The GenLOT: generalized linear-phase lapped orthogonal transform

@article{Queiroz1996TheGG,
title={The GenLOT: generalized linear-phase lapped orthogonal transform},
author={Ricardo L. de Queiroz and Truong Q. Nguyen and K. Raghunath Rao},
journal={IEEE Trans. Signal Processing},
year={1996},
volume={44},
pages={497-507}
}

The general factorization of a linear-phase paraunitary filter bank (LPPUFB) is revisited. From this new perspective, a class of lapped orthogonal transforms with extended overlap (generalized linear-phase lapped orthogonal transforms (GenLOT’s)) is developed as a subclass of the general class of LPPUFB. In this formulation, the discrete cosine transform (DCT) is the order-1 GenLOT, the lapped orthogonal transform is the order-2 GenLOT, and so on, for any filter length that is an integer… CONTINUE READING