独立成分分析算法降低原始数据噪声，实现了图像的加水印，去噪，加噪声等功能，用谱方法计算流体力学一些流动现象的整体稳定性。- Independent component analysis algorithm reduces the raw data noise, Realize image watermarking, de-noising, plus noise and other functions, Spectral methods of computational fluid dynamic