基于广义码重分布的交织类型盲识别研究  

Recognition of Interleaving Style Based on Generalized Code Weight Distribution

作　　者：廖斌[1] 张玉[1] 杨晓静[1] 

机构地区：[1]解放军电子工程学院,合肥230037

出　　处：《火力与指挥控制》2014年第7期10-13,共4页Fire Control & Command Control

基　　金：国家自然科学基金(61291379);安徽省自然科学基金资助项目(1208085QF103)

摘　　要：针对非协作通信领域中交织序列的交织类型识别问题,在对低码率线性分组码的分组交织和卷积交织序列进行深入分析的基础上,基于广义的码重分布法首次解决了截获序列的交织类型盲识别问题。该方法首先对截获序列按不同长度进行分组计算码重,利用分组交织和卷积交织后序列的不同码重分布特性,进一步计算广义码重分布距离来区分序列的交织类型。仿真结果表明该方法能快速识别交织类型,并具有较好的容错性能。To Solve the style recognition of the intercepted interleaving sequence in the non- cooperative context, the characteristics of the block interleaving sequence and convolutional interleaving sequence based on low rate linear block codes are studied,then at first the blind recognition of the style of the intercepted interleaving sequence by used of generalized code weight distribution. The scheme arrangeds the intercepted interleaving sequence by different lengths firstly,then uses the code weight distribution of block interleaving and convolutional interleaving,finally the generalized code weight distance to distinguish the style is computed. The simulation showsd this scheme could distinguish the style quickly,it still have a good performance at high BER.

关 键 词：非协作通信 分组交织 卷积交织 线性分组码 盲识别 

分 类 号：TN919.3[电子电信—通信与信息系统]