数字基带传输系统 代码 眼图 误码率 a=0.5 tao=Ts/2 phi=0。信噪比15，采样偏差0，滚余弦系数0.5，占空比0.5，-Digital baseband transmission system bit error rate of the code eye diagram a = 0.5 Tao = Ts/2 phi = 0. Signal-to-noise ratio 15, the sampling deviation, roll cosine coefficient

16QAM simulation. The entire process includes the generation of the 16QAM constellation and the waveform signal in complex base band, the upconverting to passband, pass through AWGN channel, demodulation with a Matched Filter, detection using the sof