FR2368069A1 - Systeme de visualisation sous-marine - Google Patents

Systeme de visualisation sous-marine

Info

Publication number
FR2368069A1
FR2368069A1 FR7729273A FR7729273A FR2368069A1 FR 2368069 A1 FR2368069 A1 FR 2368069A1 FR 7729273 A FR7729273 A FR 7729273A FR 7729273 A FR7729273 A FR 7729273A FR 2368069 A1 FR2368069 A1 FR 2368069A1
Authority
FR
France
Prior art keywords
transducers
hydrophone
hydrophones
visualization system
transmitting transducer
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.)
Granted
Application number
FR7729273A
Other languages
English (en)
Other versions
FR2368069B1 (fr
Inventor
Patrick Norman Keating
Roger Fred Koppelman
Takeo Sawatari
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.)
Bendix Corp
Original Assignee
Bendix 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 Bendix Corp filed Critical Bendix Corp
Publication of FR2368069A1 publication Critical patent/FR2368069A1/fr
Application granted granted Critical
Publication of FR2368069B1 publication Critical patent/FR2368069B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H3/00—Holographic processes or apparatus using ultrasonic, sonic or infrasonic waves for obtaining holograms; Processes or apparatus for obtaining an optical image from them
    • 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
    • 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
    • G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
    • G01S15/895—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques characterised by the transmitted frequency spectrum
    • G01S15/8952—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques characterised by the transmitted frequency spectrum using discrete, multiple frequencies
    • 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
    • G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
    • G01S15/8977—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using special techniques for image reconstruction, e.g. FFT, geometrical transformations, spatial deconvolution, time deconvolution

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Holo Graphy (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)

Abstract

Système de visualisation sous-marine à moyen transducteur d'émission et à réseau d'hydrophones de réception. Système dans lequel le moyen transducteur d'émission comprend plusieurs transducteurs espacés les uns des autres et emettant chacun un signal de fréquence différente, des moyens homodynes sont prévus pour comparer chaque signal d'entrée d'hydrophone à des signaux de référence en sinus et cosinus pour chacune des fréquences transmises afin de séparer les contributions en fréquence de chaque hydrophone, et un moyen de reconstitution d'image est prévu qui procure une modulation spatiale tenant compte de la séparation spatiale des transducteurs et combine les jeux de données résultants pour former un jeu de données synthétisé dont la résolution est en rapport avec un réseau dont le nombre d'hydrophones est celui du réseau réel de réception multiplié par le nombre de transducteurs du moyen transducteur d'émission.
FR7729273A 1976-10-18 1977-09-29 Systeme de visualisation sous-marine Granted FR2368069A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/733,509 US4119940A (en) 1976-10-18 1976-10-18 Underwater viewing system

Publications (2)

Publication Number Publication Date
FR2368069A1 true FR2368069A1 (fr) 1978-05-12
FR2368069B1 FR2368069B1 (fr) 1980-05-16

Family

ID=24947908

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7729273A Granted FR2368069A1 (fr) 1976-10-18 1977-09-29 Systeme de visualisation sous-marine

Country Status (6)

Country Link
US (1) US4119940A (fr)
JP (1) JPS5350862A (fr)
DE (1) DE2745510A1 (fr)
FR (1) FR2368069A1 (fr)
GB (1) GB1542164A (fr)
NO (1) NO147050C (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0036794A1 (fr) * 1980-03-21 1981-09-30 Thomson-Csf Système d'imagerie acoustique
EP0050060A1 (fr) * 1980-10-10 1982-04-21 Thomson-Csf Système d'imagerie à émissions multiples et simultanées
FR2493528A1 (fr) * 1980-11-04 1982-05-07 Thomson Csf Systeme de detection multivoies a emission diversifiee
FR2648231A1 (fr) * 1989-06-13 1990-12-14 Alais Pierre Procede et dispositif d'imagerie ultra sonore d'objets en milieu liquide

