KR950022096A - Leakage Carrier Elimination Modulation Circuit - Google Patents

Leakage Carrier Elimination Modulation Circuit Download PDF

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Publication number
KR950022096A
KR950022096A KR1019930029179A KR930029179A KR950022096A KR 950022096 A KR950022096 A KR 950022096A KR 1019930029179 A KR1019930029179 A KR 1019930029179A KR 930029179 A KR930029179 A KR 930029179A KR 950022096 A KR950022096 A KR 950022096A
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KR
South Korea
Prior art keywords
carrier
circuit
leak
leakage
modulation circuit
Prior art date
Application number
KR1019930029179A
Other languages
Korean (ko)
Other versions
KR960011110B1 (en
Inventor
김남수
홍헌진
조병진
Original Assignee
양승택
재단법인 한국전자통신연구소
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.)
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Application filed by 양승택, 재단법인 한국전자통신연구소 filed Critical 양승택
Priority to KR1019930029179A priority Critical patent/KR960011110B1/en
Publication of KR950022096A publication Critical patent/KR950022096A/en
Application granted granted Critical
Publication of KR960011110B1 publication Critical patent/KR960011110B1/en

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K7/00—Modulating pulses with a continuously-variable modulating signal

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  • Transceivers (AREA)
  • Amplitude Modulation (AREA)
  • Noise Elimination (AREA)

Abstract

본 발명은 기존의 믹서회로에 누설 캐리어 신호를 제거하기 위한 회로를 부가적으로 삽입 시켜서 누설 캐리어를 제거할 뿐만 아니라 누설 캐리어에 의하여 발생되는 DC성분송출을 제거하여, 수신시 누설 캐리어와 DC오프셋으로 인하여 발생하는 수신 오율의 증가를 방지하도록 한 누설 캐리어 제거 변조 회로를 새로이 첨가 하였는데, 상기 누설캐리어 제거회로는 위상 반전 회로(203)와, 반전된 캐리어의 진폭 조정회로(204), 그리고 신호 합성기(205)를 구비한다. 이에 따라 본 발명은, 변조회로 구성시 믹서의 출럭으로 유출되는 캐리어 성분을 제거하고, 코우히어런트 수신기와 병행하여 사용할 때 수신 오율을 감소시키는 효과가 있다.The present invention additionally inserts a circuit for removing a leak carrier signal into an existing mixer circuit to not only remove the leak carrier, but also to remove the DC component generated by the leak carrier, so as to receive the leak carrier and the DC offset. A new leakage carrier cancellation modulation circuit is added to prevent an increase in reception error rate caused by the leakage carrier removal circuit. The leakage carrier removal circuit includes a phase inversion circuit 203, an amplitude adjustment circuit 204 of an inverted carrier, and a signal synthesizer ( 205). Accordingly, the present invention has the effect of removing the carrier component leaked to the output of the mixer in the modulation circuit configuration, and reduces the reception error rate when used in combination with the coherent receiver.

Description

누설 캐리어 제거 변조 회로Leakage Carrier Elimination Modulation Circuit

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 본 발명에 의한 누설 캐리어 제거 변조회로의 구성도.2 is a block diagram of a leakage carrier cancellation modulation circuit according to the present invention.

Claims (1)

기저대역 신호와 캐리어 주파수를 합성하는 믹서(201)와, 상기 믹서(201)로 캐리어 주파수를 발생하는 발진기(202)를 구비한 변조회로에 있어서, 상기 발진기(202)출력되는 캐리어 신호를 위상 반전시키는 위상 반전회로(203)와, 상기 위상 반전회로(203)의 출력의 진폭을 조정하는 진폭조정회로(204)와, 상기 믹서(201)에서 출력되는 신호와 상기 진폭조정회로(204)에서 출력되는 진폭조정된 신호를 합성하는신호 합성기(205)를 더 구비하도록 한 것을 특징으로 하는 누설 캐리어 제거 변조 회로.In a modulation circuit including a mixer 201 for synthesizing a baseband signal and a carrier frequency and an oscillator 202 for generating a carrier frequency to the mixer 201, the carrier signal output from the oscillator 202 is phase inverted. A phase inversion circuit 203, an amplitude adjustment circuit 204 for adjusting the amplitude of the output of the phase inversion circuit 203, a signal output from the mixer 201, and an output from the amplitude adjustment circuit 204. And a signal synthesizer (205) for synthesizing the amplitude-adjusted signal. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930029179A 1993-12-22 1993-12-22 Modulated circuit of leakage carrier derival KR960011110B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930029179A KR960011110B1 (en) 1993-12-22 1993-12-22 Modulated circuit of leakage carrier derival

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930029179A KR960011110B1 (en) 1993-12-22 1993-12-22 Modulated circuit of leakage carrier derival

Publications (2)

Publication Number Publication Date
KR950022096A true KR950022096A (en) 1995-07-26
KR960011110B1 KR960011110B1 (en) 1996-08-20

Family

ID=19372253

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930029179A KR960011110B1 (en) 1993-12-22 1993-12-22 Modulated circuit of leakage carrier derival

Country Status (1)

Country Link
KR (1) KR960011110B1 (en)

Also Published As

Publication number Publication date
KR960011110B1 (en) 1996-08-20

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