NO131692B - - Google Patents

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Publication number
NO131692B
NO131692B NO2738/71A NO273871A NO131692B NO 131692 B NO131692 B NO 131692B NO 2738/71 A NO2738/71 A NO 2738/71A NO 273871 A NO273871 A NO 273871A NO 131692 B NO131692 B NO 131692B
Authority
NO
Norway
Prior art keywords
antenna
antennas
frequency
radio navigation
period
Prior art date
Application number
NO2738/71A
Other languages
English (en)
Norwegian (no)
Other versions
NO131692C (enrdf_load_stackoverflow
Inventor
H Becavin
Original Assignee
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
Priority claimed from FR7026433A external-priority patent/FR2108146B1/fr
Priority claimed from FR7026432A external-priority patent/FR2112029B1/fr
Priority claimed from FR7117979A external-priority patent/FR2137312B2/fr
Priority claimed from FR7117978A external-priority patent/FR2135115B2/fr
Application filed by Thomson Csf filed Critical Thomson Csf
Publication of NO131692B publication Critical patent/NO131692B/no
Publication of NO131692C publication Critical patent/NO131692C/no

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
    • H04B7/0822—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection according to predefined selection scheme
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
    • H01Q21/26—Turnstile or like antennas comprising arrangements of three or more elongated elements disposed radially and symmetrically in a horizontal plane about a common centre
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/24—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Signal Processing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Radar Systems Or Details Thereof (AREA)
NO2738/71A 1970-07-17 1971-07-16 NO131692C (enrdf_load_stackoverflow)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR7026433A FR2108146B1 (enrdf_load_stackoverflow) 1970-07-17 1970-07-17
FR7026432A FR2112029B1 (enrdf_load_stackoverflow) 1970-07-17 1970-07-17
FR7117979A FR2137312B2 (enrdf_load_stackoverflow) 1970-07-17 1971-05-18
FR7117978A FR2135115B2 (enrdf_load_stackoverflow) 1970-07-17 1971-05-18

Publications (2)

Publication Number Publication Date
NO131692B true NO131692B (enrdf_load_stackoverflow) 1975-04-01
NO131692C NO131692C (enrdf_load_stackoverflow) 1975-07-09

Family

ID=27446069

Family Applications (1)

Application Number Title Priority Date Filing Date
NO2738/71A NO131692C (enrdf_load_stackoverflow) 1970-07-17 1971-07-16

Country Status (10)

Country Link
US (1) US3747101A (enrdf_load_stackoverflow)
JP (1) JPS5316677B1 (enrdf_load_stackoverflow)
AU (1) AU457255B2 (enrdf_load_stackoverflow)
BE (1) BE769039A (enrdf_load_stackoverflow)
CA (1) CA938354A (enrdf_load_stackoverflow)
DE (1) DE2135737C2 (enrdf_load_stackoverflow)
GB (1) GB1333804A (enrdf_load_stackoverflow)
LU (1) LU63543A1 (enrdf_load_stackoverflow)
NL (1) NL172187C (enrdf_load_stackoverflow)
NO (1) NO131692C (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5559756U (enrdf_load_stackoverflow) * 1978-10-20 1980-04-23
JPH01141846U (enrdf_load_stackoverflow) * 1988-03-25 1989-09-28

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2994081A (en) * 1953-03-06 1961-07-25 Edward C Jordan Radio direction finder
DE1123000B (de) * 1958-07-16 1962-02-01 Standard Elektrik Lorenz Ag Anordnung zur drahtlosen Richtungsbestimmung auf Grund des Dopplereffektes

Also Published As

Publication number Publication date
LU63543A1 (enrdf_load_stackoverflow) 1971-11-16
DE2135737C2 (de) 1982-09-09
BE769039A (fr) 1971-11-03
DE2135737A1 (de) 1972-01-20
US3747101A (en) 1973-07-17
GB1333804A (en) 1973-10-17
JPS5316677B1 (enrdf_load_stackoverflow) 1978-06-02
AU457255B2 (en) 1975-01-23
NO131692C (enrdf_load_stackoverflow) 1975-07-09
CA938354A (en) 1973-12-11
AU3113571A (en) 1973-01-18
NL7109881A (enrdf_load_stackoverflow) 1972-01-19
NL172187C (nl) 1983-07-18

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