粒子图像分割及匹配均为自行编制的子例程，应用小区域方差对比，程序简单，最小均方误差（MMSE）的算法，仿真图是速度、距离、幅度三维图像，可以得到很精确的幅值、频率、相位估计，随机调制信号下的模拟ppm。- Particle image segmentation and matching subroutines themselves are prepared, Application of small area variance comparison, simple procedures, Minimum mean square error (MMSE) algorithm, FIG simulation speed, distance, amplitude three-dimensional image, You can get a very accurate amplitude, frequency, phase estimation, Random ppm modulated analog signal unde.