FR2497578B1 - - Google Patents

Info

Publication number
FR2497578B1
FR2497578B1 FR8100134A FR8100134A FR2497578B1 FR 2497578 B1 FR2497578 B1 FR 2497578B1 FR 8100134 A FR8100134 A FR 8100134A FR 8100134 A FR8100134 A FR 8100134A FR 2497578 B1 FR2497578 B1 FR 2497578B1
Authority
FR
France
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
FR8100134A
Other languages
French (fr)
Other versions
FR2497578A1 (fr
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.)
RECH CONST ELECTRO ET
Original Assignee
RECH CONST ELECTRO ET
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 RECH CONST ELECTRO ET filed Critical RECH CONST ELECTRO ET
Priority to FR8100134A priority Critical patent/FR2497578A1/fr
Publication of FR2497578A1 publication Critical patent/FR2497578A1/fr
Application granted granted Critical
Publication of FR2497578B1 publication Critical patent/FR2497578B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/38—Seismology; Seismic or acoustic prospecting or detecting specially adapted for water-covered areas
    • G01V1/3817—Positioning of seismic devices
    • 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
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
    • G01S1/08—Systems for determining direction or position line
    • G01S1/20—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems
    • G01S1/30—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems the synchronised signals being continuous waves or intermittent trains of continuous waves, the intermittency not being for the purpose of determining direction or position line and the transit times being compared by measuring the phase difference
    • G01S1/304—Analogous systems in which a beat frequency, obtained by heterodyning the signals, is compared in phase with a reference signal obtained by heterodyning the signals in a fixed reference point and transmitted therefrom, e.g. LORAC (long range accuracy) or TORAN systems
    • 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
    • G01S3/02—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 radio waves
    • G01S3/14—Systems for determining direction or deviation from predetermined direction
    • G01S3/46—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems
    • G01S3/48—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems the waves arriving at the antennas being continuous or intermittent and the phase difference of signals derived therefrom being measured
FR8100134A 1981-01-07 1981-01-07 Procede et dispositif d'aide a la localisation d'une flute sismique marine Granted FR2497578A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8100134A FR2497578A1 (fr) 1981-01-07 1981-01-07 Procede et dispositif d'aide a la localisation d'une flute sismique marine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8100134A FR2497578A1 (fr) 1981-01-07 1981-01-07 Procede et dispositif d'aide a la localisation d'une flute sismique marine

Publications (2)

Publication Number Publication Date
FR2497578A1 FR2497578A1 (fr) 1982-07-09
FR2497578B1 true FR2497578B1 (pt) 1985-03-08

Family

ID=9253918

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8100134A Granted FR2497578A1 (fr) 1981-01-07 1981-01-07 Procede et dispositif d'aide a la localisation d'une flute sismique marine

Country Status (1)

Country Link
FR (1) FR2497578A1 (pt)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4661935A (en) * 1984-09-17 1987-04-28 Phillips Petroleum Company Seismic data processing

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2971189A (en) * 1957-03-22 1961-02-07 Hastings Raydist Inc Radio system
US3697997A (en) * 1970-10-13 1972-10-10 Westinghouse Electric Corp Interferometer and angle encoding navigation system
US3816834A (en) * 1972-10-27 1974-06-11 Martin Marietta Corp Electronic direction finder
FR2218571B1 (pt) * 1973-02-21 1976-05-14 Erap
US4068208A (en) * 1975-07-14 1978-01-10 Texas Instruments Incorporated Marine streamer position determination system
US4231111A (en) * 1978-03-13 1980-10-28 Mobil Oil Corporation Marine cable location system

Also Published As

Publication number Publication date
FR2497578A1 (fr) 1982-07-09

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Legal Events

Date Code Title Description
RE Withdrawal of published application