A new frequency domain system identification method
Paper i proceeding, 2011

A new frequency domain system identification method based on a multi-frequency input signal is proposed. Frequency contents of the oscillating signal are estimated using a modified Kaczmarz algorithm proposed in this paper. Lyapunov stability analysis is performed for this new Kaczmarz algorithm and transient bounds for estimation error are established. Moreover, a new method for estimation of the variance of the measurement noise in Kaczmarz algorithms is also described. A comparison of a transient performance of modified Kaczmarz algorithm and a recursive least-squares algorithm is presented. The results are applied to a frequency domain identification of a DC motor.

Författare

Alexander Stotsky

Chalmers, Signaler och system, System- och reglerteknik, Reglerteknik

IFAC Proceedings Volumes (IFAC-PapersOnline)

14746670 (ISSN)

Vol. 18 PART 1 3186-3191

Ämneskategorier

Matematik

DOI

10.3182/20110828-6-IT-1002.00115

ISBN

978-390266193-7