JPS567534A - Compensating system for identification of cross polarization - Google Patents

Compensating system for identification of cross polarization

Info

Publication number
JPS567534A
JPS567534A JP8259879A JP8259879A JPS567534A JP S567534 A JPS567534 A JP S567534A JP 8259879 A JP8259879 A JP 8259879A JP 8259879 A JP8259879 A JP 8259879A JP S567534 A JPS567534 A JP S567534A
Authority
JP
Japan
Prior art keywords
signal
vertical polarization
polarization
phase
amplitude
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
JP8259879A
Other languages
Japanese (ja)
Other versions
JPS5821461B2 (en
Inventor
Takahiko Miyajima
Shigeharu Okamoto
Shozo Komaki
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP8259879A priority Critical patent/JPS5821461B2/en
Publication of JPS567534A publication Critical patent/JPS567534A/en
Publication of JPS5821461B2 publication Critical patent/JPS5821461B2/en
Expired 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

Abstract

PURPOSE:To compensate the waveform distortion, by controlling the amplitude of the base band signal at polarized wave side, in demodulating the transmission wave by using the reference carrier different in phase by 90 deg. CONSTITUTION:The horizontal polarization signal is fed to the terminal 41 and the vertical polarization signal is to the terminal 42. Detectors 50, 51, 52 perform demodulation with the signal having the phase diference by 90 deg. from the phase shifter 49. Thus, the first and second series signal of the horizontal polarization demodulation and those of the vertical polarization demodulation are obrained. The output of the phase detector 50 is fed to the synthesis circuit 56, and the correlation between the first and second series signals of the vertical polarization from the circuits 54 and 55 is taken at the correlating units 57 and 58 to be the control signal for the amplitude control circuits 61 and 62. The synthesis circuit 56 synthesizes the first and second signals of the vertical polarization in amplitude-control and outputs the first series base band signal of horizontal polarization without vertical polarization components.
JP8259879A 1979-07-02 1979-07-02 Cross polarization discrimination compensation method Expired JPS5821461B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8259879A JPS5821461B2 (en) 1979-07-02 1979-07-02 Cross polarization discrimination compensation method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8259879A JPS5821461B2 (en) 1979-07-02 1979-07-02 Cross polarization discrimination compensation method

Publications (2)

Publication Number Publication Date
JPS567534A true JPS567534A (en) 1981-01-26
JPS5821461B2 JPS5821461B2 (en) 1983-04-30

Family

ID=13778914

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8259879A Expired JPS5821461B2 (en) 1979-07-02 1979-07-02 Cross polarization discrimination compensation method

Country Status (1)

Country Link
JP (1) JPS5821461B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59148445A (en) * 1983-02-14 1984-08-25 Fujitsu Ltd System for compensating interference between cross polarized waves
JPH01145440A (en) * 1987-11-30 1989-06-07 Ishii Kogyo Kk Air damper
JPH04160237A (en) * 1990-10-24 1992-06-03 Totsuku Bearing Kk Air damper device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59148445A (en) * 1983-02-14 1984-08-25 Fujitsu Ltd System for compensating interference between cross polarized waves
JPH01145440A (en) * 1987-11-30 1989-06-07 Ishii Kogyo Kk Air damper
JPH04160237A (en) * 1990-10-24 1992-06-03 Totsuku Bearing Kk Air damper device

Also Published As

Publication number Publication date
JPS5821461B2 (en) 1983-04-30

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