Generalised lapped orthogonal transforms
Ricardo Lopes de Queiroz, Truong Q. Nguyen, K.R. Rao · Electronics Letters · 1994
A class of linear-phase paraunitary filter banks is developed, possessing fast implementation algorithms based on the discrete cosine transform. In this formulation, the lapped orthogonal transform is a particular case which was extended to accommodate the overlap of any number of blocks. Optimised design examples are presented.