Title :
A new approach in estimating the dynamics matrix of a system
Author :
El-Sinawi, Ameen H.
Author_Institution :
Dept. of Mech. & Aerosp. Eng., Dayton Univ., OH, USA
Abstract :
This paper presents a new approach in estimating the parameters of a dynamic system from an initial and relatively inaccurate state-space model. The proposed approach is based on determining an optimal control law that minimizes a quadratic performance index for a free final state condition by means of solving a two-point boundary-value problem. The control input to both the model and the physical system is assumed to be the difference between their outputs. The proposed approach is applied to a second order system that has a modeling error of about 40%. The new approach succeeded in reducing the modeling error to about 5%
Keywords :
boundary-value problems; control system synthesis; minimisation; optimal control; parameter estimation; performance index; state-space methods; dynamic system; dynamics matrix; modeling error; optimal control; quadratic performance index; second order system; state-space model; two-point boundary-value problem; Aerodynamics; Control systems; Feedback control; Filtering; Noise measurement; Nonlinear dynamical systems; Nonlinear equations; Optimal control; Performance analysis; State estimation;
Conference_Titel :
Aerospace and Electronics Conference, 1998. NAECON 1998. Proceedings of the IEEE 1998 National
Conference_Location :
Dayton, OH
Print_ISBN :
0-7803-4449-9
DOI :
10.1109/NAECON.1998.710093
