Design of practically perfect-reconstruction cosine-modulated filter banks: a second-order cone programming approach
Wu-Sheng Lu, T. Saramäki, Robert Bregović · IEEE Transactions on Circuits and Systems I Regular Papers · 2004
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.