GB2181547B - Acoustic direction detector - Google Patents

Acoustic direction detector

Info

Publication number
GB2181547B
GB2181547B GB8525296A GB8525296A GB2181547B GB 2181547 B GB2181547 B GB 2181547B GB 8525296 A GB8525296 A GB 8525296A GB 8525296 A GB8525296 A GB 8525296A GB 2181547 B GB2181547 B GB 2181547B
Authority
GB
United Kingdom
Prior art keywords
direction detector
acoustic direction
acoustic
detector
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
GB8525296A
Other versions
GB2181547A (en
Inventor
John Arthur Glasgow
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.)
Allard Way Holdings Ltd
Original Assignee
GEC Avionics 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 GEC Avionics Ltd filed Critical GEC Avionics Ltd
Priority to GB8525296A priority Critical patent/GB2181547B/en
Publication of GB2181547A publication Critical patent/GB2181547A/en
Application granted granted Critical
Publication of GB2181547B publication Critical patent/GB2181547B/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
    • G01S3/808—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)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
GB8525296A 1985-10-14 1985-10-14 Acoustic direction detector Expired GB2181547B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8525296A GB2181547B (en) 1985-10-14 1985-10-14 Acoustic direction detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8525296A GB2181547B (en) 1985-10-14 1985-10-14 Acoustic direction detector

Publications (2)

Publication Number Publication Date
GB2181547A GB2181547A (en) 1987-04-23
GB2181547B true GB2181547B (en) 1989-03-30

Family

ID=10586637

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8525296A Expired GB2181547B (en) 1985-10-14 1985-10-14 Acoustic direction detector

Country Status (1)

Country Link
GB (1) GB2181547B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4980871A (en) * 1989-08-22 1990-12-25 Visionary Products, Inc. Ultrasonic tracking system
US5231483A (en) * 1990-09-05 1993-07-27 Visionary Products, Inc. Smart tracking system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0116777A2 (en) * 1982-12-22 1984-08-29 The Marconi Company Limited Acoustic direction finding systems

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0116777A2 (en) * 1982-12-22 1984-08-29 The Marconi Company Limited Acoustic direction finding systems
GB2140558A (en) * 1982-12-22 1984-11-28 Mcmichael Ltd Acoustic direction finding systems

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Note: GB A 2140558 and E *

Also Published As

Publication number Publication date
GB2181547A (en) 1987-04-23

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Legal Events

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