有较好的参考价值，是学习PCA特征提取的很好的学习资料，表示出两帧图像间各个像素点的相对情况，从先验概率中采样，计算权重，仿真图是速度、距离、幅度三维图像，pwm整流器的建模仿真。-There are good reference value, Is a good learning materials to learn PCA feature extraction, Between two images showing the relative circumstances of each pixel, Sampling　a priori probability, calculate the weight, FIG simulation speed, distance, amplitude three-dimensional image, Modeling and simulation pwm rectifie.