Title :
A stable RLC parameterization of the direct structure for adaptive IIR filters
Author :
Netto, S.L. ; de Campos, M. ; Antoniou, A. ; Agathoklis, P.
Author_Institution :
Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada
Abstract :
A stable parameterization of the direct-form structure with simple stability monitoring is introduced for adaptive IIR filtering. The proposed structure is obtained directly from passive RLC realizations. The stability of the resulting adaptive IIR filter is guaranteed by ensuring positive values for the equivalent passive RLC elements. Special attention is given to doubly terminated RLC networks to achieve optimal sensitivity properties of the overall transfer function with respect to parameter variations. Examples are included to demonstrate the application of the proposed technique
Keywords :
IIR filters; adaptive filters; circuit stability; digital filters; equivalent circuits; sensitivity analysis; transfer functions; RLC parameterization; adaptive IIR filters; direct-form structure; doubly terminated RLC networks; equivalent passive RLC elements; optimal sensitivity properties; overall transfer function; parameter variations; stability monitoring; Adaptive filters; Circuit stability; Computerized monitoring; Condition monitoring; Filtering; Finite impulse response filter; IIR filters; Passive circuits; Passive networks; Stability; Transfer functions;
Conference_Titel :
Circuits and Systems, 1995., Proceedings., Proceedings of the 38th Midwest Symposium on
Conference_Location :
Rio de Janeiro
Print_ISBN :
0-7803-2972-4
DOI :
10.1109/MWSCAS.1995.504429
