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WO2008125929A3 - Method for processing multi-pass radar data for sensing and analysing multiple components of non-stationary scatterers - Google Patents

Method for processing multi-pass radar data for sensing and analysing multiple components of non-stationary scatterers Download PDF

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Publication number
WO2008125929A3
WO2008125929A3 PCT/IB2008/000344 IB2008000344W WO2008125929A3 WO 2008125929 A3 WO2008125929 A3 WO 2008125929A3 IB 2008000344 W IB2008000344 W IB 2008000344W WO 2008125929 A3 WO2008125929 A3 WO 2008125929A3
Authority
WO
WIPO (PCT)
Prior art keywords
scatterers
radar
height
displacement velocity
layover
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.)
Ceased
Application number
PCT/IB2008/000344
Other languages
French (fr)
Other versions
WO2008125929A2 (en
WO2008125929A9 (en
WO2008125929A4 (en
Inventor
Fabrizio Lombardini
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.)
Universita di Pisa
Original Assignee
Universita di Pisa
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 Universita di Pisa filed Critical Universita di Pisa
Priority to EP08709820A priority Critical patent/EP2160628A2/en
Publication of WO2008125929A2 publication Critical patent/WO2008125929A2/en
Publication of WO2008125929A9 publication Critical patent/WO2008125929A9/en
Publication of WO2008125929A3 publication Critical patent/WO2008125929A3/en
Publication of WO2008125929A4 publication Critical patent/WO2008125929A4/en
Anticipated expiration legal-status Critical
Ceased 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
    • G01S13/9021—SAR image post-processing techniques
    • G01S13/9023—SAR image post-processing techniques combined with interferometric 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
    • G01S13/88—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
    • G01S13/9021—SAR image post-processing techniques
    • G01S13/9029—SAR image post-processing techniques specially adapted for moving target detection within a single SAR image or within multiple SAR images taken at the same time

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)
  • Radar Systems Or Details Thereof (AREA)

Abstract

The invention relates to a method for processing imaging radar data of distributed and/or multiple layover scatterers contained in one or more preselected radar resolution cells, acquired by a radar system having at least one receiving channel with multi-pass multibaseline acquisition and consisting of at least one set of complex valued pixels. Each set corresponds substantially to a respective resolution cell in a plurality of complex focalized radar images, and each radar image is formed through each receiving channel for each pass. The method according to the invention comprises a multidimensional separation step, in particular two-dimensional, in a domain comprising the height/displacement velocity joint domain, of multiple radio echo components coming from the distributed and/or multiple layover scatterers in said or each cell, where the separation is carried out by means of two-dimensional processing step of the data in the baseline/acquisition time joint domain, said separation comprising the extraction in the height/displacement velocity joint domain of data of a distribution on height and displacement velocity of said scatterers and/or of components of said distributed and/or multiple scatterers. This method allows forming a differential tomographic image (70) that describes the reconstructed radio reflectivity (71) vs. height (72) and the displacement velocity (73), for three layover isolated scatterers from which three dominant reflectivity peaks depend (74,75 and 76), with a maximum ambiguities level (77) that is satisfactorily low.
PCT/IB2008/000344 2007-02-14 2008-02-14 Method for processing multi-pass radar data for sensing and analysing multiple components of non-stationary scatterers Ceased WO2008125929A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08709820A EP2160628A2 (en) 2007-02-14 2008-02-14 Method for processing multi-pass radar data for sensing and analysing multiple components of non-stationary scatterers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000012A ITPI20070012A1 (en) 2007-02-14 2007-02-14 METHOD OF PROCESSING DATA MULTI-ASSASSMENT RADAR FOR DETECTION AND ANALYSIS OF MULTIPLE COMPONENTS OF NON-STATIONARY REPRODUCERS
ITPI2007A000012 2007-02-14

Publications (4)

Publication Number Publication Date
WO2008125929A2 WO2008125929A2 (en) 2008-10-23
WO2008125929A9 WO2008125929A9 (en) 2008-12-11
WO2008125929A3 true WO2008125929A3 (en) 2009-04-09
WO2008125929A4 WO2008125929A4 (en) 2009-05-28

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2008/000344 Ceased WO2008125929A2 (en) 2007-02-14 2008-02-14 Method for processing multi-pass radar data for sensing and analysing multiple components of non-stationary scatterers

Country Status (3)

