FR838506A - Radio Direction Finder Systems - Google Patents

Radio Direction Finder Systems

Info

Publication number
FR838506A
FR838506A FR838506DA FR838506A FR 838506 A FR838506 A FR 838506A FR 838506D A FR838506D A FR 838506DA FR 838506 A FR838506 A FR 838506A
Authority
FR
France
Prior art keywords
direction finder
radio direction
finder systems
systems
radio
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)
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
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR838506A publication Critical patent/FR838506A/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
    • G01S3/143—Systems for determining direction or deviation from predetermined direction by vectorial combination of signals derived from differently oriented antennae

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Superheterodyne Receivers (AREA)
FR838506D 1937-05-28 1938-05-27 Radio Direction Finder Systems Expired FR838506A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB207371X 1937-05-28

Publications (1)

Publication Number Publication Date
FR838506A true FR838506A (en) 1939-03-08

Family

ID=10150795

Family Applications (1)

Application Number Title Priority Date Filing Date
FR838506D Expired FR838506A (en) 1937-05-28 1938-05-27 Radio Direction Finder Systems

Country Status (5)

Country Link
US (1) US2213874A (en)
CH (1) CH207371A (en)
FR (1) FR838506A (en)
GB (1) GB496239A (en)
NL (1) NL50149C (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2475412A (en) * 1949-07-05 Torcheux
US2415954A (en) * 1942-02-28 1947-02-18 Rca Corp Radio direction finding
US2415955A (en) * 1942-02-28 1947-02-18 Rca Corp Radio direction finding
US2720647A (en) * 1942-04-30 1955-10-11 Sperry Rand Corp Radio range indicating system
US2422073A (en) * 1942-07-30 1947-06-10 Rca Corp Radio direction finder
US2666192A (en) * 1944-07-27 1954-01-12 Frederick V Hunt Apparatus for determining the direction of underwater targets
US2642473A (en) * 1944-12-07 1953-06-16 Bell Telephone Labor Inc Wave translating system
US2524768A (en) * 1944-12-16 1950-10-10 Standard Telephones Cables Ltd Radio direction finder
US2485642A (en) * 1945-03-05 1949-10-25 Standard Telephones Cables Ltd Electronic switching system
US2444439A (en) * 1945-03-26 1948-07-06 Standard Telephones Cables Ltd Beacon receiver means
US2449553A (en) * 1945-09-14 1948-09-21 Paul G Hansel Radio compass
US2913721A (en) * 1953-06-20 1959-11-17 Csf Radio direction finding system
DE965501C (en) * 1955-12-01 1957-06-13 Lorenz C Ag DF arrangement using more than two star-shaped crossed antenna systems, each on a base
US6963301B2 (en) * 2002-08-19 2005-11-08 G-Track Corporation System and method for near-field electromagnetic ranging
US7414571B2 (en) * 2002-08-19 2008-08-19 Q-Track Corporation Low frequency asset tag tracking system and method
US7307595B2 (en) * 2004-12-21 2007-12-11 Q-Track Corporation Near field location system and method
US7298314B2 (en) * 2002-08-19 2007-11-20 Q-Track Corporation Near field electromagnetic positioning system and method
US8774837B2 (en) 2011-04-30 2014-07-08 John Anthony Wright Methods, systems and apparatuses of emergency vehicle locating and the disruption thereof
CN107037394B (en) * 2016-02-03 2020-06-23 希姆通信息技术（上海）有限公司 Direction positioning equipment and method

Also Published As

Publication number Publication date
US2213874A (en) 1940-09-03
NL50149C (en)
CH207371A (en) 1939-10-31
GB496239A (en) 1938-11-28

Similar Documents

Publication Publication Date Title
FR836633A (en) Antenna systems
FR849764A (en) Television receiver systems
FR838506A (en) Radio Direction Finder Systems
FR864920A (en) Aerial radio systems
FR843159A (en) Transmission systems
FR832598A (en) Electrical communications systems
FR867462A (en) Aerial radio systems
FR839582A (en) Amplifier systems
FR847855A (en) Improvements to aerial systems
FR839635A (en) Radio-electric systems
FR867451A (en) Radio communications systems
FR833743A (en) Radio transmission systems
CH207372A (en) Direction finder.
FR863016A (en) Television receiver systems
FR847965A (en) TV systems
FR867847A (en) Directive radio systems
FR839911A (en) Directional transmitting or receiving systems
FR867452A (en) Directive radio systems
CH207221A (en) Impulse direction finder.
FR867359A (en) Radio communications systems
FR839203A (en) Amplifier systems
CH232394A (en) Radio direction finder.
FR836097A (en) Mobile guidance systems
FR847620A (en) Telegraph systems
FR836761A (en) Radio guidance systems