包括最小二乘法、SVM、神经网络、1_k近邻法,搭建OFDM通信系统的框架，合成孔径雷达（SAR)目标成像仿真，信号处理中的旋转不变子空间法，主要为数据分析和统计。- Including the least squares method, the SVM, neural networks, 1 _k neighbor method, Build a fr a mework OFDM communication system, Synthetic Aperture Radar (SAR) imaging simulation target, Signal Processing ESPRIT method, Mainly for data analysis and statistics.