这是一个好用的频偏估计算法的matlab仿真程序,利用最小二乘法进行拟合多元非线性方程，Gabor小波变换与PCA的人脸识别代码。- This is a useful frequency estimation algorithm matlab simulation program, Multivariate least squares fitting method of nonlinear equations, Gabor wavelet transform and PCA face recog