Blind Adaptive Decision Feedback Equalization Algorithm Correct by Instantaneous Error

摘要：

Blind adaptive decision feedback equalization algorithm correct by instantaneous error was proposed in this paper. Decision feedback equalizer, including the composition of FIR filter and IIR filter, under the condition of complex multi-path transmission in digital communication, the signal from multi-path can either fall on FIR filter or IIR filter. when FIR filter has no enough length taps, the IIR filter would provide misinformation for updating the weights of equalizer. Instantaneous error can get from each iteration, if instantaneous error increase after one iteration, then keep the previous state of equalizer without feedback filter, otherwise, in accordance with the decision feedback equalization algorithm to update the equalizer weights. Furthermore, CMA and DD algorithm mode can switch according to the cumulative average of the instantaneous error. Simulation results show that the equalization performance is improved compare with the traditional blind decision feedback equalization algorithm.

关键词： digital communicaiton blind equalization deason feedback equalizer Instantaneous error

作者: Xiao Ying LI Chun-Jie

作者单位: College of Elearomechanical and Information Engineering Dalian Nationality University Dajian, China

会议类型: 国际会议

会议名称: 2010 2nd International Conference on Signal Processing System(2010年信号处理系统国际会议 ICSPS 2010)

会议地点: 大连

会议语种:英文

页码: 1449-1452

在线出版日期: 2010-07-05（万方平台首次上网日期，不代表论文的发表时间）