基于FPGA的RS纠错码信息隐藏研究与实现  

Research and Realization of RS Error-correcting Code Information Hiding Based on FPGA

作　　者：李羚梅[1] 张鹏泉[1] 刘博 范玉进 曹晓冬[1] LI Ling-mei;ZHANG Peng-quan;LIU Bo;FAN Yu-jin;CAO Xiao-dong(TOEC Technology Co., Ltd, Tianjin 300211 China)

机构地区：[1]天津光电通信技术有限公司,天津300211

出　　处：《科技创新与生产力》2017年第11期103-105,共3页Sci-tech Innovation and Productivity

摘　　要：为了提供信息隐藏技术的解决方案,简要介绍了建立在伽罗华域上的RS纠错码算法。笔者以RS(255,223)为例,提出了一种实现复杂度低、效率高的RS编译码器实现电路,在Spartan6 FPGA芯片上实现了RS码的编码与译码,且算法参数可配置,能够实现多种码型的RS纠错码。通过分析讨论伴随式计算模块、BM迭代算法、Chien搜索算法及其实现电路,详细阐述了RS码的编码原理、译码原理及实现。经过仿真测试可知,RS码的译码结果能够纠正之前加入的误码,且与Matlab仿真软件仿真结果相比数据一致,证明译码正确。RS纠错码算法提高了有效信息传输的可靠性,提供了信息隐藏的高效算法,可广泛应用于无线通信等领域。In order to provide the solution of information hiding technology,the RS error-correcting code algorithm based on the Galois Field is introduced.Taking RS(255,223)as an example,this paper presents a low complexity and high efficiency RS code circuit,and the encoding and decoding of RS code are implemented on spartan6F PGA chip.It analyses syndrome computation module,BM iterative algorithm,Chien search algorithm and their implement circuit,describes the principles of encoding and decoding and their realization.The simulation test shows that the decoding results of RS code can correct the error code and the data are consistent with the simulation results of Matlab simulation software.RS error-correcting code algorithm improves the reliability of effective information transmission,provides efficient algorithm for information hiding,and it can be widely used in wireless communication and other fields.

关 键 词：信息隐藏 RS码 伴随式 BM算法 Chien搜索 

分 类 号：TN918.3[电子电信—通信与信息系统] O153.4[电子电信—信息与通信工程]