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文中研究了扩频和非扩频两种系统条件下存在上行干扰时透明转发器卫星通信系统的性能。首先对透明转发器卫星通信系统在上行干扰条件下的性能进行分析,给出了性能计算的数学表达式。然后对这两种条件下的具体系统进行分析。研究表明,通常认为无抗干扰能力的窄带多址技术,在干扰条件下同样具有一定的健壮性;而且,导致整个系统不能工作的干扰信号功率通常比导致转发器进入饱和状态的功率要小一些。
In this paper, the performance of transparent transponder satellite communication system in the presence of uplink interference under both system conditions is studied. Firstly, the performance of transparent transponder satellite communication system under the condition of uplink interference is analyzed, and the mathematical expression of performance calculation is given. Then analyze the specific system under these two conditions. Research shows that the narrowband multiple access technology, which is generally considered as non-interference-resistant, is also robust under interference conditions. Moreover, the interference signal power that causes the entire system to work is usually less than the power that causes the transponder to saturate .