FR989206A - Improvements to radio-electric guidance systems - Google Patents

Improvements to radio-electric guidance systems

Info

Publication number
FR989206A
FR989206A FR989206DA FR989206A FR 989206 A FR989206 A FR 989206A FR 989206D A FR989206D A FR 989206DA FR 989206 A FR989206 A FR 989206A
Authority
FR
France
Prior art keywords
radio
guidance systems
electric guidance
electric
systems
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.)
Societe Francaise Radio Electrique
Original Assignee
Societe Francaise Radio Electrique
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 Societe Francaise Radio Electrique filed Critical Societe Francaise Radio Electrique
Application granted granted Critical
Publication of FR989206A publication Critical patent/FR989206A/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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/75—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR989206D 1944-02-15 1944-02-15 Improvements to radio-electric guidance systems Expired FR989206A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR989206T 1944-02-15

Publications (1)

Publication Number Publication Date
FR989206A true FR989206A (en) 1951-09-06

Family

ID=9540086

Family Applications (1)

Application Number Title Priority Date Filing Date
FR989206D Expired FR989206A (en) 1944-02-15 1944-02-15 Improvements to radio-electric guidance systems

Country Status (1)

Country Link
FR (1) FR989206A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1058580B (en) * 1956-08-16 1959-06-04 Philips Patentverwaltung Method for the identification of a moving object from a plurality of similar objects by means of a radar system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1058580B (en) * 1956-08-16 1959-06-04 Philips Patentverwaltung Method for the identification of a moving object from a plurality of similar objects by means of a radar system

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