中文说明：抑制载波型差分相位调制，利用自然梯度算法，基于kaiser窗的双谱线插值FFT谐波分析，基于SVPWM的三电平逆变的matlab仿真，基于matlab平台实现,基于小波变换的数字水印算法matlab代码。
English Description：
Differential phase modulation carrier suppression, by using the natural gradient algorithm, the Kaiser window double spectrum line interpolation FFT algorithm for harmonic analysis based on, based on three-level inverter SVPWM matlab simulation, based on MATLAB platform, based on wavelet transform digital watermarking algorithm matlab code.