中文说明：包括压缩比、运行时间和计算复原图像的峰值信噪比,有较好的参考价值，音频信号通过LM386放大，利用最小二乘算法实现对三维平面的拟合，大学数值分析算法，包含特征值与特征向量的提取、训练样本以及最后的识别。
English Description：
Including the compression ratio, running time and calculate the peak signal to noise ratio of image, good references, audio signals through the LM386 amplifier using least square fitting algorithm for three dimensional plane, numerical analysis algorithm of the University, contains the eigenvalues and eigenvectors of extraction, and, finally, the recognition of training samples.