KR970065347A - Satellite temperature compensation device - Google Patents

Satellite temperature compensation device Download PDF

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Publication number
KR970065347A
KR970065347A KR1019960008660A KR19960008660A KR970065347A KR 970065347 A KR970065347 A KR 970065347A KR 1019960008660 A KR1019960008660 A KR 1019960008660A KR 19960008660 A KR19960008660 A KR 19960008660A KR 970065347 A KR970065347 A KR 970065347A
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KR
South Korea
Prior art keywords
output
satellite
local oscillator
amplifier
output level
Prior art date
Application number
KR1019960008660A
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Korean (ko)
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KR100202067B1 (en
Inventor
고원석
Original Assignee
정장호
Lg 정보통신 주식회사
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Application filed by 정장호, Lg 정보통신 주식회사 filed Critical 정장호
Priority to KR1019960008660A priority Critical patent/KR100202067B1/en
Publication of KR970065347A publication Critical patent/KR970065347A/en
Application granted granted Critical
Publication of KR100202067B1 publication Critical patent/KR100202067B1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
    • B64G1/00—Cosmonautic vehicles
    • B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
    • B64G1/66—Arrangements or adaptations of apparatus or instruments, not otherwise provided for

Abstract

본 발명은 인공위성에서의 송수신 에이타가 우주의 온도 변화에 따라 출력레벨이 급격하게 변하는 것을 방지하고 일정한 출력을 유지하도록 한 인공위성의 온도 보상 장치에 관한 것이다.The present invention relates to a satellite temperature compensator in which a transceiver in a satellite is prevented from abruptly changing its output level in response to a temperature change of a space and a constant output is maintained.

즉, 본 발명은 국구 발진기에서 발생하는 주파수의 증폭레벨과 정상 증폭레벨의 편차를 이용하여 국부 발진기의 출력레벨에 대한 증폭률을 변화시키는 장치를 제공함으로써 항상 일정한 크기의 국부 발진기의 최종 출력 레벨이 송수신 신호에 적용되도록 하여 인공위성에서 송수신되는 신호가 급격한 온도 변화에 영향을 받지 않도록 함을 목적으로 한다.That is, the present invention provides an apparatus for changing the amplification factor with respect to the output level of the local oscillator by using the amplification level of the frequency generated in the local oscillator and the deviation of the normal amplification level, so that the final output level of the local oscillator, Signal so that signals transmitted and received by the satellite are not affected by sudden temperature changes.

이에 따라, 온도가 급격히 변하는 우주에 위치하는 인공위성에서의 국부 발진기의 출력레벨이 일정하게 되어 온도 변화에 의한 과도한 출력으로 인공위성 전체 시스템의 로드를 증가시켜 전체 시스템의 안정성과 수명을 단축시키는 경우가 줄어들어 인공위성의 수명이 연장된다.Thus, the output level of the local oscillator in the satellite located in the universe where the temperature suddenly changes is constant, and the load of the whole system of the satellite is increased by the excessive output due to the temperature change, thereby reducing the stability and the life of the entire system. The lifetime of the satellite is extended.

Description

인공위성의 온도 보상 장치Satellite temperature compensation device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제1도는 일반적인 인공위성에서 수신 데이타의 주파수 변환 장치의 개략 구성도, 제2도는 본 발명에 따른 인공위성의 온도 보상 장치의 구성도이다.FIG. 1 is a schematic diagram of a frequency conversion apparatus for receiving data in a general artificial satellite, and FIG. 2 is a configuration diagram of a temperature compensation apparatus for a satellite according to the present invention.

Claims (1)

지상으로부터 수신한 고주파수의 수신신호를 중간주파수로 변화시키거나 또는 지상으로 다시 송신할 상기 변환된 중간주파수를 고주파수로 변환시키기 위해 해당 송수신 신호에 믹싱되는 기준 주파수를 발생하는 국부 발진기와, 국부 발신기에서 출력되는 기준 주파수의 출력레벨을 증폭시켜 송수신 신호와 믹싱되도록 하는 증폭기를 포함하는 인공위성에 있어서, 상기 증푹기에서 출력되는 신호를 마이크로스트립에 의해 커플링하고 이를 직류로 반파정류하여 검출하는 출력레벨 검출기와; 상기 출력레벨 검출기의 출력전압의 크기를 증폭하는 전압 증폭기와; 상기 전압 증폭기의 출력을 디지탈화하는 A/D변환기와; 상기 증폭기를 통한 국부 발진기의 출력레벨의 편차를 미리 데이타화하여 테이블로 저장하고, 이 테이블의 데이타와 상기 A/D 변환기의 출력을 비교하여 국부 발진기의 출력레벨의 증폭률을 결정하는 롬과; 상기 롬의 출력에 의해 전류의 크기를 증폭하고, 이를 상기 증폭기로 피드백시켜 증폭기의 증폭률을 제어하는 전류 증폭기를 포함함으로써 주변 온도의 변화에도 블구하고 국부 발진기에서 출력되는 기준 주파수가 각각의 송수신 신호에 대해 항상 일정하게 출력되도록 함을 특징으로 하는 인공위성의 온도 보상 장치.A local oscillator for generating a reference frequency to be mixed with the transmission / reception signal so as to convert the reception signal of high frequency received from the ground to an intermediate frequency or to convert the converted intermediate frequency to be transmitted back to the ground to a high frequency; And an amplifier for amplifying an output level of an output reference frequency to be mixed with a transmission / reception signal, the artificial satellite comprising: an output level detector for coupling a signal output from the amplifier with a microstrip and half- Wow; A voltage amplifier for amplifying the magnitude of the output voltage of the output level detector; An A / D converter for digitizing an output of the voltage amplifier; A ROM for previously storing the deviation of the output level of the local oscillator through the amplifier into a table and comparing the data of the table with the output of the A / D converter to determine an amplification factor of the output level of the local oscillator; And a current amplifier for amplifying the magnitude of the current by the output of the ROM and controlling the amplification factor of the amplifier by feeding back the magnitude of the current to the amplifier. Thus, the reference frequency outputted from the local oscillator is divided into the respective transmission and reception signals So that the temperature of the satellite is always constant. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960008660A 1996-03-27 1996-03-27 Temperature compensation device of satellite KR100202067B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960008660A KR100202067B1 (en) 1996-03-27 1996-03-27 Temperature compensation device of satellite

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960008660A KR100202067B1 (en) 1996-03-27 1996-03-27 Temperature compensation device of satellite

Publications (2)

Publication Number Publication Date
KR970065347A true KR970065347A (en) 1997-10-13
KR100202067B1 KR100202067B1 (en) 1999-06-15

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Application Number Title Priority Date Filing Date
KR1019960008660A KR100202067B1 (en) 1996-03-27 1996-03-27 Temperature compensation device of satellite

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100442708B1 (en) * 2002-09-27 2004-08-02 한국항공우주연구원 a
KR102263947B1 (en) * 2021-02-18 2021-06-10 아주대학교산학협력단 Apparatus and method for optimizing reliability of satellite system considering both hard error and soft error

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