包括最小二乘法、SVM、神经网络、1_k近邻法,GSM中GMSK调制信号的产生，借鉴了主成分分析算法（PCA）。- Including the least squares method, the SVM, neural networks, 1 _k neighbor method, GSM is GMSK modulation signal generation, It draws on principal component analysis algorithm (PCA).