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Designing optimal perfect-reconstruction (PR) and near PR (NPR) cosine-modulated filter banks is essentially a constrained nonlinear minimization problem. This paper proposes two second-order cone-programming based algorithms for designing NPR and practically PR cosine-modulated filter banks with improved performance relative to several established design methods.
Circuits and Systems I: Regular Papers, IEEE Transactions on (Volume:51 , Issue: 3 )
Date of Publication: March 2004