FR864930A - Improvements to direction finders - Google Patents

Improvements to direction finders

Info

Publication number
FR864930A
FR864930A FR864930DA FR864930A FR 864930 A FR864930 A FR 864930A FR 864930D A FR864930D A FR 864930DA FR 864930 A FR864930 A FR 864930A
Authority
FR
France
Prior art keywords
direction finders
finders
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
Other languages
French (fr)
Inventor
Joseph Plebanski
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 FR864930A publication Critical patent/FR864930A/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
    • G01S3/02—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
FR864930D 1939-04-26 1940-04-16 Improvements to direction finders Expired FR864930A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL864930X 1939-04-26

Publications (1)

Publication Number Publication Date
FR864930A true FR864930A (en) 1941-05-08

Family

ID=19936767

Family Applications (1)

Application Number Title Priority Date Filing Date
FR864930D Expired FR864930A (en) 1939-04-26 1940-04-16 Improvements to direction finders

Country Status (1)

Country Link
FR (1) FR864930A (en)

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