无线电工程
無線電工程
무선전공정
RADIO ENGINEERING OF CHINA
2015年
5期
53-56
,共4页
魏明山%葛铁志%焦国辉%黄龙呈
魏明山%葛鐵誌%焦國輝%黃龍呈
위명산%갈철지%초국휘%황룡정
3G 信号%遥测系统%LNA 增益%噪声温度
3G 信號%遙測繫統%LNA 增益%譟聲溫度
3G 신호%요측계통%LNA 증익%조성온도
3G signal%telemetry system%LNA gain%noise temperature
随着航天技术的发展,遥测系统已成为靶场测控网络的重要组成部分,同时各通信公司正通过广泛建立基站的方式以达到3G 通讯全面覆盖的要求。着重研究联通3G 信号对遥测系统测量环境的影响,证明了在3G 信号影响空域内,遥测系统低噪声放大器(LNA)增益减小,噪声温度增大,作用距离减小,并提出针对性举措,对避免无线电测量设备在工作中受到复杂电磁信号的影响具有一定作用。
隨著航天技術的髮展,遙測繫統已成為靶場測控網絡的重要組成部分,同時各通信公司正通過廣汎建立基站的方式以達到3G 通訊全麵覆蓋的要求。著重研究聯通3G 信號對遙測繫統測量環境的影響,證明瞭在3G 信號影響空域內,遙測繫統低譟聲放大器(LNA)增益減小,譟聲溫度增大,作用距離減小,併提齣針對性舉措,對避免無線電測量設備在工作中受到複雜電磁信號的影響具有一定作用。
수착항천기술적발전,요측계통이성위파장측공망락적중요조성부분,동시각통신공사정통과엄범건립기참적방식이체도3G 통신전면복개적요구。착중연구련통3G 신호대요측계통측량배경적영향,증명료재3G 신호영향공역내,요측계통저조성방대기(LNA)증익감소,조성온도증대,작용거리감소,병제출침대성거조,대피면무선전측량설비재공작중수도복잡전자신호적영향구유일정작용。
With the development of space technology, the telemetry system has become an important part of the range measurement and control network.At the same time,all communications companies are constructing base stations in order to achieve universal coverage of 3G communication requirements.This paper studies the impact of Unicom 3G signal on for telemetry system meas?urement environment.The results show that in the airspace affected by 3G signal,the noise temperature increases and the operating range reduces with the decreasing of LNA gain of telemetry system.Based on this,some measures are presented to avoid the effect of complex electromagnetic signal on radio measurement equipment.