声波，2维，逆时偏移程序.由于实现2维声波逆时偏移。包含参数卡文件，主程序以及Makfile文件。-reverse time migration for 2D acoustic wave. include parameter file ,main program and Makefile

利用MATLAB编程，根据级配参数，在指定区域内进行三维石头的重构与投放。结果写入stl文件，后续可视化操作可在逆向工程软件Geomagic中处理。-Using MATLAB programming, according to grading parameters, the three-dimensional reconstruction of the stone and served in the designated area. Results are written stl file, s

主要包括三相异步电机的反转程序，通过示波器可观察电机反转时转速、转矩情况。记得要改仿真路径！-Including three-phase asynchronous motors reverse procedure can be observed through the oscilloscope reverse motor speed, torque situation. Remember to change the path simulation!