粒子滤波的重要性是不言而喻的。它不仅能处理高斯线性的还能处理非高斯非线性的。本程序是另一个版本的matlab代码的第二部分。-The importantce of particle filter is obvious. It can process not only linear gaussian system but also nonliear system. This is another version matlab source of particle filter and is the