Modular Design of Discrete-time Nonlinear Observers for State and Disturbance Estimation

abstract

• This work studies the problem of design of discrete-time nonlinear observers in the presence of exogenous disturbances. In particular, the present work proposes a systematic design method for discrete-time nonlinear state and disturbance observers in modular form, consisting of an observer for the disturbance-free part of the system, along with a disturbance observer and a state-estimate corrector. The modular observer is first defined and characterized in a general setting and then, a systematic design method is developed on the basis of exact linearization with eigenvalue assignment. Sufficient conditions for feasibility of the proposed nonlinear modular observer design are derived. 2009 EUCA.

authors

• Kravaris, Costas

published proceedings

• EUROPEAN JOURNAL OF CONTROL

author list (cited authors)

• Kravaris, C.

citation count

• 4

complete list of authors

• Kravaris, Costas

publication date

• January 2009

publisher

• Elsevier  Publisher

published in

• European Journal of Control  Journal

keywords

• Discrete-time Observers
• Disturbance Estimation
• Nonlinear Observers

Digital Object Identifier (DOI)

• 10.3166/EJC.15.120-130

start page

• 120

end page

• 130

volume

• 15

issue

• 2

URL

• http://dx.doi.org/10.3166/ejc.15.120-130