An improved method for the design of 2-D FIR digital filters with circular and rectangular cut-off boundary using Kaiser window

Author

Ahmadi, Mahdi ; Chottera, A.

Author_Institution

Dept. of Electrical Engng., Univ. of Windsor, Windsor, Ont., Canada

Volume

8

Issue

1

fYear

1983

Firstpage

3

Lastpage

8

Abstract

A minimax approach to the design of 2-D FIR digital filters is given. This method utilizes the well-known Fourier series method in conjunction with Kaiser window. A suitable non-linear optimization method for calculating the parameter α of the Kaiser window is used in order to minimize the maximum of error in the passband and stopband of the filter. This technique provides some improvement over the straightforward approach whereby α is calculated by the empirical formula of Kaiser. To illustrate the method, several examples of 2-D lowpass FIR digital filters with circular and rectangular cut-off boundary are given.

Keywords

low-pass filters; minimax techniques; series (mathematics); two-dimensional digital filters; 2-D FIR digital filters; Fourier series method; Kaiser window; circular cut-off boundary; design; low-pass filters; minimax approach; nonlinear optimisation method; passband; rectangular cut-off boundary; stopband; Algorithm design and analysis; Design methodology; Filtering algorithms; Finite impulse response filters; Passband; TV;

fLanguage

English

Journal_Title

Electrical Engineering Journal, Canadian

Publisher

ieee

ISSN

0700-9216

Type

jour

DOI

10.1109/CEEJ.1983.6591826

Filename

6591826