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

fYear

1998

fDate

13-17 Jul 1998

Firstpage

33

Lastpage

37

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Aerospace and Electronics Conference, 1998. NAECON 1998. Proceedings of the IEEE 1998 National

Conference_Location

Dayton, OH

ISSN

0547-3578

Print_ISBN

0-7803-4449-9

Type

conf

DOI

10.1109/NAECON.1998.710093

Filename

710093