On closed-loop system identification using polyspectral analysis given noisy input-output time-domain data

Authors:
Jitendra K. Tugnait;Yi Zhou
Affiliations:
Department of Electrical & Computer Engineering, Auburn University, Auburn, AL 36849, USA;Hekimian Labs., 15200 Omega Drive, Rockville, MD 20850, USA
Venue:
Automatica (Journal of IFAC)
Year:
2000

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Abstract

Parametric models of linear systems operating in closed-loop can be consistently identified from time-domain noisy input-output measurements using cumulant spectra without requiring parametric modeling of noise. Two algorithms are proposed and their asymptotic performance is analyzed.