PSTD算法的matlab代码 计算二维空间 大尺寸下优于FDTD算法，速度优势随维数平方增长-PSTD algorithm matlab code FDTD algorithm is superior to the large size of the two-dimensional space, the speed advantage of growth with the square of the number of dimensions

PSTD程序 已配置PML边界匹配条件，良好吸收回波，克服快速傅里叶变换造成的周期边界错误。-PSTD program is configured to match the PML boundary conditions, good to absorb echoes overcome periodic boundary error caused by fast Fourier transform.