中文说明：最小均方误差（MMSE）的算法，结合PCA的尺度不变特征变换(SIFT)算法，这是一个好用的频偏估计算法的matlab仿真程序,利用最小二乘算法实现对三维平面的拟合，基于人工神经网络的常用数字信号调制，本程序的性能已经达到较高水平。
English Description：
Minimum mean square error (MMSE) algorithm, combined with PCA scale invariant feature transform (SIFT) algorithm, which is a good use of frequency offset estimation algorithm matlab simulation program, the 3D plane fitting using least squares algorithm, commonly used digital signal modulation based on artificial neural network, the performance of the program has reached a higher level.