摘要
为解决数字通信系统中恶劣信道上信令传输的差错控制问题，分析了重发纠错和大数判决、ＢＣＨ码、ＧＯＬＡＹ码等几种前向纠错方法在恶劣信道上的检纠错能力和相应的信令传输性能，通过理论推导和数值计算，给出了一组典型数据和曲线，并对它们进行了比较。根据信令传输的特点和要求，指出恶劣信道上的差错控制必须把前向纠错和重发纠错相结合，并且采用码长较短的纠错编码。最后讨论这些信令传输方法可能的应用。
For error control of signaling transmission on noisy channels in digital communication systems, this paper analyzes the property of error correction by repetition, and that of forward error correction such as majority decision, BCH coding, GOLAY coding. The results show that these error control methods are not applicable separately, and must be combined to fit the demand of signaling transmission on noisy channels, and their codeword must be short. Some examples of combining error control are presented. Application of these signaling transmission methods is discussed.
出处
《清华大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
1997年第10期25-28,共4页
Journal of Tsinghua University(Science and Technology)
基金
国防预研项目
关键词
恶劣信道
纠错
差错控制
数字通信系统
信令传输
noisy channels
signaling
error detection
error correction
error control
bit error rate
