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为了研究空间等离子体环境对卫星光通信系统的影响,利用等离子体的特征频率,分析了等离子体对激光传输信号的影响,结果表明等离子体对激光信号的衰减很小,可以忽略。进一步分析了等离子体对卫星表面的充放电过程,结果表明100 eV低能等离子体对卫星起不到干扰破坏的作用,300 eV以上中等能量的等离子体可以有效地干扰卫星的正常工作。
In order to study the influence of space plasma environment on satellite optical communication system, the influence of plasma on laser transmission signal is analyzed by using the characteristic frequency of plasma. The results show that the attenuation of laser signal by plasma is small and negligible. Further analysis of plasma on the satellite surface charge and discharge process results show that 100 eV low-energy plasma on the satellite can not interfere with the destruction of the role of more than 300 eV medium-energy plasma can effectively interfere with the normal operation of the satellite.