无线电工程Issue(5)：28-30,65,4.DOI:10.3969/j.issn.1003-3106.2015.05.08
基于近似线性 MMSE 的频域 Turbo 均衡算法研究
Research on Turbo Equalization Algorithm in Frequency Domain Based on Approximate Linear MMSE
摘要
Abstract
Turbo equalization extends the idea of iterative decoding in Turbo code to channel equalization,which can achieve bet⁃ter anti⁃multipath performance than traditional equalization process through iterative exchange of soft information between channel equal⁃izer and decoder. To overcome the high complexity of Turbo equalization in practice, a Turbo equalization algorithm based on approximate linear MMSE is introduced. This algorithm avoids highly complicated matrix inversion process by transforming channel equalization based on MMSE criterion to frequency domain using FFT.The results of simulation indicate that,as compared with linear Turbo equalization,this algorithm can achieve better anti⁃multipath performance with lower complexity in time⁃invariant multipath chan⁃nels.关键词
Turbo 均衡/最小均方误差/迭代/多径信道Key words
Turbo equalization/MMSE/iteration/multipath channel分类
信息技术与安全科学引用本文复制引用
邓晓平,申建平,桑会平,马路娟..基于近似线性 MMSE 的频域 Turbo 均衡算法研究[J].无线电工程,2015,(5):28-30,65,4.基金项目
河北省教育厅自然科学基金资助项目（QN2014071）；河北师范大学自然科学科研基金项目计划资助项目（L2013B15）． （）
