Novel droop-compensated comb decimation filter with improved alias rejections

被引:26
作者
Jovanovic Dolecek, Gordana [1 ]
Fernandez-Vazquez, Alfonso [2 ]
机构
[1] Inst INAOE, Dept Elect, Puebla 72740, Mexico
[2] Natl Polytech Inst, Sch Comp Engn, Mexico City 07738, DF, Mexico
关键词
Decimation; Comb filter; CIC structure; Frequency sampling; IFIR; DESIGN;
D O I
10.1016/j.aeue.2012.10.010
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
This paper presents a novel two-stage comb decimator with the improved magnitude characteristic. Simple multiplierless corrector filters, which are designed using the frequency sampling and IFIR methods, are introduced. The proposed filters compensate the comb passband droop in the wideband passband region and increase the attenuations in the folding bands. Using the multirate identity the filters may be moved to a lower rate. The filter design depends only on the number of the cascaded comb filters and do not depend on the decimation factor M. (C) 2012 Elsevier GmbH. All rights reserved.
引用
收藏
页码:387 / 396
页数:10
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