Iterative procedure for designing the GenLOT

Author

Nagai, Taknyuki ; Tsutsui, Shintaro ; Ikehara, Masaaki

Author_Institution

Fac. of Sci. & Technol., Keio Univ., Yokohama, Japan

Volume

4

fYear

1997

fDate

9-12 Jun 1997

Firstpage

2689

Abstract

In this research, we propose a new design method for the generalized linear-phase lapped orthogonal transforms (GenLOT). The GenLOT is based on the DCT and has fast implementation algorithm. Generally, the lattice structure is used for its design and implementation. Consequently, nonlinear optimization is required for its design process. In our proposed method, filter coefficients are optimized directly and this method requires one only to solve linear equations iteratively. Moreover, this algorithm converges within a few iterations

Keywords

band-pass filters; delay circuits; discrete cosine transforms; filtering theory; iterative methods; DCT; GenLOT; filter coefficients; generalized linear-phase lapped orthogonal transforms; implementation algorithm; iterative procedure; linear equations; nonlinear optimization; perfect reconstruction filter banks; Design methodology; Design optimization; Discrete cosine transforms; Equations; Filters; Iterative algorithms; Lattices; Optimization methods; Process design; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1997. ISCAS '97., Proceedings of 1997 IEEE International Symposium on

Print_ISBN

0-7803-3583-X

Type

conf

DOI

10.1109/ISCAS.1997.612879

Filename

612879