GB1421291A - Radionavigation receivers - Google Patents

Radionavigation receivers

Info

Publication number
GB1421291A
GB1421291A GB386173A GB386173A GB1421291A GB 1421291 A GB1421291 A GB 1421291A GB 386173 A GB386173 A GB 386173A GB 386173 A GB386173 A GB 386173A GB 1421291 A GB1421291 A GB 1421291A
Authority
GB
United Kingdom
Prior art keywords
signal
khz
dps
signals
phase
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
GB386173A
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.)
Sercel SAS
Original Assignee
Sercel SAS
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 Sercel SAS filed Critical Sercel SAS
Publication of GB1421291A publication Critical patent/GB1421291A/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
    • G01S1/308—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 particularly adapted to Omega systems

Landscapes

  • Engineering & Computer Science (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)
  • Measuring Phase Differences (AREA)
GB386173A 1972-03-23 1973-01-25 Radionavigation receivers Expired GB1421291A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7210168A FR2176552B1 (enExample) 1972-03-23 1972-03-23

Publications (1)

Publication Number Publication Date
GB1421291A true GB1421291A (en) 1976-01-14

Family

ID=9095686

Family Applications (1)

Application Number Title Priority Date Filing Date
GB386173A Expired GB1421291A (en) 1972-03-23 1973-01-25 Radionavigation receivers

Country Status (6)

Country Link
US (1) US3838426A (enExample)
AU (1) AU461341B2 (enExample)
CA (1) CA978626A (enExample)
DE (1) DE2302712C3 (enExample)
FR (1) FR2176552B1 (enExample)
GB (1) GB1421291A (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2076607B (en) * 1980-05-27 1984-03-14 Decca Ltd Apparatus for obtaining the phase of a fundamental frequency from phase values of harmonics thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3696424A (en) * 1968-12-23 1972-10-03 Ltv Electrosystems Inc Method and apparatus for very-low-frequency radio nagigation
US3665469A (en) * 1970-02-27 1972-05-23 Us Navy Apparatus for improving the lane resolution capabilities of omega navigation receivers

Also Published As

Publication number Publication date
FR2176552B1 (enExample) 1976-10-29
US3838426A (en) 1974-09-24
AU461341B2 (en) 1975-05-22
DE2302712A1 (de) 1973-10-04
DE2302712C3 (de) 1979-03-08
CA978626A (en) 1975-11-25
DE2302712B2 (de) 1978-07-20
AU5159073A (en) 1974-08-01
FR2176552A1 (enExample) 1973-11-02

Similar Documents

Publication Publication Date Title
US3150372A (en) Computing system
AU610393B2 (en) Df receiving system for collision avoidance
US3789409A (en) Navigation system using satellites and passive ranging techniques
US3821523A (en) Aircraft locating system using agile tacan vortac dme
US2213273A (en) Radio direction finding apparatus
US3845484A (en) Signal generator for testing vor navigation receivers
GB951908A (en) Position determination system
SE7702745L (sv) Radiointerferometeranleggning
US3397400A (en) Method and apparatus for radio navigation
US3757126A (en) Input stage amplifier gain and balance method of setting moire fringe transducer reading head skew angle and
GB1421291A (en) Radionavigation receivers
US3967277A (en) Radio navigation system
US2924820A (en) Aerial navigation beacon system
US3270343A (en) Receiver for receiving multiple frequencies transmitted simultaneously by a phase comparison navigational system
US3634862A (en) Precision approach and landing system
US2438573A (en) Equisignal radio beacon system
GB1278275A (en) Radio hyperbolic navigation
GB675698A (en) Radio navigation system
US2766450A (en) Apparatus for measuring the time relationship between recurrent radio frequency pulses
US2677821A (en) Blind landing system
US2624877A (en) Course indicating system
US2513321A (en) Radio location system
US3337872A (en) Radio navigation system
US2462764A (en) Navigation system
US2975417A (en) Long range radio navigation system

Legal Events

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