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Applications Of Lattice Filters To Quadrature Mirror Filter Banks, Gregory R. Jaspers
Applications Of Lattice Filters To Quadrature Mirror Filter Banks, Gregory R. Jaspers
Retrospective Theses and Dissertations
Presented is a method for designing and implementing lattice filters to be used in Quadrature Mirror Filter (QMF) Banks. Quadrature Mirror Filter Banks find use in applications where a signal must be spilt into subbands operated on then reconstructed in the output. Because of their structure, lattice filters do this very well and allow perfect reconstruction, even when the lattice coefficients must be quantized. In this paper QMF's and Lattice Filters are derived and analyzed. Application of the lattice filter is presented along with a design program and example of its use to implement a QMF. The computer aided design …