为了改善数字通信系统的传输质量，提高数字通信系统传输的可靠性引入信道编码。信道编码是扩频通信的关键技术之一，是解决信号在信道中无差错传输的技术。-In order to improve the transmission quality and reliability of the digital communication system, channel coding is proposed. Channel Encoding technology is one of the key techn