The GenLOT: generalized linear-phase lapped orthogonal transform

  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},
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
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