摘要
电磁环境测试是建设卫星通信地球站的先决条件。随着我国经济发展和信息化水平的提升,射频发射设备越来越多,电磁环境也越来越复杂。电磁干扰强度的大小、电磁环境的好坏将直接影响卫星通信系统效能的发挥。首先给出了地球站电磁环境测试系统的组成,其次分析了地球站干扰信号电平指标;为了更好指导卫星地球站建设,避免建成后受到有害电磁干扰,文中还系统讨论了卫星通信地球站电磁干扰的测量方法,并通过实例详细介绍了测试过程。其具体测试过程可作为实际工程参考。
Electromagnetic environment test is a prerequisite for building satellite communication earth stations.With the improvement of economic development and information level in China,the number of radio frequency transmitting equipment has increased exponentially,and the electromagnetic environment has become more and more complex.The magnitude of electromagnetic interference and the quality of the electromagnetic environment will directly affect the performance of the satellite communication system.Firstly,the composition of the earth station electromagnetic environment test system is introduced,and then the interference signal level index of the earth station is analyzed.Subsequently,in order to guide the construction of satellite earth stations to avoid harmful electromagnetic interference,the method of measuring electromagnetic interference of satellite communication earth stations is systematically discussed.Finally,an example is given to demonstrate the testing process in detail,which can be used as a reference for actual engineering.
作者
李勇
王世琦
赵腾飞
于卫东
王海
LI Yong;WANG Shiqi;ZHAO Tengfei;YU Weidong;WANG Hai(The 54th Research Institute of CETC,Shijiazhuang 050081,China)
出处
《移动通信》
2022年第9期65-70,共6页
Mobile Communications
基金
国家科技部重点研发项目(2018YFE0207500)
国家自然科学基金项目(61971348,61901434)。
关键词
UHF频段
卫星通信
地球站
电磁环境测试
UHF frequency band
satellite communication
earth station
electromagnetic environment test
