GB1025466A - Improvements in sound source locating systems - Google Patents

Improvements in sound source locating systems

Info

Publication number
GB1025466A
GB1025466A GB76763A GB76763A GB1025466A GB 1025466 A GB1025466 A GB 1025466A GB 76763 A GB76763 A GB 76763A GB 76763 A GB76763 A GB 76763A GB 1025466 A GB1025466 A GB 1025466A
Authority
GB
United Kingdom
Prior art keywords
clipper
hundred
circuits
signal
thirty
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
Application number
GB76763A
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
CSF Compagnie Generale de Telegraphie sans Fil 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
Application filed by CSF Compagnie Generale de Telegraphie sans Fil SA filed Critical CSF Compagnie Generale de Telegraphie sans Fil SA
Publication of GB1025466A publication Critical patent/GB1025466A/en
Expired 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
    • 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
    • G01S3/805—Systems for determining direction or deviation from predetermined direction using adjustment of real or effective orientation of directivity characteristics of a transducer or transducer system to give a desired condition of signal derived from that transducer or transducer system, e.g. to give a maximum or minimum signal
    • 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
    • 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/003—Transmission of data between radar, sonar or lidar systems and remote stations

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

1,025,466. Determining direction acoustically. CSF-COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Jan. 7, 1963 [Jan. 12, 1962], No. 767/63. Heading H4D. A system for determining the direction of a sound source, e.g. a submarine, by means of a plurality of hydrophones mounted on the hull of a ship and making use of the different times of arrival of a sound wave at the various hydrophones comprises, as shown, thirty-six hydrophones H 1 ... H 36 producing signals clipped at upper and lower levels by clippers E 1 ... E 36 , the output of each clipper being connected to one hundred AND-circuits. These AND-circuits are each designated by two numerals, e.g. the AND-circuits associated with clipper E 1 have designations 1, 1 ... 1, 100 and those associated with clipper E 36 have designations 36, 1 ... 36, 100. The AND-circuits each have a further input d 1 ... d 100 connected, respectively, to pulse trains t 1 ... t 100 derived from a clock O, D comprising a generator O and a frequency divider D. These trains have a recurrence frequency of 1 kc.s and are stepped sequentially with respect to one another by 10 Ás. Each AND-circuit produces a signal in its output a when a signal from its clipper E coincides with a signal from the clock O, D. One hundred and twenty bearing, directions are chosen covering 360 degrees in 3-degree intervals and for each of these directions the output a of a particular AND-circuit associated with each hydrophone H will produce a signal. The thirty-six outputs a associated with each bearing direction are connected to one hundred and twenty counters C 1 ... C 120 through junction boxes G a1 ... G a120 . Thus a sound source located on any one of the one hundred and twenty directions will cause the counter C associated with that direction to count up to thirty-six. An integrator F 1 ... F 120 associated with each counter C 1 ... C 120 sums up the pulses for a given time interval, this summation being supplied to a threshold device S 1 ... S 120 such that when the threshold is exceeded the bearing direction is marked on a graph.
GB76763A 1962-01-12 1963-01-07 Improvements in sound source locating systems Expired GB1025466A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR884629A FR1381217A (en) 1962-01-12 1962-01-12 Grid listening system

Publications (1)

Publication Number Publication Date
GB1025466A true GB1025466A (en) 1966-04-06

Family

ID=8770334

Family Applications (1)

Application Number Title Priority Date Filing Date
GB76763A Expired GB1025466A (en) 1962-01-12 1963-01-07 Improvements in sound source locating systems

Country Status (4)

Country Link
DE (1) DE1191721B (en)
FR (1) FR1381217A (en)
GB (1) GB1025466A (en)
NL (1) NL287672A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3691514A (en) * 1969-06-16 1972-09-12 Alsacienne De Construction Ato Method and apparatus for determining the diretion of propagation of a plane wave
GB2029574A (en) * 1978-09-08 1980-03-19 Westinghouse Canada Ltd Digital time-delay beam former for sonar systems

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2050619A5 (en) * 1969-06-18 1971-04-02 Cit Alcatel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3691514A (en) * 1969-06-16 1972-09-12 Alsacienne De Construction Ato Method and apparatus for determining the diretion of propagation of a plane wave
GB2029574A (en) * 1978-09-08 1980-03-19 Westinghouse Canada Ltd Digital time-delay beam former for sonar systems
GB2029574B (en) * 1978-09-08 1983-05-18 Westinghouse Canada Ltd Digital time-delay beam former for sonar systems

Also Published As

Publication number Publication date
DE1191721B (en) 1965-04-22
NL287672A (en)
FR1381217A (en) 1964-12-14

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