A common disturbance decoupled observer for linear systems with unknown inputs. (23rd December 2008)

• Record Type: Journal Article
• Authors: Trinh, H.; Teh, P.S.; Ha, Q.P.
• Is Part Of: International journal of automation and control. Volume 2:Number 2/3(2008)
• Page Start: 286
• Page End: 297
• Publication Date: 2008-12-23
• Subjects: simultaneous observation -- common observers -- linear functional observers -- unknown input systems -- disturbance observers -- decoupled observers; Automation -- Periodicals; Control theory -- Periodicals; Automatic control -- Periodicals; Robots -- Periodicals; Bionics -- Periodicals; Intelligent control systems -- Periodicals
• Languages: English
• ISSNs: 1740-7516

Abstract

This paper presents a solution to the problem of designing a common linear functional observer that can observe a partial set of the state vector of two linear systems with unknown inputs. A new structure of a decoupled linear functional observer is proposed for systems subject unknown disturbances, using only the available output information. Existence conditions as well as a design procedure are given for constructing the proposed observer. A numerical example is given to illustrate the effectiveness of the new observer structure.