多目标跟踪的粒子滤波器，从先验概率中采样，计算权重，分析了该信号的时域、频域、倒谱，循环谱等,车牌识别定位程序的部分功能，重要参数的提取，最小均方误差（MMSE）的算法。- Multi-target tracking particle filter, Sampling　a priori probability, calculate the weight, Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. Part of the license plate recognition locator feature, Extract important parameters, Minimum mean square error (MMSE) algorithm.