804B (zh) * 2019-03-04 2023-04-07 广东工业大学 一种多平台星座sar融合相参成像方法
CN113419241B (zh) * 2021-05-28 2023-03-21 中国科学院空天信息创新研究院 一种信号重构方法及设备
CN113805173A (zh) * 2021-08-04 2021-12-17 中国人民解放军国防科技大学 一种正交编码孔径全极化雷达图像二维联合重构方法
CN114779247B (zh) * 2022-04-07 2024-03-29 南京航空航天大学 一种基于频率变标的星载稀疏合成孔径雷达斜视成像方法
CN114895305B (zh) * 2022-04-18 2024-03-29 南京航空航天大学 一种基于l1范数正则化的稀疏sar自聚焦成像方法及装置
EP4357804B1 (en) * 2022-10-17 2025-07-02 Nxp B.V. A method of processing radar data
CN115511011B (zh) * 2022-11-21 2023-06-09 南京信息工程大学 一种基于对抗生成网络模型的雷达资料订正方法及系统

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61100678A (ja) * 1984-10-23 1986-05-19 Natl Space Dev Agency Japan<Nasda> 合成開口レ−ダ
DE19609728C2 (de) * 1996-03-13 1998-01-29 Deutsche Forsch Luft Raumfahrt Verfahren zur Azimut-Skalierung von SAR-Daten und hochgenauer Prozessor zur zweidimensionalen Verarbeitung von ScanSAR-Daten
US6763148B1 (en) * 2000-11-13 2004-07-13 Visual Key, Inc. Image recognition methods
JP2002315004A (ja) * 2001-04-09 2002-10-25 Ntt Docomo Inc 画像符号化方法及び装置、画像復号方法及び装置、並びに画像処理システム
JP2004212256A (ja) * 2003-01-06 2004-07-29 National Institute Of Information & Communication Technology Ｓａｒ画像のノイズ低減処理方法及び装置
DE102007031020B3 (de) * 2007-07-04 2008-12-24 Deutsches Zentrum für Luft- und Raumfahrt e.V. Verfahren zur Verarbeitung von TOPS(Terrain Observation by Progressive Scan)-SAR(Synthetic Aperture Radar)-Rohdaten und Verwendung des Verfahrens
US20090278921A1 (en) * 2008-05-12 2009-11-12 Capso Vision, Inc. Image Stabilization of Video Play Back
JP5369282B2 (ja) * 2008-11-14 2013-12-18 株式会社パスコ 植生生育状況解析方法、プログラムおよび植生生育状況解析装置
US8204301B2 (en) * 2009-02-25 2012-06-19 Seiko Epson Corporation Iterative data reweighting for balanced model learning
CN102439975B (zh) * 2009-04-14 2015-08-26 汤姆森特许公司 用于在基于稀疏性的去伪影滤波中响应于可变变换的滤波器参数的确定和选择的方法和设备

Also Published As

Publication number Publication date
US20120206292A1 (en) 2012-08-16
JP2012168168A (ja) 2012-09-06
US8493262B2 (en) 2013-07-23

Similar Documents

Publication Publication Date Title
JP5748676B2 (ja) 合成開口レーダーシステムによって取得された入力信号を処理する方法
CN113567985B (zh) 逆合成孔径雷达成像方法、装置、电子设备及存储介质
Xu et al. High-resolution inverse synthetic aperture radar imaging and scaling with sparse aperture
Uḡur et al. SAR image reconstruction and autofocus by compressed sensing
US5068597A (en) Spectral estimation utilizing a minimum free energy method with recursive reflection coefficients
US9791563B1 (en) Joint synthetic aperture radar plus ground moving target indicator from single-channel radar using compressive sensing
JP7297164B2 (ja) 画像取得設定にとらわれない人工知能（ａｉ）モジュールを用いた画像再構成
CN113030962A (zh) 机载太赫兹合成孔径雷达及成像方法
CN112965066B (zh) 一种单比特带通采样合成孔径雷达成像方法
CN112099007A (zh) 适用于非理想天线方向图的方位向多通道sar模糊抑制方法
CN108279404A (zh) 一种基于空间谱估计的双通道sar相位误差校正方法
CN118501879A (zh) 压缩感知高分辨率sar成像方法、装置、设备、介质及产品
CN115453528B (zh) 基于快速sbl算法实现分段观测isar高分辨成像方法及装置
CN113608218A (zh) 一种基于后向投影原理的频域干涉相位稀疏重构方法
Uḡur et al. SAR image reconstruction by expectation maximization based matching pursuit
CN108318891B (zh) 一种基于改进sva和cs的sal数据旁瓣的压低方法
Liu et al. Sparsity-driven distributed array imaging
Önhon et al. A nonquadratic regularization-based technique for joint SAR imaging and model error correction
CN114895305B (zh) 一种基于l1范数正则化的稀疏sar自聚焦成像方法及装置
CN118818495B (zh) 基于拉普拉斯先验稀疏贝叶斯学习的三维毫米波成像方法
CN118209981B (zh) 一种基于pca的稀疏条带sar自聚焦成像方法、装置及介质
Smith An analytic nonlinear approach to sidelobe reduction
Wei et al. Saturation-robust SAR image formation
CN118818497A (zh) 一种基于欠采样回波的稀疏sar自聚焦成像方法
CN113567940A (zh) 基于长时间积累的宽带雷达系统通道误差估计方法、计算机装置和存储介质

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20141031

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20141031

A871 Explanation of circumstances concerning accelerated examination

Free format text: JAPANESE INTERMEDIATE CODE: A871

Effective date: 20141031

A975 Report on accelerated examination

Free format text: JAPANESE INTERMEDIATE CODE: A971005

Effective date: 20141119

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20141224

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20150318

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20150414

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20150512

R150 Certificate of patent or registration of utility model

Ref document number: 5748676

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees