KR910010887A - Multi-frequency communication method of the same frequency by synchronization - Google Patents

Multi-frequency communication method of the same frequency by synchronization Download PDF

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Publication number
KR910010887A
KR910010887A KR1019890016942A KR890016942A KR910010887A KR 910010887 A KR910010887 A KR 910010887A KR 1019890016942 A KR1019890016942 A KR 1019890016942A KR 890016942 A KR890016942 A KR 890016942A KR 910010887 A KR910010887 A KR 910010887A
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KR
South Korea
Prior art keywords
frequency
local oscillation
waveform
synchronization
communication method
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KR1019890016942A
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Korean (ko)
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KR940008773B1 (en
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우승환
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우승환
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Priority to KR1019890016942A priority Critical patent/KR940008773B1/en
Publication of KR910010887A publication Critical patent/KR910010887A/en
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Publication of KR940008773B1 publication Critical patent/KR940008773B1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission

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

Abstract

내용 없음No content

Description

동기에 의한 동일 주파수 다 지역 통신 방법Multi-frequency communication method of the same frequency by synchronization

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 동일 주파수 다 지역배치도.1 is the same frequency multi-regional layout.

제2도는 주파수 변조 방식의 계통도.2 is a schematic diagram of a frequency modulation scheme.

제4도는 제2도의 각 부분 파형도.4 is a partial waveform diagram of FIG.

Claims (3)

수신 주파수를 증폭하여 계수기로 분주하거나 중간 주파수를 만들어 도면 제2도와 제3도에서와 같이 분주하영 파형 4를 얻고 이 파형 주파수와 일치할 수 있게 기준 발진기의 주파수를 고정 계수기와 가변 계수기로 분주하여 위상 비교기를 사용하여 수신 주파수와 기준 발진기의 발진 주파수를 동기시키고 이 기준 주파수를 가지고 수신 국부 발진 주파수와 제2주파수인 송신 주파수를 재 동기 시키거나 파형4를 직접 수신 국부 발진 주파수와 송신 주파수에 각각 동기 시키는 장치.Amplify the received frequency and divide it with a counter or make an intermediate frequency to obtain the dividing wave form waveform 4 as shown in FIG. 2 and FIG. Use a phase comparator to synchronize the receive frequency with the oscillation frequency of the reference oscillator and use this reference frequency to resynchronize the receive local oscillation frequency and the transmit frequency, the second frequency, or directly apply waveform 4 to the receive local oscillation frequency and the transmit frequency, respectively. Synchronizing device. 제1항에 있어서 주파수 변조 방식에서는 최대 주파수 편이 수치이상 숫자로 분주하고 진폭 변조와 측대파 변조 방식에서는 최대 검파주파수(파형2)의 수치 이상으로 분주한다.The frequency modulation method divides the maximum frequency shift by a number greater than or equal to a number, and in the amplitude modulation and sideband modulation methods, it divides by a value greater than or equal to the maximum detection frequency (waveform 2). 제1항에 있어서 수신 주파수를 증폭하여 분주하거나 역변조 하지 않고 중간주파수를 이용할 경우 수신국부 발진 주파수(Fo)는 수신 주파수(RF)보다 중간주파수(IF)만큼 낮게 설정하여야 한다.The receiving local oscillation frequency Fo should be set as low as the intermediate frequency IF when the intermediate frequency is used without dividing or inversely modulating the reception frequency. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019890016942A 1989-11-22 1989-11-22 Wireless repeater KR940008773B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019890016942A KR940008773B1 (en) 1989-11-22 1989-11-22 Wireless repeater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019890016942A KR940008773B1 (en) 1989-11-22 1989-11-22 Wireless repeater

Publications (2)

Publication Number Publication Date
KR910010887A true KR910010887A (en) 1991-06-29
KR940008773B1 KR940008773B1 (en) 1994-09-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890016942A KR940008773B1 (en) 1989-11-22 1989-11-22 Wireless repeater

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KR (1) KR940008773B1 (en)

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Publication number Publication date
KR940008773B1 (en) 1994-09-26

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