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2008

Hybrid Filter Banks With Fractional Delays: Minimax Design and Application to Multichannel Sampling

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Hybrid Filter Banks With Fractional Delays: Minimax Design and Application to Multichannel Sampling
This paper is motivated by multichannel sampling applications. We consider a hybrid filter banks consisting of a set of fractional delays operators, slow A/D converters with different antialiasing filters, digital expanders, and digital synthesis filters (to be designed). The synthesis filters are designed to minimize the maximum gain of a hybrid induced error system. We show that the induced error system is equivalent to a digital system. This digital system enables the design of stable synthesis filters using existing control theory tools such as model-matching and linear matrix inequalities. Moreover, the induced error is robust against delay estimate errors. Numerical experiments show the proposed approach yields better performance compared to existing techniques.
Ha Thai Nguyen, Minh N. Do
Added 16 Dec 2010
Updated 16 Dec 2010
Type Journal
Year 2008
Where TSP
Authors Ha Thai Nguyen, Minh N. Do
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