中文说明：粒子滤波目标跟踪 匀速和静止两种状态 问题说明： 初始值的设置很重要，如果估计的初值和真实的初始相差很大，则无法跟踪，当然相应地增加粒 子数目能改善结果。 由于产生随机噪声作为阈值，因此每次的跟踪的结果不稳定。
English Description：
Particle filter for target tracking Uniform and still two States Problem description: The initial value of the setting is very important, if the estimated initial value and real initial varies, you cannot track, of course, a corresponding increase in grain Number can improve the results. Due to random noise generated as the threshold, so every time you track results are not stable.