中文说明：自写曲率计算函数 ,搭建OFDM通信系统的框架，分数阶傅里叶变换计算方面,Relief计算分类权重，包括广义互相关函数GCC时延估计，IMC-PID是利用内模控制原理来对PID参数进行计算。
English Description：
Since the writing of curvature calculation function, to build the framework of OFDM communication system and fractional Fourier transform calculation, relief calculation weights in classification, including generalized cross correlation GCC function for time delay estimation, IMC-PID is by using the internal model control principle of PID parameters are calculated.