摘要
当前国家大力推广第五代移动通信技术,但第五代移动通信基站与卫星地球站等无线台存在干扰问题,特别是5G对气象部门CMACast卫星广播系统存在严重干扰,为了解决5G对CMACast系统的干扰问题,通过对CMACast卫星广播系统增加滤波器,和三大移动通信运营商测试了5G对CMACast系统的干扰情况,得出了有效的测试结果。通过测试发现,配有滤波器的CMACast卫星接收信噪比很高,接收机是入锁状态,且接收未完整文件很少,而没有滤波器的CMACast卫星接收的信噪比基本是0.0,接收机是未入锁状态,在6个小时的时间段,接收未完整文件近8 700个文件。通过分析测试结果,带有滤波器的CMACast卫星广播系统基本可以排除5G信号干扰,可以保证气象业务资料正常接收,且滤波器对资料接收完整性几乎无影响。
This paper puts forward a new method to solve the interference problem of 5Gto CMACast satellite system,In order to solve the interference problem of 5G to CMACast satellite broadcasting system of meteorological department,under the background that the fifth generation mobile communication base station and satellite earth station have interference problem.The interference of 5Gto CMACast system was tested and the effective test results were obtained by adding wave filters to the broadcasting system.The test shows that the CMACast satellite equipped with filters receives high signal-to-noise ratio(SNR),the receiver is locked state and receives few incomplete files.whereas the CMACast satellite without filter receives basically 0.0signal-to-noise ratio(SNR),and the receiver is unlocked state,in a 6-hour period,nearly 8700files are received for incomplete files.By analyzing the test results,the CMACast satellite broadcasting system with filter can basically eliminate the 5Gsignal interference,which can ensure the normal reception of meteorological operation data,and the filter has little effect on the integrity of data reception.
作者
马艳军
吕爽
江蕾
李涛
刘俊宏
Ma Yanjun;Lv Shuang;Jiang Lei;Li Tao;Liu Junhong(Heavy Rain and Drought-Flood Disasters in Plateau and Basin Key Laboratory of Sichuan Province,Chengdu 610071,China;Sichuan Meteorological Observation Data and Center,Chengdu 610071,China)
出处
《电子测量技术》
2020年第10期135-138,共4页
Electronic Measurement Technology
作者简介
马艳军,工学硕士,高级工程师,主要研究方向为计算机应用及HPC高性能计算机应用等。E-mail:ben_myj@126.com
