ofdm系统仿真 含16qam调制 fft 加窗 加cp等模块，计算十字叉丝的在不同距离的衍射图像,GPS和INS组合导航程序。- ofdm system simulation including 16qam modulation fft windowing modules plus cp, Calculation crosshairs diffraction image at different distances, GPS and INS navigation program.