Paraunitary matrices and group rings
Barry Hurley, Ted Hurley · DOAJ (DOAJ: Directory of Open Access Journals) · 2014
Design methods for paraunitary matrices from complete orthogonal sets of idempotents and related matrix structuresare presented. These include techniques for designing non-separable multidimensional paraunitary matrices. Properties of the structures are obtained and proofs given. Paraunitary matrices play a central role in signal processing, inparticular in the areas of filterbanks and wavelets.