用matlab实现的GSM TCH/FS系统在高斯信道、瑞利信道的性能仿真，其中用到了循环编码、卷积码、交织码等信道编码知识-Using matlab to achieve GSM TCH/FS system in the Gaussian channel, Rayleigh channel performance simulation, which uses a loop encoding, convolutional codes, interleaving codes channel cod