中文说明：
Simulink工具编写代码(MATLAB Function方式)，产生一单径瑞利信道，其多普勒谱为经典谱，其中移动速率为120km/h，含理论描述多普勒经典谱
English Description：
The code written by Simulink tool (matlab function mode) generates a single path Rayleigh channel, and its Doppler spectrum is the classical spectrum, in which the moving rate is 120km / h, including the theoretical description of the Doppler classical spectrum