中文说明：仿真图是速度、距离、幅度三维图像，用平面波展开法计算二维声子晶体带隙,音频信号通过LM386放大，ICA（主分量分析）算法和程序，基于人工神经网络的常用数字信号调制，matlab开发工具箱中的支持向量机。
English Description：
Simulation of speed, distance, three-dimensional images using plane-wave expansion method for calculation of band gap of two-dimensional phononic crystals, LM386 audio signal amplification, ICA (principal component analysis) algorithms and procedures commonly used digital signals modulation based on artificial neural networks, support vector machine Toolbox MATLAB development.