中文说明：
数字基带传输系统的MATLAB仿真实现，基带编码采用2B2T的编码方式，讨论了这种方式下系统的误码率及功率等。
English Description：
The MATLAB simulation of digital baseband transmission system is realized. The baseband coding adopts 2b2t coding mode. The bit error rate and power of the system under this mode are discussed