Wireless Personal Communications: An International Journal
Multirate Signal Processing for Communication Systems
Multirate Signal Processing for Communication Systems
A New Multistage Comb-Modified Rotated Sinc (RS) Decimator with Sharpened Magnitude Response
IEICE - Transactions on Information and Systems
Software radio: a modern approach to radio engineering
Software radio: a modern approach to radio engineering
An economical class of droop-compensated generalized comb filters: analysis and design
IEEE Transactions on Circuits and Systems II: Express Briefs
Application of filter sharpening to cascaded integrator-combdecimation filters
IEEE Transactions on Signal Processing
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
Sample rate conversion for software radio
IEEE Communications Magazine
A PC-based software receiver using a novel front-end technology
IEEE Communications Magazine
The software radio architecture
IEEE Communications Magazine
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In this paper, we present a class of low-complexity decimation filters for oversampled discrete-time signals. The proposed class of filters improves the frequency response of classical comb filters in two respects. First, it introduces extra-attenuation around the so-called folding bands, i.e., frequency intervals whose spurious signals are folded down to baseband during the decimation process. Second, this class reduces the passband distortion via an effective droop-compensator block, thus increasing the passband of the decimation filters. Like comb filters, the proposed class can be realized through multiplierless architectures, which are also discussed thoroughly in the paper. Unlike comb filters, the proposed filters have superior spurious signal rejection and a greatly reduced droop in the signal passband. These features make the proposed filters suitable for multistage decimation applications, such as reconfigurable software radio receivers, as well as for decimating oversampled digital signals produced by @S@D A/D converters. The paper discusses several useful techniques for designing the proposed filters in a variety of architectures with emphasis on non-recursive architectures. Design examples are discussed to highlight the key frequency features along with implementation issues aimed at reducing the computational complexity of the filters.