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JPS561641A - Cross polarization compensating device - Google Patents

Cross polarization compensating device

Info

Publication number
JPS561641A
JPS561641A JP7768979A JP7768979A JPS561641A JP S561641 A JPS561641 A JP S561641A JP 7768979 A JP7768979 A JP 7768979A JP 7768979 A JP7768979 A JP 7768979A JP S561641 A JPS561641 A JP S561641A
Authority
JP
Japan
Prior art keywords
branching filter
polarizer
rainfall
control unit
converting circuit
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.)
Granted
Application number
JP7768979A
Other languages
Japanese (ja)
Other versions
JPS6322103B2 (en
Inventor
Kazunori Inagaki
Hironori Yuki
Shizuo Endo
Mikio Yokoyama
Fumio Takeda
Osami Ishida
Shojiro Kanitani
Shinichi Betsudan
Yoshihiko Yoshikawa
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.)
Mitsubishi Electric Corp
KDDI Corp
Original Assignee
Kokusai Denshin Denwa KK
Mitsubishi Electric Corp
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 Kokusai Denshin Denwa KK, Mitsubishi Electric Corp filed Critical Kokusai Denshin Denwa KK
Priority to JP7768979A priority Critical patent/JPS561641A/en
Publication of JPS561641A publication Critical patent/JPS561641A/en
Publication of JPS6322103B2 publication Critical patent/JPS6322103B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/002—Reducing depolarization effects

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:To increase the life time of the compensating device as well as reduce the fault frequency, by installing the rainfall discriminating control unit and then actuating the compensating device only in case the interference wave occurs to the output of the polarizer which passed through the polarization converting circuit. CONSTITUTION:The circular polarized waves A and B received at antenna 1 after passing through the rainfall region are received in the form of the opposite-turning oval polarized waves to each other. And waves A and B are isolated from each other via transmission/reception group branching filter 2, polarized wave converting circuit 3 and polarizer each to be taken out at terminals 10 and 11 via branching filter 9, couplers 5 and 5, and branching filter 9 each. In this case, the oval polarized wave output passed through polarizer 4 and branching filter 9 is supplied to rainfall discriminating control unit 15. And compensating control unit 13 is operated with the output of unit 15. Unit 13 extracts the amplitude information of each polarized wave, and then gives the control to variable attenuators 6 and 7 plus converting circuit 3 each.
JP7768979A 1979-06-20 1979-06-20 Cross polarization compensating device Granted JPS561641A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7768979A JPS561641A (en) 1979-06-20 1979-06-20 Cross polarization compensating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7768979A JPS561641A (en) 1979-06-20 1979-06-20 Cross polarization compensating device

Publications (2)

Publication Number Publication Date
JPS561641A true JPS561641A (en) 1981-01-09
JPS6322103B2 JPS6322103B2 (en) 1988-05-10

Family

ID=13640852

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7768979A Granted JPS561641A (en) 1979-06-20 1979-06-20 Cross polarization compensating device

Country Status (1)

Country Link
JP (1) JPS561641A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57202147A (en) * 1981-06-08 1982-12-10 Kokusai Denshin Denwa Co Ltd <Kdd> Automatic axial ratio compensator
JPS60140945A (en) * 1983-12-28 1985-07-25 Fujitsu Ltd Different polarization signal removal control method
US7345625B1 (en) * 2005-09-28 2008-03-18 Lockheed Martin Corporation Radar polarization calibration and correction

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5424519A (en) * 1977-07-27 1979-02-23 Kokusai Denshin Denwa Co Ltd Axial ratio compensator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5424519A (en) * 1977-07-27 1979-02-23 Kokusai Denshin Denwa Co Ltd Axial ratio compensator

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57202147A (en) * 1981-06-08 1982-12-10 Kokusai Denshin Denwa Co Ltd <Kdd> Automatic axial ratio compensator
JPH0427740B2 (en) * 1981-06-08 1992-05-12 Kokusai Denshin Denwa Kk
JPS60140945A (en) * 1983-12-28 1985-07-25 Fujitsu Ltd Different polarization signal removal control method
JPH0449299B2 (en) * 1983-12-28 1992-08-11 Fujitsu Ltd
US7345625B1 (en) * 2005-09-28 2008-03-18 Lockheed Martin Corporation Radar polarization calibration and correction

Also Published As

Publication number Publication date
JPS6322103B2 (en) 1988-05-10

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