FR1559030A - - Google Patents

Info

Publication number
FR1559030A
FR1559030A FR134547A FR1559030DA FR1559030A FR 1559030 A FR1559030 A FR 1559030A FR 134547 A FR134547 A FR 134547A FR 1559030D A FR1559030D A FR 1559030DA FR 1559030 A FR1559030 A FR 1559030A
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
FR134547A
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 filed Critical
Application granted granted Critical
Publication of FR1559030A publication Critical patent/FR1559030A/fr
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
    • G01S3/02—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
    • G01S3/38—Systems for determining direction or deviation from predetermined direction using adjustment of real or effective orientation of directivity characteristic of an antenna or an antenna system to give a desired condition of signal derived from that antenna or antenna system, e.g. to give a maximum or minimum signal
    • G01S3/42—Systems for determining direction or deviation from predetermined direction using adjustment of real or effective orientation of directivity characteristic of an antenna or an antenna system to give a desired condition of signal derived from that antenna or antenna system, e.g. to give a maximum or minimum signal the desired condition being maintained automatically
    • 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
FR134547A 1968-01-02 1968-01-02 Expired FR1559030A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR134547 1968-01-02

Publications (1)

Publication Number Publication Date
FR1559030A true FR1559030A (fr) 1969-03-07

Family

ID=8644016

Family Applications (1)

Application Number Title Priority Date Filing Date
FR134547A Expired FR1559030A (fr) 1968-01-02 1968-01-02

Country Status (3)

Country Link
US (1) US3588900A (fr)
FR (1) FR1559030A (fr)
GB (1) GB1260670A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3719950A (en) * 1971-11-03 1973-03-06 A Bukhman Antenna system for vhf and uhf radio direction finders
US3754265A (en) * 1971-11-26 1973-08-21 American Electronic Lab Signal processing means and method
GB2095497B (en) * 1981-03-24 1984-08-15 Racal Communications Equip Improvements in and relating to direction finding
GB9414256D0 (en) * 1994-07-14 1994-08-31 Duffy Brian Range detection

Also Published As

Publication number Publication date
DE1900140A1 (de) 1969-09-04
DE1900140B2 (de) 1973-02-22
GB1260670A (en) 1972-01-19
US3588900A (en) 1971-06-28

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Legal Events

Date Code Title Description
ST Notification of lapse