电光与控制, 2012, 19 (11): 84, 网络出版: 2012-11-07
级联编码在地空数据链信道编码中的应用研究
Channel Coding of Data Link Based on Concatenated Coding
地空通信 数据链 信道编码 喷泉码 重复累加码 级联 ground-air communication data link channel encoding fountain code repeat accumulate code concatenation
摘要
为了克服传统信道编码方式的缺点,提高地空数据链信道传输的可靠性和传输效率,同时降低信道编码的复杂度,采用了级联编码的方法,将重复累加码与喷泉码进行级联后,应用到地空通信数据链信道编码当中。首先阐述了重复累加码、喷泉码的基本原理和编解码方法,重点介绍了两种码的级联方法,并通过实验进行了论证和比较,实验证明,通过级联方式编码后,数据链信道的误帧率明显降低,通信效果得到明显改善。研究结果表明,级联编码方法不仅能充分发挥喷泉码的特点,而且无线数据传输的可靠性得到明显改善。
Abstract
In order to overcome the traditional shortcomings of the channel coding and improve the transmission reliability and efficiency of ground-air data link channel while reducing the complexity of channel codingthe method of concatenate encoding was applied in the ground-air data link channel coding.Firstthe basic principles and methods of encoding and decoding for the repeat accumulate codes and fountain codes were described.Thenthe concatenating methods for two kinds of code were introducedwhich were demonstrated by experiments.The experiments showed thatthrough the concatenated encodingthe frame error rate of data link channel was reduced significantlyand the communication effect was improved greatly.The result of study shows that the concatenate encoding method can not only give full play to the characteristics of fountain codesbut also improve the reliability of wireless data transmission significantly.
董俊, 蒲秀英, 刘东平, 姬厚涛. 级联编码在地空数据链信道编码中的应用研究[J]. 电光与控制, 2012, 19(11): 84. DONG Jun, PU Xiuying, LIU Dongping, JI Houtao. Channel Coding of Data Link Based on Concatenated Coding[J]. Electronics Optics & Control, 2012, 19(11): 84.