中文说明： 表示出两帧图像间各个像素点的相对情况，pwm整流器的建模仿真，毕设内容，高光谱图像基本处理，相参脉冲串复调制信号，利用最小二乘法进行拟合多元非线性方程，基于kaiser窗的双谱线插值FFT谐波分析。
English Description：
It shows the relative situation of each pixel between two images, modeling and Simulation of PWM rectifier, finishing content, basic processing of hyperspectral image, coherent pulse train complex modulation signal, using least square method to fit multivariate nonlinear equation, double spectral line interpolation FFT harmonic analysis based on Kaiser window.