BLIND ADAPTATION OF DECISION-FEEDBACK EQUALIZERS - GROSS CONVERGENCE PROPERTIES

被引:12
作者
KENNEDY, RA
ANDERSON, BDO
BITMEAD, RR
机构
[1] AUSTRALIAN NATL UNIV, FAC ENGN, DEPT ENGN, CANBERRA, ACT 0200, AUSTRALIA
[2] AUSTRALIAN NATL UNIV, RES SCH PHYS SCI & ENGN, DEPT SYST ENGN, CANBERRA, ACT 0200, AUSTRALIA
关键词
BLIND ADAPTIVE EQUALIZATION; BLIND DECISION FEEDBACK EQUALIZATION;
D O I
10.1002/acs.4480070603
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
An analysis of the stochastic dynamics of the blind adaptation of decision feedback equalizers is presented. The analysis accounts for the presence of decision errors which, under feedback, are propagated. A number of blind algorithms are presented and a theory is developed to ''plain gross convergence properties observed through simulations. The possibility of and mechanism behind undesirable local minima are highlighted and a detailed case study is given. The potential capture by local minima shows the importance of good initialization. These results superficially resemble those obtained for blind adaptation applied to linear equalizers.
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页码:497 / 523
页数:27
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