JP7670159B2 - 信号処理システムおよび信号処理方法 - Google Patents

信号処理システムおよび信号処理方法 Download PDF

Info

Publication number
JP7670159B2
JP7670159B2 JP2023556041A JP2023556041A JP7670159B2 JP 7670159 B2 JP7670159 B2 JP 7670159B2 JP 2023556041 A JP2023556041 A JP 2023556041A JP 2023556041 A JP2023556041 A JP 2023556041A JP 7670159 B2 JP7670159 B2 JP 7670159B2
Authority
JP
Japan
Prior art keywords
sar image
sar
analyzed
signal processing
simulated
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
JP2023556041A
Other languages
English (en)
Japanese (ja)
Other versions
JPWO2023073936A1 (https=
JPWO2023073936A5 (https=
Inventor
裕貴 山口
大地 田中
真人 戸田
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Publication of JPWO2023073936A1 publication Critical patent/JPWO2023073936A1/ja
Publication of JPWO2023073936A5 publication Critical patent/JPWO2023073936A5/ja
Application granted granted Critical
Publication of JP7670159B2 publication Critical patent/JP7670159B2/ja
Active 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
    • 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
    • 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
    • G01S13/9027—Pattern recognition for feature extraction

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)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Radar Systems Or Details Thereof (AREA)
JP2023556041A 2021-10-29 2021-10-29 信号処理システムおよび信号処理方法 Active JP7670159B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2021/040046 WO2023073936A1 (ja) 2021-10-29 2021-10-29 信号処理システムおよび信号処理方法

Publications (3)

Publication Number Publication Date
JPWO2023073936A1 JPWO2023073936A1 (https=) 2023-05-04
JPWO2023073936A5 JPWO2023073936A5 (https=) 2024-07-24
JP7670159B2 true JP7670159B2 (ja) 2025-04-30

Family

ID=86157662

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2023556041A Active JP7670159B2 (ja) 2021-10-29 2021-10-29 信号処理システムおよび信号処理方法

Country Status (4)

Country Link
US (1) US20250231294A1 (https=)
EP (1) EP4425215A4 (https=)
JP (1) JP7670159B2 (https=)
WO (1) WO2023073936A1 (https=)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008185375A (ja) 2007-01-29 2008-08-14 Mitsubishi Electric Corp Ｓａｒ画像の３ｄ形状算出装置及びｓａｒ画像の歪補正装置
JP2009187440A (ja) 2008-02-08 2009-08-20 Mitsubishi Space Software Kk 観測画像補正装置、観測画像補正プログラムおよび観測画像補正方法
JP2016057092A (ja) 2014-09-05 2016-04-21 国立研究開発法人情報通信研究機構 Ｓａｒ図からの立体地形図形成方法
CN112099006A (zh) 2020-09-15 2020-12-18 中山大学 一种合成孔径雷达相对定位误差校正方法、系统及装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2008016153A1 (ja) 2006-08-03 2009-12-24 株式会社パスコ 災害対策支援方法
US10571560B2 (en) 2015-09-21 2020-02-25 Saab Ab Detecting objects in images
GB2553284B (en) 2016-08-23 2020-02-05 Thales Holdings Uk Plc Multilook coherent change detection
IL258119B2 (en) 2018-03-14 2024-06-01 Elta Systems Ltd Coherence change detection techniques
WO2022190196A1 (ja) * 2021-03-09 2022-09-15 日本電気株式会社 変化検知装置および変化検知方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008185375A (ja) 2007-01-29 2008-08-14 Mitsubishi Electric Corp Ｓａｒ画像の３ｄ形状算出装置及びｓａｒ画像の歪補正装置
JP2009187440A (ja) 2008-02-08 2009-08-20 Mitsubishi Space Software Kk 観測画像補正装置、観測画像補正プログラムおよび観測画像補正方法
JP2016057092A (ja) 2014-09-05 2016-04-21 国立研究開発法人情報通信研究機構 Ｓａｒ図からの立体地形図形成方法
CN112099006A (zh) 2020-09-15 2020-12-18 中山大学 一种合成孔径雷达相对定位误差校正方法、系统及装置

Also Published As

Publication number Publication date
JPWO2023073936A1 (https=) 2023-05-04
EP4425215A4 (en) 2024-12-18
US20250231294A1 (en) 2025-07-17
EP4425215A1 (en) 2024-09-04
WO2023073936A1 (ja) 2023-05-04

Similar Documents

Publication Publication Date Title
Wu et al. Deep learning for the detection and phase unwrapping of mining-induced deformation in large-scale interferograms
CN101501524B (zh) 灾害对策支援方法
RU2518903C2 (ru) Идентификация и анализ устойчивых рассеивателей в последовательности изображений, полученных с помощью sar
Lu et al. Quantitative hazard and risk assessment for slow-moving landslides from Persistent Scatterer Interferometry
KR102086323B1 (ko) ＰＳＩｎＳＡＲ 기반 센티넬 위성영상의 연속성을 유지하는 자동 모니터링 서비스 제공 방법
US9207318B2 (en) Damage proxy map from interferometric synthetic aperture radar coherence
Ahn et al. Efficient automated glacier surface velocity measurement from repeat images using multi-image/multichip and null exclusion feature tracking
US11520035B2 (en) Coherence change detection techniques
Pepe et al. New advances of the extended minimum cost flow phase unwrapping algorithm for SBAS-DInSAR analysis at full spatial resolution
ElGharbawi et al. Damage detection using SAR coherence statistical analysis, application to Beirut, Lebanon
US20260023168A1 (en) Gedi canopy height correction method considering twofold influence of topography
JP7750405B2 (ja) 信号処理装置および信号処理方法
Lei et al. Detection of forest disturbance with spaceborne repeat-pass SAR interferometry
US20240193856A1 (en) Signal processing device and signal processing method
Pham et al. Sparsity optimization method for slow-moving landslides detection in satellite image time-series
Cosentino et al. Photomonitoring as a tool for monitoring landslides: a technology within everyone’s reach
JP7670159B2 (ja) 信号処理システムおよび信号処理方法
Xiong Video-based vibration analysis for structural health monitoring in civil engineering
Archambault et al. Unsupervised learning of sea surface height interpolation from multi-variate simulated satellite observations
CN116047518B (zh) 基于雷达卫星的潜在地质灾害识别方法及设备
CN111983609A (zh) 基于雷达遥感影像的湿芦苇提取方法
JP7722453B2 (ja) 画像解析装置および画像解析方法
Montagnon et al. GeoFlowNet: Fast and Accurate Subpixel Displacement Estimation From Optical Satellite Images Based on Deep Learning
Dubois et al. Automated building damage classification for the case of the 2010 Haiti earthquake
Wan et al. An Improved Sparse Bayesian Learning SAR Tomography Method and Its Application for Forest Vertical Structure Inversion

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20240416

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20240416

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: 20250318

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20250331

R150 Certificate of patent or registration of utility model

Ref document number: 7670159

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150