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ES416187A1 - Elevation-measuring system - Google Patents

Elevation-measuring system

Info

Publication number
ES416187A1
ES416187A1 ES416187A ES416187A ES416187A1 ES 416187 A1 ES416187 A1 ES 416187A1 ES 416187 A ES416187 A ES 416187A ES 416187 A ES416187 A ES 416187A ES 416187 A1 ES416187 A1 ES 416187A1
Authority
ES
Spain
Prior art keywords
phase
pulses
elevation
oscillation
amplitude
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
ES416187A
Other languages
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
Priority claimed from DE19722230630 external-priority patent/DE2230630C/en
Application filed by Alcatel Espana SA filed Critical Alcatel Espana SA
Publication of ES416187A1 publication Critical patent/ES416187A1/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
    • G01S1/44—Rotating or oscillating beam beacons defining directions in the plane of rotation or oscillation
    • 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
    • G01S1/302—Systems in which the direction is determined by using an interferometric type transmitting antenna array

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

A system to measure the elevation by the phase difference method, characterized in that, in the ground station, n equal and equally spaced radiators of a linear antenna set, successively and cyclically radiate pulses from an oscillation of r.f. with equal magnitude and phase. Before each radiation cycle, a pulse train is radiated. At the onboard station, the amplitude and phase of the r.f. oscillation are measured. of each impulse in relation to one of the impulses. At least two groups are formed from the pulses received from m (m < n) successive radiators each. In each group, the amplitude and phase of each pulse are changed. The sum vector of the changed pulses is formed, and is determined from the phase difference of the two sum vectors. (Machine-translation by Google Translate, not legally binding)
ES416187A 1972-06-22 1973-06-22 Elevation-measuring system Expired ES416187A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722230630 DE2230630C (en) 1972-06-22 Radio navigation system for elevation measurement using the phase difference method

Publications (1)

Publication Number Publication Date
ES416187A1 true ES416187A1 (en) 1976-03-01

Family

ID=5848514

Family Applications (1)

Application Number Title Priority Date Filing Date
ES416187A Expired ES416187A1 (en) 1972-06-22 1973-06-22 Elevation-measuring system

Country Status (7)

Country Link
JP (1) JPS5234358B2 (en)
CA (1) CA1001742A (en)
DE (1) DE2230630B1 (en)
ES (1) ES416187A1 (en)
FR (1) FR2189747B3 (en)
GB (1) GB1428682A (en)
IT (1) IT989186B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50148177U (en) * 1974-05-24 1975-12-09
DE2717997C2 (en) * 1977-04-22 1982-04-29 Standard Elektrik Lorenz Ag, 7000 Stuttgart Monopulse direction finder for azimuth and / or elevation measurement
JPS56118521U (en) * 1980-02-08 1981-09-10
JPS60177321U (en) * 1984-05-07 1985-11-25 三菱自動車工業株式会社 nut plate
JP4187377B2 (en) 2000-02-23 2008-11-26 富士通株式会社 Radio transceiver and radio wave radiation direction control method
GB2396501B (en) * 2000-02-23 2004-11-17 Fujitsu Ltd Radio transmitter and method of controlling direction of radio-wave emission

Also Published As

Publication number Publication date
CA1001742A (en) 1976-12-14
DE2230630B1 (en) 1973-11-08
JPS5234358B2 (en) 1977-09-02
FR2189747B3 (en) 1976-06-18
JPS4958796A (en) 1974-06-07
GB1428682A (en) 1976-03-17
IT989186B (en) 1975-05-20
AU5723373A (en) 1975-01-09
FR2189747A1 (en) 1974-01-25

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