二维声波，用时域有限差分法计算固体声场，很好的初学者使用。-Dimensional sonic, finite difference time-domain method to calculate the solid sound field, good for beginners to use.

时域有限差分差分法仿真脉冲在真空以及有损耗和无损耗的介质的一维传播情况-FDTD simulation of a pulse

背景差分法，帧间差分法,可以有效基于视频序列检测出动态目标，实现有效检测-Inter frame difference and background difference moving target detection phase fusion under the opencv platform based on vc++6.0