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GB2192061B - Sonar systems - Google Patents

Sonar systems

Info

Publication number
GB2192061B
GB2192061B GB8615768A GB8615768A GB2192061B GB 2192061 B GB2192061 B GB 2192061B GB 8615768 A GB8615768 A GB 8615768A GB 8615768 A GB8615768 A GB 8615768A GB 2192061 B GB2192061 B GB 2192061B
Authority
GB
United Kingdom
Prior art keywords
sonar systems
sonar
systems
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 - Lifetime
Application number
GB8615768A
Other versions
GB8615768D0 (en
GB2192061A (en
Inventor
Victor James Chadwick
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.)
GE Healthcare UK Ltd
Plessey Co Ltd
Original Assignee
GE Healthcare UK Ltd
Plessey Co Ltd
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 GE Healthcare UK Ltd, Plessey Co Ltd filed Critical GE Healthcare UK Ltd
Priority to GB8615768A priority Critical patent/GB2192061B/en
Publication of GB8615768D0 publication Critical patent/GB8615768D0/en
Publication of GB2192061A publication Critical patent/GB2192061A/en
Application granted granted Critical
Publication of GB2192061B publication Critical patent/GB2192061B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G10K11/34—Sound-focusing or directing, e.g. scanning using electrical steering of transducer arrays, e.g. beam steering
    • G10K11/341—Circuits therefor
    • G10K11/346—Circuits therefor using phase variation
    • 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
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/80—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using ultrasonic, sonic or infrasonic waves
    • G01S3/802—Systems for determining direction or deviation from predetermined direction
    • G01S3/808—Systems for determining direction or deviation from predetermined direction using transducers spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems
    • G01S3/8083—Systems for determining direction or deviation from predetermined direction using transducers spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems determining direction of source

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
GB8615768A 1986-06-27 1986-06-27 Sonar systems Expired - Lifetime GB2192061B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8615768A GB2192061B (en) 1986-06-27 1986-06-27 Sonar systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8615768A GB2192061B (en) 1986-06-27 1986-06-27 Sonar systems

Publications (3)

Publication Number Publication Date
GB8615768D0 GB8615768D0 (en) 1986-11-26
GB2192061A GB2192061A (en) 1987-12-31
GB2192061B true GB2192061B (en) 1990-08-01

Family

ID=10600217

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8615768A Expired - Lifetime GB2192061B (en) 1986-06-27 1986-06-27 Sonar systems

Country Status (1)

Country Link
GB (1) GB2192061B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2204431A (en) * 1987-04-25 1988-11-09 Ferranti Plc Digital signal processing and transducer array beamforming
FR2652164A1 (en) * 1989-09-15 1991-03-22 Thomson Csf METHOD FOR FORMATION OF TRACKS FOR SONAR, IN PARTICULAR FOR SONAR TRAILER.
GB9014544D0 (en) * 1990-06-29 1990-08-22 Univ Heriot Watt Methods and apparatus for acoustic holographic imaging in marine and other acoustic remote sensing equipment
FR2677132B1 (en) * 1991-05-28 1993-08-06 Thomson Csf METHOD FOR FORMING A PLURALITY OF SONAR TRACKS AND DEVICE FOR CARRYING OUT SAID METHOD.
GB9523072D0 (en) * 1995-11-10 1996-04-24 British Aerospace Improvements in sonar data processing
DK2774143T3 (en) * 2011-11-04 2018-08-06 Brueel & Kjaer Sound & Vibration Measurement As CALCULATIVE EFFECTIVE BROADBAND FILTER AND SUM ARRAY FOCUS

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4031501A (en) * 1975-02-04 1977-06-21 The United States Of America As Represented By The Secretary Of The Army Apparatus for electronically locating analog signals
GB2013446A (en) * 1978-01-27 1979-08-08 Raytheon Co Directional receiving array
US4212084A (en) * 1978-11-20 1980-07-08 The United States Of America As Represented By The Secretary Of The Navy Beam-former for FFT-based signal processor
US4274148A (en) * 1978-09-08 1981-06-16 Westinghouse Canada Limited Digital time-delay beamformer for sonar systems

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4031501A (en) * 1975-02-04 1977-06-21 The United States Of America As Represented By The Secretary Of The Army Apparatus for electronically locating analog signals
GB2013446A (en) * 1978-01-27 1979-08-08 Raytheon Co Directional receiving array
US4274148A (en) * 1978-09-08 1981-06-16 Westinghouse Canada Limited Digital time-delay beamformer for sonar systems
US4212084A (en) * 1978-11-20 1980-07-08 The United States Of America As Represented By The Secretary Of The Navy Beam-former for FFT-based signal processor

Also Published As

Publication number Publication date
GB8615768D0 (en) 1986-11-26
GB2192061A (en) 1987-12-31

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19920627