Constant modulus semi-blind space-time equalizer based on structure risk minimum criterion

被引：0
|
作者：
毛忠阳 [1 ]
王红星 [1 ]
宋恒 [1 ]
李军 [1 ]
机构：
[1] Department of Electronic Information Engineering,Naval Aeronautical and Astronautical University
来源：
Journal of Beijing Institute of Technology | 2013年 / 22卷 / 04期
基金：
中国国家自然科学基金;
关键词：
equalization; space-time filter; capability control; semi-blind; constant modulus;
D O I：
10.15918/j.jbit1004-0579.2013.04.007
中图分类号：
TN715 [均衡器、衰减器（衰耗器）];
学科分类号：
080902 ;
摘要：
A new adaptive filtering principle based on capability control and semi-blind method is presented.A new semi-blind space-time equalizer based on constant modulus characteristic and structure risk minimum(SRM)criterion is also proposed.The equalizer sufficiently exploits the learning information of communication signals by using the structure information of filter itself through capability control technique.Namely,it maximizes the amount of learning information to improve filter tracking performance. Simulations are carried out and the result is compared with that of typical recursive least squares space-time equalizer(RLS-STE)and constant modulus semi-blind space-time equalizer(CM-SB-STE).The results show that,even if with insufficient training data,the SRM constant modulus semi-blind space-time equalizer(SCM-SB-STE)keeps good tracking performance,showing promises in mobile wireless communications.
引用
收藏
页码：536 / 543
页数：8
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