【摘要】 本文分析了模拟和数字卫星电视接收系统对信号载噪比（C/N）的要求,及卫星下行信号的对比分析和卫星接收天线增益的取值,给出了实现卫星电视接收的最佳参数。更多还原

【Abstract】 In this paper, the author analyses the requirements of the analog ＆digital satellite TV receiving system to the signal-noise ratio, the downward signals of satellites and the value of the gain antenna of the satellite receiver. She also gives the optimum parameters of realizing the receipt of satellite signals by TV receivers.更多还原