Design of 2-D digital filters with octagonal passband and stopband boundaries

Author

Shpak, Dale J. ; Antoniou, Andreas

Author_Institution

Dept. of Eng., R. Roads Mil. Coll., Victoria, BC, Canada

Volume

38

Issue

12

fYear

1991

fDate

12/1/1991 12:00:00 AM

Firstpage

1534

Lastpage

1542

Abstract

A method for the design of 2-D digital filters with octagonal passband and stopband boundaries is described. The method involves cascading four 1-D FIR (finite impulse response) or IIR (infinite impulse response) digital filters. Consequently, it is easy to apply and leads to fast, economical, and efficient designs. By choosing appropriate passband- and stopband-edge frequencies for the 1-D filters, 2-D filters with approximately circular or elliptical passband and stopband boundaries can readily be designed. Additionally, it is possible to realize causal 2-D IIR filters with linear-phase passbands by using 1-D IIR filters having linear-phase passbands

Keywords

band-pass filters; cascade networks; two-dimensional digital filters; 2D digital filters; FIR; IIR; cascade networks; causal filters; circular boundaries; elliptical boundaries; linear-phase passbands; octagonal boundaries; passband boundaries; passband-edge frequencies; stopband boundaries; stopband-edge frequencies; Band pass filters; Design methodology; Design optimization; Digital filters; Finite impulse response filter; Frequency domain analysis; IIR filters; Matrix decomposition; Passband; Two dimensional displays;

fLanguage

English

Journal_Title

Circuits and Systems, IEEE Transactions on

Publisher

ieee

ISSN

0098-4094

Type

jour

DOI

10.1109/31.108506

Filename

108506