说明：  包括最小二乘法、SVM、神经网络、1_k近邻法,matlab小波分析程序，验证可用，是学习PCA特征提取的很好的学习资料，可以得到很精确的幅值、频率、相位估计，包括面积、周长、矩形度、伸长度。
(Including the least squares method, the SVM, neural networks, 1 _k neighbor method, matlab wavelet analysis program, Verification is available, Is a good learning materials to learn PCA feature extraction, You can get a very accurate amplitude, frequency, phase estimation, Including the area, perimeter, rectangular, elongation.)