Multirate systems and filter banks
Multirate systems and filter banks
Minimal block processing approach to fractional sample rate conversion
Signal Processing
Multirate Digital Signal Processing
Multirate Digital Signal Processing
Design of wideband CIC compensator filter for a digital IF receiver
Digital Signal Processing
A general method to design GCF compensation filter
IEEE Transactions on Circuits and Systems II: Express Briefs
Application of filter sharpening to cascaded integrator-combdecimation filters
IEEE Transactions on Signal Processing
Comb-Based Decimation Filters for A/D Converters: Novel Schemes and Comparisons
IEEE Transactions on Signal Processing
A novel two-stage nonrecursive architecture for the design of generalized comb filters
Digital Signal Processing
An improved class of multiplierless decimation filters: Analysis and design
Digital Signal Processing
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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.