毕业设计有用，包含收发两个客户端的链路级通信程序,基于互功率谱的时延估计，已调制信号计算其普相关密度，计算多重分形非趋势波动分析。- Graduation useful Contains two clients receive link-level communications program, Based on the time delay estimation of power spectrum, Modulated signals to calculate its density Pu-r