학술논문

Unknown Input Observer Design for a Class of Semilinear Hyperbolic Systems With Dynamic Boundary Conditions
Document Type
Periodical
Source
IEEE Transactions on Automatic Control IEEE Trans. Automat. Contr. Automatic Control, IEEE Transactions on. 68(9):5721-5728 Sep, 2023
Subject
Signal Processing and Analysis
Observers
Symmetric matrices
Linear matrix inequalities
Partial differential equations
Symbols
Sufficient conditions
Lyapunov methods
Distributed parameter systems
estimation
LMIs
unknown input observers (UIOs)
Language
ISSN
0018-9286
1558-2523
2334-3303
Abstract
The problem of unknown input observer design is considered for coupled PDE/ODE systems subject to incremental sector bounded nonlinearities and unknown boundary inputs. Assuming available measurements at the boundary of the distributed domain, the synthesis of the unknown input observer is based on Lyapunov methods and recast in terms of some matrix inequalities. Numerical simulations support and confirm the theoretical findings, illustrating the robust estimation performances of the proposed nonlinear unknown input observer.