FR864702A - Improvements to direction determination and detection systems - Google Patents

Improvements to direction determination and detection systems

Info

Publication number
FR864702A
FR864702A FR864702DA FR864702A FR 864702 A FR864702 A FR 864702A FR 864702D A FR864702D A FR 864702DA FR 864702 A FR864702 A FR 864702A
Authority
FR
France
Prior art keywords
detection systems
direction determination
determination
systems
detection
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
Other languages
French (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.)
Compteurs Schlumberger SA
Original Assignee
Compteurs Schlumberger 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 Compteurs Schlumberger SA filed Critical Compteurs Schlumberger SA
Application granted granted Critical
Publication of FR864702A publication Critical patent/FR864702A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
FR864702D 1940-04-08 1940-04-08 Improvements to direction determination and detection systems Expired FR864702A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR864702T 1940-04-08

Publications (1)

Publication Number Publication Date
FR864702A true FR864702A (en) 1941-05-03

Family

ID=9344002

Family Applications (1)

Application Number Title Priority Date Filing Date
FR864702D Expired FR864702A (en) 1940-04-08 1940-04-08 Improvements to direction determination and detection systems

Country Status (1)

Country Link
FR (1) FR864702A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE856362C (en) * 1942-06-20 1952-11-20 Telefunken Gmbh Process for the phase evaluation of an oscillographically recorded periodic curve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE856362C (en) * 1942-06-20 1952-11-20 Telefunken Gmbh Process for the phase evaluation of an oscillographically recorded periodic curve

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