Title :
Improved model reduction procedure for 2-D separable denominator digital systems
Author_Institution :
Dept. of Electr. Eng., Sydney Univ., NSW, Australia
fDate :
11/1/1997 12:00:00 AM
Abstract :
An improved procedure is presented for the model reduction of 2-D separable denominator digital systems H(z1,z2). The proposed procedure is based on modifying the factorization H(z1 ,z2)=H2(z2)H1(z1 ) and minimizing an existing frequency error bound developed by Zhou, Li, and Lee (1991). In terms of small actual frequency errors and tight frequency error bounds, this procedure is superior to the existing model reduction methods
Keywords :
digital systems; errors; filtering theory; matrix algebra; multidimensional systems; reduced order systems; two-dimensional digital filters; 2D separable denominator digital systems; digital filters; factorization; frequency error bound; model reduction procedure; Australia; Circuits; Digital signal processing; Digital systems; Frequency; IIR filters; Reduced order systems; Signal processing algorithms; State-space methods; Transfer functions;
Journal_Title :
Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on
