信道仿真 ........\channel.m ........\circonv.m ........\ClarkeModel.m ........\demodulation.m ........\devi.m ........\f2t.M ........\Gngauss.m ........\modulation.m ........\ofdm_awgn_ray_union.m ........\PDFTEST.m ........\Qfunct.m ........\qpsk.m ........\qpsk_awgn.m ........\t2f.M