微小卫星地面站的电磁环境测试与分析
Measurement and Analysis of Electromagnetic Environment around
the Micro-satellite Ground Station
摘要 介绍了预选站址周围电磁干扰源的类型、微小卫星地面站系统的主要技术指标及天线口面处最大允许的干扰电平;测试微小卫星地面站的预选站电磁环境,并对测试结果进行了计算和分析。测试结果表明,点频干扰信号会对卫星地面站数据接收造成影响。最后找出了干扰源所在位置,并排除此干扰信号。
关键词 微小卫星;卫星地面站;电磁环境测试;卫星地面站选址;频谱分析仪
Abstract In order to ensure that the micro-satellite ground station works well, the
electromagnetic environment around the preselected site must be measured.The types
of EMI sources around the preselected site, the specifications of micro-satellite ground
station and maximum allowable interference level at antenna aperture are introduced.
The measurement of the electromagnetic environment for the site selection, including
the calculation and analysis of the measuring results, are detailed. The test results
indicate that dot frequency interference could have an impact on the data receiving of
the satellite ground station. Finally, the location of the interference source is found by
surveying the electromagnetic environment, and the interference signal is ruled out
through the coordinating with the departments concerned.
Keywords micro-satellite;satellite ground station;measurement of the
electromagnetic environment;site selection of the satellite ground station;spectrum
analyzer
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