Title
An Economical Class of Droop-Compensated Generalized Comb Filters: Analysis and Design
Publication Date
4-1-2010
Document Type
Article
Abstract
In this brief, we address the design of economical recursive generalized comb filters (GCFs) by proposing an efficient technique to quantize the multipliers in the z -transfer function employing power-of-2 (PO2) terms. GCFs are efficient anti-aliasing decimation filters with improved selectivity and quantization noise rejection performance around the so-called folding bands with respect to classical comb filters. The proposed quantization technique guarantees perfect pole-zero cancelation in the rational z-transfer function of the GCFs, thus totally avoiding instability problems. Moreover, we propose the use of a simple droop compensator for the sake of recovering the passband droop distorting the useful digital signal in the baseband. A design example is proposed with the aim of showing the application of the proposed technique, and a practical architecture of a sample third-order GCF is discussed.
Publication Title
IEEE Transactions on Circuits and Systems II: Express Briefs
Volume
57
Issue
4
First Page
275
Last Page
279
DOI
10.1109/TCSII.2010.2043469
Publisher Policy
pre-print, post-print
Recommended Citation
Laddomada, Massimiliano and Dolecek, G. J., "An Economical Class of Droop-Compensated Generalized Comb Filters: Analysis and Design" (2010). School of Engineering and Technology Publications. 173.
https://digitalcommons.tacoma.uw.edu/tech_pub/173
