fft

代码说明：

  利用fft求取一个信号的各次谐波的幅值和相角(Fft to strike a signal amplitude of each harmonic and phase angle)

文件列表：

电路参数计算
............\DG1.mat,288096,2012-06-12
............\DG2.mat,288096,2012-06-12
............\DG3.mat,288096,2012-06-12
............\DG4.mat,288096,2012-06-12
............\DG5.mat,288096,2012-06-12
............\DG6.mat,288096,2012-06-12
............\f_f_t.m,317,2012-06-11
............\harmonic_t.mdl,27581,2012-06-11
............\harmonic_t1.m,2066,2012-06-12
............\S.mat,288094,2012-06-12
............\U-I.mat,65068,2012-06-11
............\UI.mat,71759,2012-06-12