一个信号通过移动无线信道所经历的衰落取决于传输信号的性质和多径信道的统计特性。 信号参数为带宽Bs、符号周期Ts，两者互为倒数-A signal through the mobile radio channel fading experienced by signals depends on the nature and multi-path channel statistical characteristics. Bandwidth of the signal parameters for t