Filter-bank-based narrowband interference detection and suppression in spread spectrum systems

被引：16
|
作者：
Stitz, TH [1 ]
Renfors, M [1 ]
机构：
[1] Tampere Univ Technol, Inst Commun Engn, Tampere 33101, Finland
来源：
EURASIP JOURNAL ON APPLIED SIGNAL PROCESSING | 2004年 / 2004卷 / 08期
关键词：
narrowband interference cancellation; complex PR filter banks; DS-SS;
D O I：
10.1155/S1110865704312102
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：
A filter-bank-based narrowband interference detection and suppression method is developed and its performance is studied in a spread spectrum system. The use of an efficient, complex, critically decimated perfect reconstruction filter bank with a highly selective subband filter prototype, in combination with a newly developed excision algorithm, offers a solution with efficient implementation and performance close to the theoretical limit derived as a function of the filter bank stopband attenuation. Also methods to cope with the transient effects in case of frequency hopping interference are developed and the resulting performance shows only minor degradation in comparison to the stationary case.
引用
收藏
页码：1163 / 1176
页数：14
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