一个师兄的毕设，包括最小二乘法、SVM、神经网络、1_k近邻法,分析了该信号的时域、频域、倒谱，循环谱等。- A complete set of brothers, Including the least squares method, the SVM, neural networks, 1 _k neighbor method, Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc.