包括最小二乘法、SVM、神经网络、1_k近邻法,基于kaiser窗的双谱线插值FFT谐波分析，基于负熵最大的独立分量分析。- Including the least squares method, the SVM, neural networks, 1 _k neighbor method, Dual-line interpolation FFT harmonic analysis kaiser windows, Based on negative entropy largest indepen