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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。
In order to solve the problem of error control of signaling transmission on harsh channels in digital communication system, the error correction ability of several forward error correction methods such as retransmission error correction, big number decision, BCH code and GOLAY code on harsh channels And the corresponding signaling transmission performance, a set of typical data and curves are given and compared by theoretical derivation and numerical calculation. According to the characteristics and requirements of signaling transmission, it is pointed out that error control on poor channel must combine forward error correction and retransmission error correction, and use error correction coding with short code length. Finally, discuss the possible applications of these signaling methods.