GB1241099A - Improvements in or relating to radio position finding systems - Google Patents

Improvements in or relating to radio position finding systems

Info

Publication number
GB1241099A
GB1241099A GB08552/69D GB1855269D GB1241099A GB 1241099 A GB1241099 A GB 1241099A GB 08552/69 D GB08552/69 D GB 08552/69D GB 1855269 D GB1855269 D GB 1855269D GB 1241099 A GB1241099 A GB 1241099A
Authority
GB
United Kingdom
Prior art keywords
frequency
stations
frequencies
station
outputs
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
GB08552/69D
Other languages
English (en)
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.)
RECH S ET CONST ELECTRONIQUES
Original Assignee
RECH S ET CONST ELECTRONIQUES
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 RECH S ET CONST ELECTRONIQUES filed Critical RECH S ET CONST ELECTRONIQUES
Publication of GB1241099A publication Critical patent/GB1241099A/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
    • 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
    • G01S1/08—Systems for determining direction or position line
    • G01S1/20—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems
    • G01S1/30—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems the synchronised signals being continuous waves or intermittent trains of continuous waves, the intermittency not being for the purpose of determining direction or position line and the transit times being compared by measuring the phase difference
    • G01S1/304—Analogous systems in which a beat frequency, obtained by heterodyning the signals, is compared in phase with a reference signal obtained by heterodyning the signals in a fixed reference point and transmitted therefrom, e.g. LORAC (long range accuracy) or TORAN systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
GB08552/69D 1968-04-11 1969-04-10 Improvements in or relating to radio position finding systems Expired GB1241099A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR147733 1968-04-11

Publications (1)

Publication Number Publication Date
GB1241099A true GB1241099A (en) 1971-07-28

Family

ID=8648844

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08552/69D Expired GB1241099A (en) 1968-04-11 1969-04-10 Improvements in or relating to radio position finding systems

Country Status (4)

Country Link
US (1) US3560980A (OSRAM)
DE (1) DE1918497A1 (OSRAM)
FR (1) FR1576421A (OSRAM)
GB (1) GB1241099A (OSRAM)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4307401A (en) * 1979-12-11 1981-12-22 Glumov Ivan F Two-channel receiver-indicator for phase radio systems
US4650146A (en) * 1984-10-04 1987-03-17 Duke Ned E Surf fishing rod holder

Also Published As

Publication number Publication date
DE1918497B2 (OSRAM) 1971-11-18
FR1576421A (OSRAM) 1969-08-01
US3560980A (en) 1971-02-02
DE1918497A1 (de) 1970-02-12

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee