GB991365A - Radio direction finding system - Google Patents

Radio direction finding system

Info

Publication number
GB991365A
GB991365A GB31222/61A GB3122261A GB991365A GB 991365 A GB991365 A GB 991365A GB 31222/61 A GB31222/61 A GB 31222/61A GB 3122261 A GB3122261 A GB 3122261A GB 991365 A GB991365 A GB 991365A
Authority
GB
United Kingdom
Prior art keywords
signal
detector
antenna system
frequency
combining circuit
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
GB31222/61A
Other languages
English (en)
Inventor
Richard Francis Cleaver
Francis Geoffrey Cockerill
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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
Priority to BE621855D priority Critical patent/BE621855A/xx
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB31222/61A priority patent/GB991365A/en
Priority to GB31549/61A priority patent/GB991366A/en
Priority to US208986A priority patent/US3149334A/en
Priority to US209017A priority patent/US3149335A/en
Priority to CH946762A priority patent/CH417702A/de
Priority to CH1019962A priority patent/CH420288A/de
Priority to FR908088A priority patent/FR1340251A/fr
Priority to FR908098A priority patent/FR82292E/fr
Publication of GB991365A publication Critical patent/GB991365A/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
    • G01S3/52—Systems for determining direction or deviation from predetermined direction using a receiving antenna moving, or appearing to move, in a cyclic path to produce a Doppler variation of frequency of the received signal

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
GB31222/61A 1961-08-30 1961-08-30 Radio direction finding system Expired GB991365A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
BE621855D BE621855A (US20100223739A1-20100909-C00005.png) 1961-08-30
GB31222/61A GB991365A (en) 1961-08-30 1961-08-30 Radio direction finding system
GB31549/61A GB991366A (en) 1961-08-30 1961-09-01 Radio navigation receiver arrangement
US208986A US3149334A (en) 1961-08-30 1962-07-11 Radio direction finding system
US209017A US3149335A (en) 1961-08-30 1962-07-11 Radio navigation receiver arrangement
CH946762A CH417702A (de) 1961-08-30 1962-08-08 Hochfrequenzanlage zur Richtungsbestimmung
CH1019962A CH420288A (de) 1961-08-30 1962-08-28 Radionavigations-Empfangseinrichtung
FR908088A FR1340251A (fr) 1961-08-30 1962-08-29 Radiogoniomètre doppler
FR908098A FR82292E (fr) 1961-08-30 1962-08-29 Radiogoniomètre doppler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB31222/61A GB991365A (en) 1961-08-30 1961-08-30 Radio direction finding system

Publications (1)

Publication Number Publication Date
GB991365A true GB991365A (en) 1965-05-05

Family

ID=10319862

Family Applications (2)

Application Number Title Priority Date Filing Date
GB31222/61A Expired GB991365A (en) 1961-08-30 1961-08-30 Radio direction finding system
GB31549/61A Expired GB991366A (en) 1961-08-30 1961-09-01 Radio navigation receiver arrangement

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB31549/61A Expired GB991366A (en) 1961-08-30 1961-09-01 Radio navigation receiver arrangement

Country Status (5)

Country Link
US (1) US3149334A (US20100223739A1-20100909-C00005.png)
BE (1) BE621855A (US20100223739A1-20100909-C00005.png)
CH (1) CH417702A (US20100223739A1-20100909-C00005.png)
FR (1) FR1340251A (US20100223739A1-20100909-C00005.png)
GB (2) GB991365A (US20100223739A1-20100909-C00005.png)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2269086B1 (US20100223739A1-20100909-C00005.png) * 1974-04-26 1980-01-04 Onera (Off Nat Aerospatiale)
US4644358A (en) * 1982-11-13 1987-02-17 Nihon Musen Kabushiki Kaisha Stem orientation measurement apparatus
US5099248A (en) * 1991-03-15 1992-03-24 Lockheed Sanders, Inc. Transmission signal direction finding apparatus and method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2481509A (en) * 1945-09-05 1949-09-13 Paul G Hansel Directional system
GB758139A (en) * 1954-05-21 1956-09-26 Standard Telephones Cables Ltd Radio direction finding system

Also Published As

Publication number Publication date
BE621855A (US20100223739A1-20100909-C00005.png)
GB991366A (en) 1965-05-05
CH417702A (de) 1966-07-31
US3149334A (en) 1964-09-15
FR1340251A (fr) 1963-10-18

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