解决三维时域有限差分法的matlab代码，有动画效果，可以清晰的观察到波动情况-To solve the three dimensional finite difference time domain method of matlab code, and animation effects, can be clearly observed volatility

奇异值差分理论，对输入的信号矩阵化，并对矩阵进行奇异值分解，完成对信号的分析和处理-Singular value differential theory, the matrix of the input signal, and the matrix singular value decomposition, the completion of signal analysis and processing