实现用SDRAM运行nios，同时用SRAM保存摄像头数据，用MATLAB实现的压缩传感，一个计算声子晶体结构的一维传递矩阵法。- Implemented with SDRAM run nios, while saving camera data SRAM, Using MATLAB compressed sensing, A one-dimensional transfer matrix method to calculate the phonon crystal structure.