ofdm系统仿真 含16qam调制 fft 加窗 加cp等模块，单径或多径瑞利衰落信道仿真，包括邓氏关联度、绝对关联度、斜率关联度、改进绝对关联度。- ofdm system simulation including 16qam modulation fft windowing modules plus cp, Single path or multipath Rayleigh fading channel simulation, Including Deng s correlation, ab