中文说明：包含收发两个客户端的链路级通信程序,信号处理中的旋转不变子空间法，对HARQ系统的吞吐量分析，单径或多径瑞利衰落信道仿真，实现了对10个数字音的识别程序毕业设计有用。
English Description：
Contains the sending and receiving two client link level communication program, signal processing in rotation invariant subspace method, the HARQ system throughput analysis, single path or multipath Rayleigh fading channel simulation, realized the 10 digital audio recognition program graduation design useful.