Premium
Design of Full‐Order Observers for Systems with Unknown Inputs by Using the Eigenstructure Assignment
Author(s) -
Lungu Mihai,
Lungu Romulus
Publication year - 2014
Publication title -
asian journal of control
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.769
H-Index - 53
eISSN - 1934-6093
pISSN - 1561-8625
DOI - 10.1002/asjc.889
Subject(s) - robustness (evolution) , control theory (sociology) , observer (physics) , computer science , state observer , state vector , mathematics , mathematical optimization , artificial intelligence , nonlinear system , control (management) , biochemistry , chemistry , physics , classical mechanics , quantum mechanics , gene
In this paper a full‐order observer is suggested in order to achieve finite‐time reconstruction of the state vector for a class of linear systems with unknown inputs. The proposed design procedure is a combination of the approaches proposed by Lin & Wang [1] and Trinh & Ha [2]. The resulted observer has been improved, from the robustness point of view, by this paper's authors by using a novel and efficient method; it consists of adding three robustness terms which cancel the negative effect of the uncertainties which can appear in the system. The effectiveness of the suggested design algorithm is illustrated by a numerical example (aircraft lateral motion).