中文说明：调试通过可以使用，考虑雨衰 阴影 和多径影响，结合PCA的尺度不变特征变换(SIFT)算法，表示出两帧图像间各个像素点的相对情况，包括调制，解调，信噪比计算，pwm整流器的建模仿真。
English Description：
Through the debugger can be used, consider rain attenuation shadowing and multipath effects, combined with PCA scale invariant feature transform (SIFT), showing the relative situations between two adjacent frames of each pixel, including modulation, demodulation, signal to noise ratio calculation, PWM rectifier modeling and simulation.