A simulation of speech signal with trunk noise passing through CSSB-AM satellite communication link was made, the resulted SNR could be used for reference in designing CSSB-AM communication systems.

• 对带有连接电路噪声的真实语音信号进行了模拟CSSB-AM卫星通信试验,所求得的终点信噪比对CSSB-AM系统设计具有一定的参考价值。