FR2143505B1 - - Google Patents

Info

Publication number
FR2143505B1
FR2143505B1 FR7103217A FR7103217A FR2143505B1 FR 2143505 B1 FR2143505 B1 FR 2143505B1 FR 7103217 A FR7103217 A FR 7103217A FR 7103217 A FR7103217 A FR 7103217A FR 2143505 B1 FR2143505 B1 FR 2143505B1
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
FR7103217A
Other languages
French (fr)
Other versions
FR2143505A1 (enExample
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.)
DBA SA
Original Assignee
DBA 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 DBA SA filed Critical DBA SA
Priority to FR7103217A priority Critical patent/FR2143505B1/fr
Priority to FR7121802A priority patent/FR2150560A2/fr
Priority to FR7123744A priority patent/FR2150564A2/fr
Priority to FR7123874A priority patent/FR2150565A2/fr
Priority to NL7201168A priority patent/NL7201168A/xx
Priority to DE19722204262 priority patent/DE2204262A1/de
Priority to IT2000772A priority patent/IT947142B/it
Publication of FR2143505A1 publication Critical patent/FR2143505A1/fr
Application granted granted Critical
Publication of FR2143505B1 publication Critical patent/FR2143505B1/fr
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
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/04—Details
    • G01S3/06—Means for increasing effective directivity, e.g. by combining signals having differently oriented directivity characteristics or by sharpening the envelope waveform of the signal derived from a rotating or oscillating beam antenna
    • G01S3/065—Means for increasing effective directivity, e.g. by combining signals having differently oriented directivity characteristics or by sharpening the envelope waveform of the signal derived from a rotating or oscillating beam antenna by using non-directional aerial
    • 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)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
FR7103217A 1971-02-01 1971-02-01 Expired FR2143505B1 (enExample)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR7103217A FR2143505B1 (enExample) 1971-02-01 1971-02-01
FR7121802A FR2150560A2 (enExample) 1971-02-01 1971-06-16
FR7123744A FR2150564A2 (enExample) 1971-02-01 1971-06-29
FR7123874A FR2150565A2 (enExample) 1971-02-01 1971-06-30
NL7201168A NL7201168A (enExample) 1971-02-01 1972-01-28
DE19722204262 DE2204262A1 (de) 1971-02-01 1972-01-29 Radiogoniometer
IT2000772A IT947142B (it) 1971-02-01 1972-01-31 Perfezionamenti ai radiogoniometri

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7103217A FR2143505B1 (enExample) 1971-02-01 1971-02-01

Publications (2)

Publication Number Publication Date
FR2143505A1 FR2143505A1 (enExample) 1973-02-09
FR2143505B1 true FR2143505B1 (enExample) 1975-03-21

Family

ID=9071183

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7103217A Expired FR2143505B1 (enExample) 1971-02-01 1971-02-01

Country Status (1)

Country Link
FR (1) FR2143505B1 (enExample)

Also Published As

Publication number Publication date
FR2143505A1 (enExample) 1973-02-09

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Legal Events

Date Code Title Description
CL Concession to grant licenses
ST Notification of lapse