IT947142B - IMPROVEMENTS TO RADIOGONIOMETERS - Google Patents

IMPROVEMENTS TO RADIOGONIOMETERS

Info

Publication number
IT947142B
IT947142B IT2000772A IT2000772A IT947142B IT 947142 B IT947142 B IT 947142B IT 2000772 A IT2000772 A IT 2000772A IT 2000772 A IT2000772 A IT 2000772A IT 947142 B IT947142 B IT 947142B
Authority
IT
Italy
Prior art keywords
radiogoniometers
Prior art date
Application number
IT2000772A
Other languages
Italian (it)
Inventor
J Casadepax
J Tardieu
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
Priority claimed from FR7103217A external-priority patent/FR2143505B1/fr
Priority claimed from FR7123874A external-priority patent/FR2150565A2/fr
Application filed by Dba Sa filed Critical Dba Sa
Application granted granted Critical
Publication of IT947142B publication Critical patent/IT947142B/en

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)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
IT2000772A 1971-02-01 1972-01-31 IMPROVEMENTS TO RADIOGONIOMETERS IT947142B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7103217A FR2143505B1 (en) 1971-02-01 1971-02-01
FR7123874A FR2150565A2 (en) 1971-02-01 1971-06-30

Publications (1)

Publication Number Publication Date
IT947142B true IT947142B (en) 1973-05-21

Family

ID=26216184

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2000772A IT947142B (en) 1971-02-01 1972-01-31 IMPROVEMENTS TO RADIOGONIOMETERS

Country Status (3)

Country Link
DE (1) DE2204262A1 (en)
IT (1) IT947142B (en)
NL (1) NL7201168A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6333723B1 (en) * 2000-12-05 2001-12-25 Magneto-Inductive Systems Limited Switchable transceiver antenna

Also Published As

Publication number Publication date
DE2204262A1 (en) 1973-05-10
NL7201168A (en) 1973-02-26

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