一种抗强干扰的纠错码研究  

Research on an Error-Correcting Code to Overcome Strong Interference

作　　者：陈志勇 龙华 刘海峰 CHEN Zhiyong;LONG Hua;LIU Haifeng(No.722 Research Institute of China State Shipbuilding Corporation Limited,Wuhan 430079)

机构地区：[1]中国船舶集团有限公司第七二二研究所,武汉430079

出　　处：《舰船电子工程》2022年第6期64-68,共5页Ship Electronic Engineering

摘　　要：针对强干扰信道条件下密码可靠同步传输问题,研究基于线性移位寄存器序列的纠错码,给出了其编码方法及快速哈达玛变换译码算法,并对该编码的纠错能力进行了分析,推导出同步码可靠传输的概率计算公式。假定信道误码率为0.05、0.1、0.15条件下,将该纠错码与RS码、重复码进行比较研究,当码率相当时,传输可靠性更高。When the communication channel encounters strong interference,reliable transmission of the synchronization codes will become a tough issue.To resolve this problem for practical applications,a scheme of error-correcting code is proposed based on linear feedback shift register.The encoding method has been designed with a fast Hardmard transform decoding algorithm.To ana⁃lyze the ability of our scheme,the probability formula is given out for the accurate transformation of the synchronization code.Then,a comparison is drawn between this scheme,Reed-Solomoncode,and repeating code when the error rate is predetermined at the val⁃ue of 0.05,0.1,0.15.The results of the theoretical calculation and experimental verification demonstrates that the scheme will ac⁃quire better performance of error-correcting ability and transformation accuracy under a relatively high channel error rate.

关 键 词：误码率 纠错码 快速哈达玛变换 同步码 

分 类 号：TN918.4[电子电信—通信与信息系统]