FR2472888B1 - - Google Patents

Info

Publication number
FR2472888B1
FR2472888B1 FR7931819A FR7931819A FR2472888B1 FR 2472888 B1 FR2472888 B1 FR 2472888B1 FR 7931819 A FR7931819 A FR 7931819A FR 7931819 A FR7931819 A FR 7931819A FR 2472888 B1 FR2472888 B1 FR 2472888B1
Authority
FR
France
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
FR7931819A
Other languages
French (fr)
Other versions
FR2472888A1 (fr
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.)
JUZHNOE PROIZV OBIEDIN
Original Assignee
JUZHNOE PROIZV OBIEDIN
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 JUZHNOE PROIZV OBIEDIN filed Critical JUZHNOE PROIZV OBIEDIN
Publication of FR2472888A1 publication Critical patent/FR2472888A1/fr
Application granted granted Critical
Publication of FR2472888B1 publication Critical patent/FR2472888B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R25/00—Arrangements for measuring phase angle between a voltage and a current or between voltages or currents
    • G01R25/08—Arrangements for measuring phase angle between a voltage and a current or between voltages or currents by counting of standard pulses
    • 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
    • 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
    • G01S1/36—Systems in which a beat frequency, obtained by heterodyning the synchronised signals, is compared in phase with a reference signal having a phase substantially independent of direction contains no documents
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Power Engineering (AREA)
  • Measuring Phase Differences (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
FR7931819A 1979-12-11 1979-12-27 Recepteur-indicateur bivoie des systemes radio a dephasage Granted FR2472888A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/102,978 US4307401A (en) 1979-12-11 1979-12-11 Two-channel receiver-indicator for phase radio systems

Publications (2)

Publication Number Publication Date
FR2472888A1 FR2472888A1 (fr) 1981-07-03
FR2472888B1 true FR2472888B1 (OSRAM) 1981-12-24

Family

ID=22292715

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7931819A Granted FR2472888A1 (fr) 1979-12-11 1979-12-27 Recepteur-indicateur bivoie des systemes radio a dephasage

Country Status (3)

Country Link
US (1) US4307401A (OSRAM)
DE (1) DE3000149C2 (OSRAM)
FR (1) FR2472888A1 (OSRAM)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2478960B (en) * 2010-03-25 2012-08-22 Guidance Ip Ltd An apparatus for measuring the relative direction of a radio signal
US9100113B2 (en) * 2011-04-26 2015-08-04 Forschungsverbund Berlin E.V. Auto-heterodyne receiver

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1576421A (OSRAM) * 1968-04-11 1969-08-01
US3781695A (en) * 1972-05-04 1973-12-25 Westinghouse Electric Corp Digital phase-locked-loop
FR2209257B1 (OSRAM) * 1972-12-01 1978-04-21 Neo Tec Etude Applic Tech
US3984771A (en) * 1975-10-20 1976-10-05 Rca Corporation Accurate digital phase/frequency extractor
US4114155A (en) * 1976-07-30 1978-09-12 Cincinnati Electronics Corporation Position determining apparatus and method

Also Published As

Publication number Publication date
FR2472888A1 (fr) 1981-07-03
DE3000149A1 (de) 1981-07-09
US4307401A (en) 1981-12-22
DE3000149C2 (de) 1982-08-05

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Legal Events

Date Code Title Description
ST Notification of lapse