CH498404A - Method and circuit arrangement for reducing the effects of interference by selecting the polarization of the emitted energy in a radar system - Google Patents

Method and circuit arrangement for reducing the effects of interference by selecting the polarization of the emitted energy in a radar system

Info

Publication number
CH498404A
CH498404A CH1576168A CH1576168A CH498404A CH 498404 A CH498404 A CH 498404A CH 1576168 A CH1576168 A CH 1576168A CH 1576168 A CH1576168 A CH 1576168A CH 498404 A CH498404 A CH 498404A
Authority
CH
Switzerland
Prior art keywords
polarization
interference
selecting
reducing
effects
Prior art date
Application number
CH1576168A
Other languages
German (de)
Inventor
Sigurd Dipl-Ing Sjoqvist Rune
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of CH498404A publication Critical patent/CH498404A/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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/024—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using polarisation effects
    • G01S7/026—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using polarisation effects involving the transmission of elliptically or circularly polarised waves
    • 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

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Load-Engaging Elements For Cranes (AREA)
CH1576168A 1967-10-26 1968-10-22 Method and circuit arrangement for reducing the effects of interference by selecting the polarization of the emitted energy in a radar system CH498404A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1463567A SE303531B (en) 1967-10-26 1967-10-26

Publications (1)

Publication Number Publication Date
CH498404A true CH498404A (en) 1970-10-31

Family

ID=20299420

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1576168A CH498404A (en) 1967-10-26 1968-10-22 Method and circuit arrangement for reducing the effects of interference by selecting the polarization of the emitted energy in a radar system

Country Status (5)

Country Link
CH (1) CH498404A (en)
DE (1) DE1804896A1 (en)
DK (1) DK125346B (en)
NO (1) NO121289B (en)
SE (1) SE303531B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1605305A (en) * 1977-02-22 1988-10-05 Emi Ltd Radar arrangements
DE3171659D1 (en) * 1980-04-16 1985-09-12 Elint Corp Polarization ratiometry object detection system and method
US4520362A (en) * 1980-04-16 1985-05-28 Elint Corporation Polarization ratiometry object detection system and method
DE3519809A1 (en) * 1985-06-03 1986-12-04 A. Rohé GmbH, 8000 München Method and arrangement for determining the unbalance position of wheels
FR2598228B1 (en) * 1986-04-30 1988-12-09 Thomson Csf RAIN PROTECTION AGAINST RAIN ECHOES AND METHOD FOR PROTECTING A RAIN AGAINST RAIN ECHOES

Also Published As

Publication number Publication date
DE1804896A1 (en) 1969-09-04
NO121289B (en) 1971-02-08
DK125346B (en) 1973-02-05
SE303531B (en) 1968-09-02

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Legal Events

Date Code Title Description
PL Patent ceased