DE1918497A1 - Funkortungssystem - Google Patents

Funkortungssystem

Info

Publication number
DE1918497A1
DE1918497A1 DE19691918497 DE1918497A DE1918497A1 DE 1918497 A1 DE1918497 A1 DE 1918497A1 DE 19691918497 DE19691918497 DE 19691918497 DE 1918497 A DE1918497 A DE 1918497A DE 1918497 A1 DE1918497 A1 DE 1918497A1
Authority
DE
Germany
Prior art keywords
frequency
transmitter
modulated
pair
receiving channel
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.)
Withdrawn
Application number
DE19691918497
Other languages
German (de)
English (en)
Other versions
DE1918497B2 (enExample
Inventor
Pierre Laurent
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 DE1918497A1 publication Critical patent/DE1918497A1/de
Publication of DE1918497B2 publication Critical patent/DE1918497B2/de
Withdrawn legal-status Critical Current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)
DE19691918497 1968-04-11 1969-04-11 Funkortungssystem Withdrawn DE1918497A1 (de)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
DE1918497A1 true DE1918497A1 (de) 1970-02-12
DE1918497B2 DE1918497B2 (enExample) 1971-11-18

Family

ID=8648844

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19691918497 Withdrawn DE1918497A1 (de) 1968-04-11 1969-04-11 Funkortungssystem

Country Status (4)

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

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 (enExample) 1971-11-18
US3560980A (en) 1971-02-02
FR1576421A (enExample) 1969-08-01
GB1241099A (en) 1971-07-28

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Legal Events

Date Code Title Description
E77 Valid patent as to the heymanns-index 1977
8339 Ceased/non-payment of the annual fee