主要根据当前我国铁路发展的实际需要 ,针对国外数字轨道电路系统的基本原理 ,提出了MSK信号的一种新型的解码方案 .该方案实现起来简单、快速 ,在信号非冗余情况下 ,对译码结果能够实现一位自纠错功能 ,可以大大提高译码的正确率 . According to the current actual needs of China’s railway development, aiming at the basic principle of digital track circuit system in foreign countries, a new decoding scheme of MSK signal is proposed. This scheme is simple and fast to realize, in the case of non-redundant signal, The code result can realize a self-correcting error function, which can greatly improve the correctness of decoding.