AU7964391A - Low-frequency signal acoustic detection method - Google Patents

Low-frequency signal acoustic detection method

Info

Publication number
AU7964391A
AU7964391A AU79643/91A AU7964391A AU7964391A AU 7964391 A AU7964391 A AU 7964391A AU 79643/91 A AU79643/91 A AU 79643/91A AU 7964391 A AU7964391 A AU 7964391A AU 7964391 A AU7964391 A AU 7964391A
Authority
AU
Australia
Prior art keywords
low
detection method
frequency signal
acoustic detection
signal acoustic
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.)
Abandoned
Application number
AU79643/91A
Inventor
Michel Lagier
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
Thomson CSF 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 Thomson CSF SA filed Critical Thomson CSF SA
Publication of AU7964391A publication Critical patent/AU7964391A/en
Abandoned 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
    • G01S3/803—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived from receiving transducers or transducer systems having differently-oriented directivity characteristics
    • 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
    • G01S3/86—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 with means for eliminating undesired waves, e.g. disturbing noises
AU79643/91A 1990-06-15 1991-06-04 Low-frequency signal acoustic detection method Abandoned AU7964391A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9007512A FR2663489B1 (en) 1990-06-15 1990-06-15 METHOD FOR ACOUSTIC DETECTION OF LOW FREQUENCY SIGNALS.
FR9007512 1990-06-15

Publications (1)

Publication Number Publication Date
AU7964391A true AU7964391A (en) 1992-01-07

Family

ID=9397670

Family Applications (1)

Application Number Title Priority Date Filing Date
AU79643/91A Abandoned AU7964391A (en) 1990-06-15 1991-06-04 Low-frequency signal acoustic detection method

Country Status (3)

Country Link
AU (1) AU7964391A (en)
FR (1) FR2663489B1 (en)
WO (1) WO1991019996A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2533323C1 (en) * 2013-03-21 2014-11-20 Российская Федерация, от имени которой выступает Министерство промышленности и торговли Российской Федерации (Минпромторг России) Vector receiving device
RU2569201C1 (en) * 2014-06-27 2015-11-20 Российская Федерация, от имени которой выступает Министерство промышленности и торговли Российской Федерации (Минпромторг России) Combined hydroacoustic receiver

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2452115B1 (en) * 1979-03-23 1985-10-18 Sperry Corp ULTRASONIC RADAR DETECTION ASSEMBLY
US4283767A (en) * 1979-05-03 1981-08-11 Raytheon Company Multiple correlator reference processor
JPS57124267A (en) * 1981-01-26 1982-08-03 Oki Electric Ind Co Ltd Elimination system for noise of sonar
JPS59174723A (en) * 1983-03-25 1984-10-03 Fujitsu Ltd Sound monitoring device
FR2615682B1 (en) * 1987-05-19 1989-07-13 Thomson Csf GEOPHONE COMPRISING A SENSITIVE ELEMENT IN PIEZOELECTRIC POLYMER

Also Published As

Publication number Publication date
WO1991019996A1 (en) 1991-12-26
FR2663489B1 (en) 1992-09-11
FR2663489A1 (en) 1991-12-20

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