NL287672A - - Google Patents

Info

Publication number
NL287672A
NL287672A NL287672DA NL287672A NL 287672 A NL287672 A NL 287672A NL 287672D A NL287672D A NL 287672DA NL 287672 A NL287672 A NL 287672A
Authority
NL
Netherlands
Application number
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.)
Publication of NL287672A publication Critical patent/NL287672A/xx

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S3/00Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/80Direction-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
    • G01S3/802Systems for determining direction or deviation from predetermined direction
    • G01S3/805Systems 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
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S3/00Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/80Direction-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
    • G01S3/802Systems for determining direction or deviation from predetermined direction
    • G01S3/808Systems 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
    • G01S3/8083Systems 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
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S7/00Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/003Transmission of data between radar, sonar or lidar systems and remote stations
NL287672D 1962-01-12 NL287672A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR884629A FR1381217A (fr) 1962-01-12 1962-01-12 Système d'écoute à grilles

Publications (1)

Publication Number Publication Date
NL287672A true NL287672A (xx)

Family

ID=8770334

Family Applications (1)

Application Number Title Priority Date Filing Date
NL287672D NL287672A (xx) 1962-01-12

Country Status (4)

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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2049666A5 (xx) * 1969-06-16 1971-03-26 Cit Alcatel
FR2050619A5 (xx) * 1969-06-18 1971-04-02 Cit Alcatel
CA1135826A (en) * 1978-09-08 1982-11-16 Adrian Van't Hullenaar Digital time-delay beamformer for sonar systems

Also Published As

Publication number Publication date
DE1191721B (de) 1965-04-22
FR1381217A (fr) 1964-12-14
GB1025466A (en) 1966-04-06

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