Title :
Zero-state accessibility and stability of optimal coupled-form digital filters with rounding
Author :
Lepschy, Antonio ; Mian, Gian Antonio ; Viaro, Umberto
Author_Institution :
Dept. of Electron. & Inf., Padova Univ., Italy
fDate :
5/1/1988 12:00:00 AM
Abstract :
The symmetry properties and the zero-state accessibility conditions for second-order fixed-point coupled-form digital filters with two or four roundoff quantizers are derived. The stability regions for different values of the asymmetry parameter k are determined and compared with those for the normal coupled form (k =1) and for the direct form
Keywords :
digital filters; stability; asymmetry parameter; fixed-point coupled-form digital filters; optimal coupled-form digital filters; rounding; roundoff quantizers; second order filters; stability regions; symmetry properties; zero-state accessibility; Digital filters; Eigenvalues and eigenfunctions; Equations; Informatics; Limit-cycles; Noise reduction; Prototypes; Quantization; Stability; Symmetric matrices;
Journal_Title :
Circuits and Systems, IEEE Transactions on
