中文说明：本程序通过读取外部仿真产生的信道参数数据，然后将这些参数加载到外部读入的信号数据上，以实现信号经过信道传输之后到达接收机时的状态，主要包括时延特性，衰减特性以及频谱偏移特性三大参数
English Description：
This procedure through reading the channel parameters of the data generated by the simulation of external, and then these parameters are loaded into the external input signal data, to realize the signal reaches the receiver after channel transmission of state, including delay, attenuation and frequency shift characteristics of three parameters