无论是那种编码方式，在AWGN信道中的性能都明显由于在瑞利衰减信道中的性能。这一点也符合实际。毕竟AWGN信道是瑞利衰减信道的特殊情况。除此之外，在研究单一编码方式误码率时，样本帧数越大，则得到的误码率曲线就越平滑，较少出现较明显的凸起。(Either way, the performance in AWGN channel is obviously due to the performance in Rayleigh attenuation channel. This is also in line with reality. After all, AWGN channel is a special case of Rayleigh attenuation channel. In addition, the larger the number of sample fr a mes, the smoother the BER curve will be, and less prominence will appear when studying the BER of a single encoding mode.)