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A new frequency domain system identification method

Alexander Stotsky (Institutionen för signaler och system, Reglerteknik)
IFAC Proceedings Volumes. 18th IFAC World Congress, Milano, 28 August - 2 September 2011 (1474-6670). Vol. 18 (2011), p. 3186-3191.
[Konferensbidrag, refereegranskat]

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.

Denna post skapades 2012-11-06.
CPL Pubid: 165582


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Institutioner (Chalmers)

Institutionen för signaler och system, Reglerteknik (2005-2017)



Chalmers infrastruktur