Discrete wavelet transform apparatus for lattice structure

摘要

A discrete wavelet transform apparatus for a lattice structure is disclosed. This apparatus includes first through M-th lattice lattices installed in series along the length of a selected filter and each having an upper signal path and a lower signal path for supplying an output of the discrete wavelet transform apparatus, a data form transform unit for converting the form of the input signal and supplying to the first lattice stage, and a delay control unit connected between the lattice stages for thereby simplifying the hardware structure and implementing a scalable characteristic with respect to the different resolution levels and different filter lengths.