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2465233B1 (fr) * 1979-09-10 1985-11-08 Plessey Overseas Appareil de determination de gisement a radar ultrasonore
FR2478822A1 (fr) * 1980-03-18 1981-09-25 Thomson Csf Systeme de detection active au moyen d'emissions multiples simultanees
US4415996A (en) * 1981-06-09 1983-11-15 The United States Of America As Represented By The Secretary Of The Navy Nonwavelength-limited holographic sound field reconstruction
US4760398A (en) * 1981-09-30 1988-07-26 The Boeing Company Methods and apparatus for determining the differential sideband power of radar signals
JPS61110074A (ja) * 1984-11-02 1986-05-28 Hitachi Ltd 水中物体探知方式
JPS6220414U (fr) * 1985-07-19 1987-02-06
US4855961A (en) * 1986-07-31 1989-08-08 Woods Hole Oceanographic Institute Imaging apparatus
US4829306A (en) * 1987-08-31 1989-05-09 Norges Teknisk-Naturvitenskapelige Forskningsråd System for detection of objects with given, known characteristics against a background
US4847817A (en) * 1987-12-31 1989-07-11 The United States Of America As Represented By The Secretary Of The Navy Broadband sonar signal processor and target recognition system
DE3828151A1 (de) * 1988-08-19 1990-02-22 Honeywell Elac Nautik Gmbh Unterwasser-peilgeraet
JP2772647B2 (ja) 1988-10-25 1998-07-02 三井造船株式会社 超音波映像装置
FR2643464B1 (fr) * 1989-02-17 1991-06-14 Thomson Csf Procede pour augmenter la cadence image d'un sonar et sonar pour la mise en oeuvre de ce procede
US5150336A (en) * 1991-09-03 1992-09-22 The United States Of America As Represented By The Secretary Of The Navy Frequency dispersive transmitting array
US7242638B2 (en) * 2004-11-24 2007-07-10 Raytheon Company Method and system for synthetic aperture sonar
US7133326B2 (en) * 2004-11-24 2006-11-07 Raytheon Company Method and system for synthetic aperture sonar
US7046582B1 (en) 2004-11-24 2006-05-16 Raytheon Company Method and system for synthetic aperture sonar
EP1952176A1 (fr) * 2005-10-28 2008-08-06 The Brigham and Women's Hospital, Inc. Imagerie ultrasonore
US20080144441A1 (en) * 2006-07-11 2008-06-19 Colangelo Frank G Sonar device
US8437979B2 (en) * 2007-01-20 2013-05-07 Kcf Technologies, Inc. Smart tether system for underwater navigation and cable shape measurement
EP3335391B1 (fr) * 2015-08-11 2020-03-11 Telefonaktiebolaget LM Ericsson (PUBL) Étalonnage de récepteur homodyne
JP6761893B2 (ja) 2017-03-10 2020-09-30 古野電気株式会社 超音波探知装置及び超音波探知方法
US11579288B2 (en) * 2018-04-14 2023-02-14 Coda Octopus Group Inc. Pseudo random frequency sonar ping generation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3719922A (en) * 1971-06-24 1973-03-06 L Lopes Digital camera
US3771116A (en) * 1972-01-12 1973-11-06 Bendix Corp Method and apparatus for imaging stationary and moving objects
US3942150A (en) * 1974-08-12 1976-03-02 The United States Of America As Represented By The Secretary Of The Navy Correction of spatial non-uniformities in sonar, radar, and holographic acoustic imaging systems

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0036794A1 (fr) * 1980-03-21 1981-09-30 Thomson-Csf Système d'imagerie acoustique
EP0050060A1 (fr) * 1980-10-10 1982-04-21 Thomson-Csf Système d'imagerie à émissions multiples et simultanées
FR2493528A1 (fr) * 1980-11-04 1982-05-07 Thomson Csf Systeme de detection multivoies a emission diversifiee
EP0053048A1 (fr) * 1980-11-04 1982-06-02 Thomson-Csf Système de détection multivoies à émission diversifiée
FR2648231A1 (fr) * 1989-06-13 1990-12-14 Alais Pierre Procede et dispositif d'imagerie ultra sonore d'objets en milieu liquide

Also Published As

Publication number Publication date
DE2745510A1 (de) 1978-04-20
FR2368069B1 (fr) 1980-05-16
NO773552L (no) 1978-04-19
US4119940A (en) 1978-10-10
NO147050B (no) 1982-10-11
GB1542164A (en) 1979-03-14
NO147050C (no) 1983-01-19
JPS5350862A (en) 1978-05-09
JPS6218915B2 (fr) 1987-04-24

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Legal Events

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