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An algorithm for the design of multiplierless two-channel perfect reconstruction orthogonal lattice filter banks (CROSBI ID 496770)

Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija

Yli-Kaakinen, Juha ; Saramäki, Tapio ; Bregović, Robert An algorithm for the design of multiplierless two-channel perfect reconstruction orthogonal lattice filter banks // Proceedings of the First International Symposium on Control, Communications and Signal Processing. Tampere: Tampere University of Technology, 2004. str. 415-418-x

Podaci o odgovornosti

Yli-Kaakinen, Juha ; Saramäki, Tapio ; Bregović, Robert

engleski

An algorithm for the design of multiplierless two-channel perfect reconstruction orthogonal lattice filter banks

This paper describes an algorithm for designing multiplierless two-channel perfect-reconstruction (PR) orthogonal lattice filter banks. The advantage of the lattice implementation is that the PR property is structurally ensured even after quantizing the coeficients into very simple representation forms. The coeficient optimization is performed in three basic stages. First, a simple design scheme is used for generating an initial solution for further optimization. Second, this initial solution is used as a start-up solution for the non-linear optimization algorithm being employed for determining a parameter space of the ininite-precision coeficients including the feasible space where the filter bank meets the given criteria. The third step involves finding the coeficients in this space so that the resulting filter bank meets the given criteria with simple coeficient representation forms. An example taken from the literature illustrates that the proposed algorithm results at least in a good suboptimal finite-precision solution in a fairly short time.

Two-channel filter banks; Perfect-reconstruction; Lattice structure

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Podaci o prilogu

415-418-x.

2004.

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objavljeno

Podaci o matičnoj publikaciji

Proceedings of the First International Symposium on Control, Communications and Signal Processing

Tampere: Tampere University of Technology

Podaci o skupu

First International Symposium on Control, Communications and Signal Processing

predavanje

21.05.2004-24.05.2004

Hammamet, Tunis

Povezanost rada

Elektrotehnika