飞思卡尔MC9S12XS128之锁相环PLL 单片机 三 272011通过设置XS128的锁相环，可以方便改变内部总线频率，轻松实现超频。下面是16MHz~120MHz的设置函数，后面有各寄存器用法。-The phase-locked loop PLL chip Freescale MC9S12XS128 three 272,011 PLL by setting the XS128, you can easily change the internal bus frequency, easy

粒子滤波在无线传感器网络中的应用，与卡尔曼滤波相比较，具有优势。-Particle filter in the wireless sensor network applications, compared with the Kalman filter, has an advantage.

利用克鲁斯卡尔算法计算最小生成树,以文本形式输出生成树中各条边以及他们的权值。-Using Kruskal minimum spanning tree algorithm to output text in the spanning tree edges and their weights.