Country Link
EP (1) EP2160628A2 (en)
IT (1) ITPI20070012A1 (en)
WO (1) WO2008125929A2 (en)

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CN105699951A (en) * 2016-03-09 2016-06-22 中国人民解放军镇江船艇学院 DEM data superposition-based marine radar echo simulation method
CN107861114A (en) * 2017-11-07 2018-03-30 哈尔滨工程大学 A kind of noise suppressing method based on the reversion of underwater sound array spatial domain
CN110456350A (en) * 2019-08-23 2019-11-15 长沙天仪空间科技研究院有限公司 A Spaceborne SAR Constellation System

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CN103308897B (en) * 2013-05-14 2015-05-27 中国科学院电子学研究所 Method for fast realizing signal processing of passive radar based on GPU (Graphics Processing Unit)
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CN108445457B (en) * 2018-02-12 2020-08-04 中国人民解放军61540部队 Method for calibrating three-dimensional baseline of satellite-borne distributed interferometric synthetic aperture radar
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CN109633648B (en) * 2019-01-22 2022-04-29 北京航空航天大学 Multi-baseline phase estimation device and method based on likelihood estimation
CN111239734B (en) * 2020-02-24 2022-09-13 西南交通大学 A method for extracting stable surface scatterers in deep loess
CN111696207B (en) * 2020-05-28 2022-10-11 电子科技大学 A Multi-Baseline DEM Fusion Method Based on Guided Filtering
CN112068134B (en) * 2020-09-09 2022-07-08 中国航空工业集团公司雷华电子技术研究所 Angular error slope value detection method, device and equipment
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JP7581999B2 (en) * 2021-03-22 2024-11-13 日本電気株式会社 OBJECT DETECTION DEVICE, OBJECT DETECTION METHOD, AND PROGRAM
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CN115015937A (en) * 2022-07-08 2022-09-06 内蒙古工业大学 Method and device for predicting slope landslide by using micro-variation monitoring radar
CN115825960B (en) * 2022-11-22 2023-12-19 北京卫星信息工程研究所 Sea surface wind field inversion method based on satellite-borne GNSS-S radar
CN116338689A (en) * 2023-03-13 2023-06-27 扎赉诺尔煤业有限责任公司 A Method of Extracting DS Points on Building Surface Using Phase Correlation Technology
CN116203519B (en) * 2023-05-05 2023-06-27 中国电子科技集团公司信息科学研究院 Error calibration method for distributed radar system transceiver channel distance system
CN116577753B (en) * 2023-05-06 2025-08-22 中国科学院国家天文台 Method for determining refracted optical path and imaging method for multi-transmitter multi-receiver radar
CN117854257B (en) * 2024-03-07 2024-05-24 成都理工大学 Secondary disaster early warning method based on foundation SAR monitoring deformation data
CN119199780B (en) * 2024-11-26 2025-02-25 中国铁道科学研究院集团有限公司铁道建筑研究所 A method for calculating the coverage rate of railway terrain deformation scattering points in plain areas considering elevation compensation
CN119247315B (en) * 2024-12-06 2025-03-28 南京理工大学 Radar high-speed high-maneuvering target detection method and system based on sparse reconstruction
CN119805453B (en) * 2024-12-26 2025-09-12 武汉大学 Self-adaptive SAR imaging method and system under complex background environment
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105699951A (en) * 2016-03-09 2016-06-22 中国人民解放军镇江船艇学院 DEM data superposition-based marine radar echo simulation method
CN105699951B (en) * 2016-03-09 2018-05-29 中国人民解放军镇江船艇学院 Marine radar analogue echoes method based on dem data superposition
CN107861114A (en) * 2017-11-07 2018-03-30 哈尔滨工程大学 A kind of noise suppressing method based on the reversion of underwater sound array spatial domain
CN107861114B (en) * 2017-11-07 2020-12-29 哈尔滨工程大学 A Noise Suppression Method Based on Spatial Inversion of Underwater Acoustic Array
CN110456350A (en) * 2019-08-23 2019-11-15 长沙天仪空间科技研究院有限公司 A Spaceborne SAR Constellation System

Also Published As

Publication number Publication date
ITPI20070012A1 (en) 2008-08-15
WO2008125929A2 (en) 2008-10-23
WO2008125929A9 (en) 2008-12-11
EP2160628A2 (en) 2010-03-10
WO2008125929A4 (en) 2009-05-28

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