JPS57170643A - Eliminating circuit for cross polarization interference - Google Patents

Eliminating circuit for cross polarization interference

Info

Publication number
JPS57170643A
JPS57170643A JP5552981A JP5552981A JPS57170643A JP S57170643 A JPS57170643 A JP S57170643A JP 5552981 A JP5552981 A JP 5552981A JP 5552981 A JP5552981 A JP 5552981A JP S57170643 A JPS57170643 A JP S57170643A
Authority
JP
Japan
Prior art keywords
signal
output
adder
cross polarization
received
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
JP5552981A
Other languages
Japanese (ja)
Other versions
JPS6336691B2 (en
Inventor
Junji Namiki
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP5552981A priority Critical patent/JPS57170643A/en
Priority to US06/365,143 priority patent/US4466132A/en
Priority to CA000401011A priority patent/CA1175492A/en
Publication of JPS57170643A publication Critical patent/JPS57170643A/en
Publication of JPS6336691B2 publication Critical patent/JPS6336691B2/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

Abstract

PURPOSE:To eliminate an interference component without using a signal other than a received signal by exercising control over cross polarization compensation in digital transmission on the basis of demodulated base-band signal information. CONSTITUTION:A cross polarization component adder 1 consists of a weighting circuit 12, a compensating adder 10, and a detector 11 and after a cross-polarized signal is multiplied by a compensation coefficient, a received polarized signal is added. The output signal of the adder 1 is applied to an error detector 2 to detect a difference between a transmitted and a received signal on the basis of the output signal of the adder 1. The output signal of the error detector 2 and the output of an oscillator 31 are applied to a correlator 30 to apply a correlation output to an integrator 33, which integrates the input. The output of the integrator 33 is applied as the compensation coefficient of the circuit 12 through an inverter 34 together with the output of the oscillator 31.
JP5552981A 1981-04-15 1981-04-15 Eliminating circuit for cross polarization interference Granted JPS57170643A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP5552981A JPS57170643A (en) 1981-04-15 1981-04-15 Eliminating circuit for cross polarization interference
US06/365,143 US4466132A (en) 1981-04-15 1982-04-05 Cross-polarization crosstalk elimination circuit
CA000401011A CA1175492A (en) 1981-04-15 1982-04-14 Cross-polarization crosstalk elimination circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5552981A JPS57170643A (en) 1981-04-15 1981-04-15 Eliminating circuit for cross polarization interference

Publications (2)

Publication Number Publication Date
JPS57170643A true JPS57170643A (en) 1982-10-20
JPS6336691B2 JPS6336691B2 (en) 1988-07-21

Family

ID=13001251

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5552981A Granted JPS57170643A (en) 1981-04-15 1981-04-15 Eliminating circuit for cross polarization interference

Country Status (1)

Country Link
JP (1) JPS57170643A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01188145A (en) * 1988-01-22 1989-07-27 Nippon Telegr & Teleph Corp <Ntt> Interference compensating circuit
JPH01188146A (en) * 1988-01-22 1989-07-27 Nippon Telegr & Teleph Corp <Ntt> Interference compensating circuit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05126085A (en) * 1991-11-05 1993-05-21 Sanko Pump Seisakusho:Kk Sand pump with double wing vacuum pump and vacuum pump unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01188145A (en) * 1988-01-22 1989-07-27 Nippon Telegr & Teleph Corp <Ntt> Interference compensating circuit
JPH01188146A (en) * 1988-01-22 1989-07-27 Nippon Telegr & Teleph Corp <Ntt> Interference compensating circuit

Also Published As

Publication number Publication date
JPS6336691B2 (en) 1988-07-21

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