GB2040587B - Circuit arrangements for detecting sighting errors in aerials for a telecommunication systems - Google Patents

Circuit arrangements for detecting sighting errors in aerials for a telecommunication systems

Info

Publication number
GB2040587B
GB2040587B GB7940950A GB7940950A GB2040587B GB 2040587 B GB2040587 B GB 2040587B GB 7940950 A GB7940950 A GB 7940950A GB 7940950 A GB7940950 A GB 7940950A GB 2040587 B GB2040587 B GB 2040587B
Authority
GB
United Kingdom
Prior art keywords
aerials
telecommunication systems
circuit arrangements
detecting
sighting errors
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
GB7940950A
Other versions
GB2040587A (en
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.)
Italtel SpA
Original Assignee
Societa Italiana Telecomunicazioni Siemens SpA
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 Societa Italiana Telecomunicazioni Siemens SpA filed Critical Societa Italiana Telecomunicazioni Siemens SpA
Publication of GB2040587A publication Critical patent/GB2040587A/en
Application granted granted Critical
Publication of GB2040587B publication Critical patent/GB2040587B/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
    • 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
    • G01S3/14—Systems for determining direction or deviation from predetermined direction
    • G01S3/146—Systems for determining direction or deviation from predetermined direction by comparing linear polarisation components
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
    • H01Q21/245—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction provided with means for varying the polarisation 

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Radar Systems Or Details Thereof (AREA)
GB7940950A 1978-11-27 1979-11-27 Circuit arrangements for detecting sighting errors in aerials for a telecommunication systems Expired GB2040587B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT30211/78A IT1160267B (en) 1978-11-27 1978-11-27 CIRCUIT PROVISION TO DETECT THE ANTENNA POINTING ERROR IN A TELECOMMUNICATIONS SYSTEM

Publications (2)

Publication Number Publication Date
GB2040587A GB2040587A (en) 1980-08-28
GB2040587B true GB2040587B (en) 1983-02-16

Family

ID=11229329

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7940950A Expired GB2040587B (en) 1978-11-27 1979-11-27 Circuit arrangements for detecting sighting errors in aerials for a telecommunication systems

Country Status (6)

Country Link
JP (1) JPS5577206A (en)
BR (1) BR7907537A (en)
DE (1) DE2947762A1 (en)
FR (1) FR2442518A1 (en)
GB (1) GB2040587B (en)
IT (1) IT1160267B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2507826A1 (en) * 1981-06-11 1982-12-17 Thomson Csf PRIMARY SOURCE WITH REUSE OF FREQUENCIES
EP0306654B1 (en) * 1981-08-27 1993-05-26 Mitsubishi Denki Kabushiki Kaisha Angular error detecting device
DE3177174D1 (en) * 1981-08-27 1990-05-31 Mitsubishi Electric Corp DEVICE FOR DETECTING AN ANGLE ERROR.
DE3741501C1 (en) * 1987-12-08 1989-02-02 Kathrein Werke Kg Excitation or feed system for a parabolic antenna

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT946090B (en) * 1971-11-24 1973-05-21 Siemens Spa Italiana SIGNAL EXTRACTION CIRCUIT ERROR POINTING A MICROWAVE ANTENNA TOWARDS A MOBILE TARGET

Also Published As

Publication number Publication date
IT1160267B (en) 1987-03-11
DE2947762A1 (en) 1980-06-04
GB2040587A (en) 1980-08-28
FR2442518A1 (en) 1980-06-20
IT7830211A0 (en) 1978-11-27
BR7907537A (en) 1980-08-05
JPS5577206A (en) 1980-06-10

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee