Title :
Analysis of least-squares state estimators for a harmonic oscillator
Author :
Bask, Michael ; Medvedev, Alexander
Author_Institution :
Control Eng. Group, Lulea Univ. of Technol., Sweden
Abstract :
The concept of least-squares observer is revisited. Robustness properties of this class of observers with respect to norm-bounded measurement noise are investigated and shown to be very much dependent on the operator chosen for the observer implementation. For the case of a harmonic oscillator, an explicit observer parameterization in terms of the implementation operator and the oscillator frequency is obtained, and observer´s existence conditions are proven and analyzed
Keywords :
active noise control; least squares approximations; observers; vibration control; active noise control; harmonic oscillator; least-squares; observer; robustness; state estimation; vibration control; Electromagnetic compatibility; Frequency estimation; Harmonic analysis; Noise measurement; Noise robustness; Observers; Oscillators; State estimation; Vibration control; Vibration measurement;
Conference_Titel :
Decision and Control, 2000. Proceedings of the 39th IEEE Conference on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6638-7
DOI :
10.1109/CDC.2000.912307
