多目标跟踪的粒子滤波器，均值便宜跟踪的示例，供做算法研究人员参考，pwm整流器的建模仿真，应用小区域方差对比，程序简单，对于初学者具有参考意义。- Multi-target tracking particle filter, Example tracking mean cheap, Algorithm for researchers to do reference, Modeling and simulation pwm rectifier Application of small area variance comparison, simple procedures, For beginners with a reference value.