FR3129217B1 - Détection d'objets améliorée par une antenne synthétique - Google Patents

Détection d'objets améliorée par une antenne synthétique Download PDF

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Publication number
FR3129217B1
FR3129217B1 FR2112194A FR2112194A FR3129217B1 FR 3129217 B1 FR3129217 B1 FR 3129217B1 FR 2112194 A FR2112194 A FR 2112194A FR 2112194 A FR2112194 A FR 2112194A FR 3129217 B1 FR3129217 B1 FR 3129217B1
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France
Prior art keywords
synthetic image
series
distances
distance
focus
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
FR2112194A
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English (en)
Other versions
FR3129217A1 (fr
Inventor
Gall Yann Le
Andreas Arnold
Mathieu Simon
Nicolas Burlet
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.)
Thales SA
Original Assignee
Thales SA
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 to FR2112194A priority Critical patent/FR3129217B1/fr
Application filed by Thales SA filed Critical Thales SA
Priority to JP2024529578A priority patent/JP2024544585A/ja
Priority to AU2022389306A priority patent/AU2022389306A1/en
Priority to EP22817726.7A priority patent/EP4433846A1/fr
Priority to US18/701,597 priority patent/US20250130328A1/en
Priority to CA3237564A priority patent/CA3237564A1/fr
Priority to PCT/EP2022/081984 priority patent/WO2023088895A1/fr
Publication of FR3129217A1 publication Critical patent/FR3129217A1/fr
Application granted granted Critical
Publication of FR3129217B1 publication Critical patent/FR3129217B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • G01S13/9019—Auto-focussing of the SAR signals
    • 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
    • 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
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/04—Systems determining presence of a target
    • 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
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
    • G01S15/8902—Side-looking sonar
    • G01S15/8904—Side-looking sonar using synthetic aperture techniques

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

L’invention concerne une méthode mise en œuvre par ordinateur comprenant : la réception d’une série de mesures de distances générées, depuis une pluralité de positions différentes respectivement, par un système de détection fonctionnant par : émission d’une onde ; réception d’ondes réfléchies par l’environnement ; détermination des distances, par calcul de différences entre le temps d’émission de l’onde et les temps de réception des ondes réfléchies ; la génération (420), à partir de ladite série de mesures de distance, d’une image synthétique représentant les distances de l’environnement par rapport à une position de référence ; pour chaque distance de focalisation d’une pluralité de distances de focalisation: la génération, à partir de ladite série de mesures de distance ou de ladite image synthétique, d’une image synthétique focalisée à ladite distance de focalisation, par l’application d’une compensation des effets de pénombre ; une détection de présence d’un objet dans ladite image synthétique focalisée. Figure pour l’abrégé : Fig. 4a.
FR2112194A 2021-11-18 2021-11-18 Détection d'objets améliorée par une antenne synthétique Active FR3129217B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR2112194A FR3129217B1 (fr) 2021-11-18 2021-11-18 Détection d'objets améliorée par une antenne synthétique
AU2022389306A AU2022389306A1 (en) 2021-11-18 2022-11-15 Improved detection of objects with a synthetic antenna
EP22817726.7A EP4433846A1 (fr) 2021-11-18 2022-11-15 Détection d'objets améliorée par une antenne synthétique
US18/701,597 US20250130328A1 (en) 2021-11-18 2022-11-15 Detection of objects with a synthetic antenna
JP2024529578A JP2024544585A (ja) 2021-11-18 2022-11-15 合成アンテナによる物体探知の向上
CA3237564A CA3237564A1 (fr) 2021-11-18 2022-11-15 Detection d'objets amelioree par une antenne synthetique
PCT/EP2022/081984 WO2023088895A1 (fr) 2021-11-18 2022-11-15 Détection d'objets améliorée par une antenne synthétique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2112194A FR3129217B1 (fr) 2021-11-18 2021-11-18 Détection d'objets améliorée par une antenne synthétique
FR2112194 2021-11-18

Publications (2)

