数据采集与处理2016，Vol.31Issue(5)：1059-1066,8.DOI:10.16337/j.1004-9037.2016.05.025
基于信道相关性的半盲信道辨识算法
Cross-Relation-Based Semi-blind Channel Identification Method
白曜铭 1蒋建中 1刘世刚 1孙有铭1
作者信息
- 1. 解放军信息工程大学信息系统工程学院，郑州，450002
- 折叠
摘要
Abstract
Most of blind channel identification algorithms cannot estimate the channel with common zeros and they are sensitive to the channel order error.Here,this paper proposes a new cross-relation-based semi-blind channel identification method.The algorithm uses the output data structure correlation matrix W and builds a linear system of equations based on the orthogonal relationship between matrix W and channel vector.Some known symbols are utilized based on MLS criterion to build other equations.The closed form solution of channel response is derived by the least-square method.The proposed algorithm effectively overcomes many limitations of blind channel identification algorithms,avoids the selection of optimal weighted parameter that commonly appears in the traditional semi-blind methods with strong ro-bustness to channel noise and channel order.Simulation results verify the effectiveness and superiority of the proposed algorithm.关键词
半盲信道辨识/单输入多输出/已知符号/二阶统计量/公零点Key words
semi-blind channel identification/single-input multiple-output (SIMO )/known symbols/second-order statistics/common zeros分类
信息技术与安全科学引用本文复制引用
白曜铭,蒋建中,刘世刚,孙有铭..基于信道相关性的半盲信道辨识算法[J].数据采集与处理,2016,31(5):1059-1066,8.
