T/2 soft decision feedback blind equalizer

被引：0
|
作者：
Krstic, VR [1 ]
机构：
[1] Inst Mihajlo Pupin, YU-11000 Belgrade, Serbia Monteneg, Yugoslavia
来源：
TELSIKS 2003: 6TH INTERNATIONAL CONFERENCE ON TELECOMMUNICATIONS IN MODERN SATELLITE, CABLE AND BROADCASTING SERVICE, VOLS 1 AND 2, PROCEEDINGS OF PAPERS | 2003年
关键词：
blind equalizer; fractionally spaced; soft DFE;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
T/2 soft DFE is the based on idea of transforming a classical DFE to a cascade of uncoupled linear devices. The crucial component of this cascade is a white filter, which supplies the linear T/2 FSE with uncorrelated samples. The adaptive whiting of input sequence is controlled by a stochastic gradient algorithm based on Joint Entropy Maximization (JEM-W) criteria which introduces soft decision properties at the very beginning of blind equalization. Soft decisions probably smooth the error surface and allow the algorithm to escape from local minima.
引用
收藏
页码：759 / 762
页数：4
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