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Chromatic derivative filter banks

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3 Author(s)
Narasimha, M. ; Dept. of Electr. Eng., Stanford Univ., CA, USA ; Ignjatovic, A. ; Vaidyanathan, P.P.

A new contribution to generalized sampling of bandlimited signals based on the so-called chromatic derivative operators was recently introduced by Ignjatovic (see Kromos Technology, Los Altos, CA. [Online] Tech. Rep. 1, 2001). Chromatic derivatives are linear combinations of the ordinary derivatives, where the coefficients of the combination are derived from orthogonal polynomial theory. This article describes the connection between these operators and the well-established ideas of perfect reconstruction and biorthogonality in analog filter banks.

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Signal Processing Letters, IEEE  (Volume:9 ,  Issue: 7 )