信道编码盲识别及其相关技术研究进展

Research Progress of Blind Recognition of Channel Coding and Related Techniques

随着信道编码技术的广泛应用，其识别技术在智能通信、信息截获、信息对抗等领域的重要作用日益突出。文章首先对现代数字通信系统使用的卷积码、BCH码、RS码等信道编码盲识别算法以及信道编码中涉及到的帧同步、交织技术的盲识别算法进行了总结，然后从计算量和误码适应能力两个方面分析了算法的优缺点。最后，针对目前的研究现状和实际需求，指出了下一步的研究方向。

As the channel coding techniques is widely used, blind recognition of channel coding plays an important role in the fields of intelligence communication, information interception and information countermeasure. Firstly, the recognition algorithms of convolution code, BCH code, RS code and the related frame synchronization code, interleaving techniques which are commonly used in modem digital communication systems are summarized. Then the computational complexity and performances in noisy environment of the algorithms are analyzed. Finally, the future of blind recognition of channel coding is pointed out based on the shortcoming of current algorithms and practical need.