A new frequency domain system identification method
Artikel i vetenskaplig tidskrift, 2012
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
Proceedings of the Institution of Mechanical Engineers. Part I: Journal of Systems and Control Engineering
0959-6518 (ISSN) 20413041 (eISSN)
Vol. 226 1 111-125Ämneskategorier
Beräkningsmatematik
Fundament
Grundläggande vetenskaper
DOI
10.1177/0959651811406344