DocumentCode :
1408315
Title :
Design of variable 2-D linear phase recursive digital filters with guaranteed stability
Author :
Deng, Tian-Bo
Author_Institution :
Dept. of Inf. Sci., Toho Univ., Chiba, Japan
Volume :
45
Issue :
8
fYear :
1998
fDate :
8/1/1998 12:00:00 AM
Firstpage :
859
Lastpage :
863
Abstract :
This paper proposes a new technique for designing variable two-dimensional (2-D) linear phase recursive digital filters, the stability of which is always guaranteed. The method finds each variable filter coefficient as a multidimensional (M-D) polynomial of a few parameters. The parameters specify different frequency responses, thus they are called the spectral parameters. In applying the resulting variable filters, substituting different spectral parameter values into the M-D polynomials will obtain different filter coefficients and, thus, different frequency responses. To guarantee the stability, we first perform denominator coefficient transformations such that they satisfy the stability conditions. Then, both denominator and numerator coefficients are determined as M-D polynomials
Keywords :
circuit stability; frequency response; network synthesis; polynomials; recursive filters; two-dimensional digital filters; denominator coefficient transformation; design; frequency response; multidimensional polynomial; numerator coefficient; spectral parameter; stability; variable two-dimensional linear phase recursive digital filter; Band pass filters; Cutoff frequency; Design methodology; Digital filters; Frequency response; Multidimensional signal processing; Multidimensional systems; Polynomials; Stability; Two dimensional displays;
fLanguage :
English
Journal_Title :
Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on
Publisher :
ieee
ISSN :
1057-7122
Type :
jour
DOI :
10.1109/81.704825
Filename :
704825
Link To Document :
بازگشت