A Fast Design Method for Perfect-Reconstruction Uniform Cosine-Modulated Filter Banks

作者：Doblinger Gerhard^*

来源：IEEE Transactions on Signal Processing, 2012, 60(12): 6693-6697.

DOI：10.1109/TSP.2012.2217139

• Cosine-modulated filter banks
• iterative quadratic programming
• perfect-construction filter banks
• second-order cone programming

In this correspondence, we present a new and fast design algorithm for perfect-reconstruction (PR), maximally decimated, uniform, cosine-modulated filter banks. Perfect reconstruction is obtained within arithmetic machine precision. The new design does not need numerical optimization routines and is significantly faster than a competing method based on second-order cone programming (SOCP). The proposed design algorithm finds the optimumsolution by iteratively solving a quadratic programming problem with linear equality constraints. By a special modification of the basic algorithm, we obtain PR filter banks with high stopband attenuations. In addition, fast convergence is verified by designing PR filter banks with up to 128 channels.

• 出版日期2012-12