ES413427A1 - Un sistema doppler de radiofaros para la navegacion con filtro angular. - Google Patents

Un sistema doppler de radiofaros para la navegacion con filtro angular.

Info

Publication number
ES413427A1
ES413427A1 ES413427A ES413427A ES413427A1 ES 413427 A1 ES413427 A1 ES 413427A1 ES 413427 A ES413427 A ES 413427A ES 413427 A ES413427 A ES 413427A ES 413427 A1 ES413427 A1 ES 413427A1
Authority
ES
Spain
Prior art keywords
parallel plate
array
plate structure
doppler
radiation
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
ES413427A
Other languages
English (en)
Spanish (es)
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.)
Nokia Spain SA
Original Assignee
Alcatel Espana SA
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 Alcatel Espana SA filed Critical Alcatel Espana SA
Publication of ES413427A1 publication Critical patent/ES413427A1/es
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
    • G01S1/38—Systems for determining direction or position line using comparison of [1] the phase of the envelope of the change of frequency, due to Doppler effect, of the signal transmitted by an antenna moving, or appearing to move, in a cyclic path with [2] the phase of a reference signal, the frequency of this reference signal being synchronised with that of the cyclic movement, or apparent cyclic movement, of the antenna
    • G01S1/40—Systems for determining direction or position line using comparison of [1] the phase of the envelope of the change of frequency, due to Doppler effect, of the signal transmitted by an antenna moving, or appearing to move, in a cyclic path with [2] the phase of a reference signal, the frequency of this reference signal being synchronised with that of the cyclic movement, or apparent cyclic movement, of the antenna the apparent movement of the antenna being produced by cyclic sequential energisation of fixed antennas

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Aerials With Secondary Devices (AREA)
ES413427A 1972-04-06 1973-04-06 Un sistema doppler de radiofaros para la navegacion con filtro angular. Expired ES413427A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US24171772A 1972-04-06 1972-04-06

Publications (1)

Publication Number Publication Date
ES413427A1 true ES413427A1 (es) 1976-01-16

Family

ID=22911873

Family Applications (1)

Application Number Title Priority Date Filing Date
ES413427A Expired ES413427A1 (es) 1972-04-06 1973-04-06 Un sistema doppler de radiofaros para la navegacion con filtro angular.

Country Status (9)

Country Link
US (1) US3737908A (https=)
JP (1) JPS5144399B2 (https=)
AU (1) AU5413873A (https=)
BE (1) BE797837A (https=)
CA (1) CA1005892A (https=)
DE (1) DE2316910A1 (https=)
ES (1) ES413427A1 (https=)
FR (1) FR2179150A1 (https=)
GB (1) GB1424693A (https=)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5632256U (https=) * 1979-08-16 1981-03-30
FR2913774B1 (fr) * 2007-03-16 2010-11-26 Thales Sa Dispositif et procede de localisation d'un mobile a l'approche d'une surface reflechissant les ondes electromagnetiques
CN113567941B (zh) * 2021-08-04 2023-09-19 上海无线电设备研究所 一种目标近场多普勒回波快速仿真方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1236141A (en) * 1969-03-07 1971-06-23 Standard Telephones Cables Ltd Radio navigation system

Also Published As

Publication number Publication date
JPS5144399B2 (https=) 1976-11-27
GB1424693A (en) 1976-02-11
CA1005892A (en) 1977-02-22
FR2179150A1 (https=) 1973-11-16
DE2316910A1 (de) 1973-10-18
AU5413873A (en) 1974-10-10
BE797837A (fr) 1973-10-08
JPS4910694A (https=) 1974-01-30
US3737908A (en) 1973-06-05

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