Publication Number Publication Date
FR3129217A1 FR3129217A1 (fr) 2023-05-19
FR3129217B1 true FR3129217B1 (fr) 2024-03-01

Family

ID=80787045

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2112194A Active FR3129217B1 (fr) 2021-11-18 2021-11-18 Détection d'objets améliorée par une antenne synthétique

Country Status (7)

Country Link
US (1) US20250130328A1 (fr)
EP (1) EP4433846A1 (fr)
JP (1) JP2024544585A (fr)
AU (1) AU2022389306A1 (fr)
CA (1) CA3237564A1 (fr)
FR (1) FR3129217B1 (fr)
WO (1) WO2023088895A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119511249B (zh) * 2025-01-17 2025-04-11 海底鹰深海科技股份有限公司 合成孔径声纳成像方法的一维误差分析方法、系统和装置

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4204281A (en) * 1959-03-24 1980-05-20 Julius Hagemann Signal processing system for underwater transducer
US3950723A (en) * 1974-02-21 1976-04-13 Westinghouse Electric Corporation Sonar apparatus
FR2292978A1 (fr) * 1974-11-28 1976-06-25 Anvar Perfectionnements aux dispositifs de sondage par ultra-sons
US5181254A (en) * 1990-12-14 1993-01-19 Westinghouse Electric Corp. Method for automatically identifying targets in sonar images
US5214744A (en) * 1990-12-14 1993-05-25 Westinghouse Electric Corp. Method and apparatus for automatically identifying targets in sonar images
US5412618A (en) * 1994-04-07 1995-05-02 Westinghouse Electric Corporation Spotlight-mode synthetic aperture side-look sonar
FR2738918B1 (fr) * 1995-09-19 1997-12-05 Thomson Csf Procede d'autofocalisation pour sonar a antenne synthetique
GB0606489D0 (en) * 2006-03-31 2006-05-10 Qinetiq Ltd System and method for processing imagery from synthetic aperture systems
FR2901364B1 (fr) * 2006-05-16 2008-08-22 Ixsea Soc Par Actions Simplifi Systeme d'imagerie sonar a ouverture synthetique
WO2008008774A2 (fr) * 2006-07-10 2008-01-17 The Board Of Trustees Of The University Of Illinois microscopie à ouverture synthétique interférométrique
US20070161904A1 (en) * 2006-11-10 2007-07-12 Penrith Corporation Transducer array imaging system
US7990804B2 (en) * 2006-12-01 2011-08-02 The United States Of America As Represented By The Secretary Of The Navy Method and system for real-time automated change detection and classification for images
CA3044970C (fr) * 2011-05-06 2021-10-19 Hadal, Inc. Systemes et procedes pour un sonar a synthese d'ouverture
US10349917B2 (en) * 2014-06-11 2019-07-16 The Johns Hopkins University Synthetic aperture ultrasound system
US11860640B2 (en) * 2018-03-29 2024-01-02 Sony Corporation Signal processing device and signal processing method, program, and mobile body
WO2020190602A1 (fr) * 2019-03-18 2020-09-24 Corning Incorporated Dispositif d'imagerie amélioré utilisant une lentille liquide, processeur de signal numérique intégré et logiciel
US11257197B2 (en) * 2020-03-31 2022-02-22 Woven Planet North America, Inc. Mapping pipeline optimization using aggregated overhead view reconstruction
US11977392B2 (en) * 2020-05-11 2024-05-07 Mobile Industrial Robots Inc. Identifying elements in an environment
WO2022040366A1 (fr) * 2020-08-18 2022-02-24 IntelliShot Holdings, Inc. Appareil de détection et de dissuasion de menace automatisé

Also Published As

Publication number Publication date
WO2023088895A1 (fr) 2023-05-25
AU2022389306A1 (en) 2024-05-16
EP4433846A1 (fr) 2024-09-25
JP2024544585A (ja) 2024-12-03
CA3237564A1 (fr) 2023-05-25
US20250130328A1 (en) 2025-04-24
FR3129217A1 (fr) 2023-05-19

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