Title :
Robust stability of time-variant difference equations with restricted parameter perturbations: regions in coefficient-space
Author :
Premaratne, Kamal ; Mansour, Mohamed
Author_Institution :
Dept. of Electr. & Comput. Eng., Miami Univ., Coral Gables, FL, USA
Abstract :
Suppose the rate of change of coefficients of a linear time-variant system modeled via a difference equation is restricted. The work presented is an attempt at developing an algorithm that determines regions in the coefficient-space where such a system is guaranteed to be globally asymptotically stable. Such information can be extremely useful in many applications, such as adaptive signal processing and control. Some previously published related results are consolidated as well
Keywords :
adaptive control; adaptive signal processing; difference equations; linear systems; numerical stability; robust control; time-varying systems; adaptive control; adaptive signal processing; coefficient-space regions; coefficients change rate; globally asymptotically stable system; linear time-variant system; restricted parameter perturbations; robust stability; time-variant difference equations; Adaptive signal processing; Asymptotic stability; Automatic control; Difference equations; Laboratories; Poles and zeros; Robust stability; Signal processing algorithms; Sufficient conditions; TV;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1997. ICASSP-97., 1997 IEEE International Conference on
Conference_Location :
Munich
Print_ISBN :
0-8186-7919-0
DOI :
10.1109/ICASSP.1997.599522
