NO145255C - DEVICE SENSITIVE TO ELECTROMAGNETIC RADIATION - Google Patents

DEVICE SENSITIVE TO ELECTROMAGNETIC RADIATION

Info

Publication number
NO145255C
NO145255C NO783602A NO783602A NO145255C NO 145255 C NO145255 C NO 145255C NO 783602 A NO783602 A NO 783602A NO 783602 A NO783602 A NO 783602A NO 145255 C NO145255 C NO 145255C
Authority
NO
Norway
Prior art keywords
electromagnetic radiation
device sensitive
sensitive
electromagnetic
radiation
Prior art date
Application number
NO783602A
Other languages
Norwegian (no)
Other versions
NO145255B (en
NO783602L (en
Inventor
Arne Toerby
Original Assignee
Saab Scania Ab
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 Saab Scania Ab filed Critical Saab Scania Ab
Publication of NO783602L publication Critical patent/NO783602L/en
Publication of NO145255B publication Critical patent/NO145255B/en
Publication of NO145255C publication Critical patent/NO145255C/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
    • G01S3/14—Systems for determining direction or deviation from predetermined direction
    • G01S3/46—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems
    • G01S3/48—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems the waves arriving at the antennas being continuous or intermittent and the phase difference of signals derived therefrom being measured
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • H01Q25/002—Antennas or antenna systems providing at least two radiating patterns providing at least two patterns of different beamwidth; Variable beamwidth antennas

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Surgical Instruments (AREA)
NO783602A 1977-10-25 1978-10-24 DEVICE SENSITIVE TO ELECTROMAGNETIC RADIATION NO145255C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7711967A SE411596B (en) 1977-10-25 1977-10-25 FOR ELECTROMAGNETIC RADIATION SENSITIVE DEVICE, FITTED TO LOCATE A TRANSMITTER

Publications (3)

Publication Number Publication Date
NO783602L NO783602L (en) 1979-04-26
NO145255B NO145255B (en) 1981-11-02
NO145255C true NO145255C (en) 1982-02-10

Family

ID=20332670

Family Applications (1)

Application Number Title Priority Date Filing Date
NO783602A NO145255C (en) 1977-10-25 1978-10-24 DEVICE SENSITIVE TO ELECTROMAGNETIC RADIATION

Country Status (7)

Country Link
JP (1) JPS54102849A (en)
DE (1) DE2845989C2 (en)
DK (1) DK150556C (en)
FR (1) FR2407486A1 (en)
GB (1) GB2007065B (en)
NO (1) NO145255C (en)
SE (1) SE411596B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2250153B (en) * 1984-09-24 1992-10-14 Siemens Ag Methods of and systems for discovering hovering helicopters
GB2281671B (en) * 1993-08-24 1997-07-09 Cossor Electronics Ltd Improvements relating to radar antenna systems
EP0709914B1 (en) * 1994-10-25 2000-01-12 DaimlerChrysler AG RF seeker head antenna system for missiles

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4023172A (en) * 1959-12-17 1977-05-10 Numax Electronics Incorporated Monopulse system for cancellation of side lobe effects
US3761927A (en) * 1972-03-20 1973-09-25 United Aircraft Corp Rf phase detected interferometer radar
GB1337099A (en) * 1972-05-17 1973-11-14

Also Published As

Publication number Publication date
NO145255B (en) 1981-11-02
SE7711967L (en) 1979-04-26
GB2007065A (en) 1979-05-10
DK150556B (en) 1987-03-23
DE2845989C2 (en) 1983-08-18
GB2007065B (en) 1982-04-28
DK471578A (en) 1979-04-26
FR2407486B1 (en) 1984-10-26
JPS54102849A (en) 1979-08-13
DK150556C (en) 1988-02-08
SE411596B (en) 1980-01-14
NO783602L (en) 1979-04-26
FR2407486A1 (en) 1979-05-25
DE2845989A1 (en) 1979-04-26

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