Delayed observers for linear systems with unknown inputs

S Sundaram, CN Hadjicostis - IEEE Transactions on Automatic …, 2007 - ieeexplore.ieee.org
We present a method for constructing reduced-order state observers for linear systems with
unknown inputs. Our approach provides a characterization of observers with delay, which …

Non-linear observer design for a class of singular time-delay systems with Lipschitz non-linearities

MC Nguyen, H Trinh, PT Nam - IMA Journal of Mathematical …, 2017 - academic.oup.com
In this paper, we consider a class of time-delay singular systems with Lipschitz non-
linearities. A method of designing full-order observers for the systems is presented which …

A generalized nonlinear extended state observer for multi-output Lipschitz systems

MMS Pasand, AA Ahmadi - European Journal of Control, 2024 - Elsevier
This paper introduces a generalized nonlinear extended state observer with a rigorous
convergence proof enabling its usage for multi-output Lipschitz nonlinear as well as linear …

[PDF][PDF] Unknown inputs observers for a class of nonlinear systems

M Triki, M Farza, T Maatoug, M M'Saad… - International Journal of …, 2010 - sta-tn.com
A high gain observer is proposed for a class of multi-output nonlinear systems with unknown
inputs in order to simultaneously estimate the whole state as well as the unknown inputs …

High gain observer with updated gain for a class of MIMO nonlinear systems

M Farza, M Oueder, RB Abdennour… - International Journal of …, 2011 - Taylor & Francis
A high gain like observer with an updated gain is proposed for a class of MIMO nonlinear
systems that are observable for any inputs. The main contribution of this article lies in the …

An exponential observer with delay-dependent gain for a class of nonlinear systems with time-varying measurement delay

F Cacace, A Germani, C Manes - 2012 IEEE 51st IEEE …, 2012 - ieeexplore.ieee.org
This paper presents a state observer for drift observable nonlinear systems when output
measurements are affected by a known and bounded time varying delay. The proposed …

Interval observers for linear systems with delay

F Mazenc, SI Niculescu… - Proceedings of the 48h …, 2009 - ieeexplore.ieee.org
This paper focuses on the analysis of some classes of observers for linear systems with a
point-wise delay. First, it is pointed out that, classical interval observers for systems without …

A nonlinear high-gain observer for systems with measurement noise in a feedback control framework

AA Prasov, HK Khalil - IEEE Transactions on Automatic Control, 2012 - ieeexplore.ieee.org
We address the problem of state estimation for a class of nonlinear systems with
measurement noise in the context of feedback control. It is well-known that high-gain …

Design of full order observers with unknown inputs for delayed singular systems with constant time delay

K Malek, E Montassar, H Messaoud… - … on Control, Decision …, 2014 - ieeexplore.ieee.org
In this paper, new time and frequency domain designs of Unknown Inputs Full Order
Observers (UIFOO) for a class of delayed singular systems are proposed. A constant time …

Observer design for generalized sector-bounded noisy nonlinear systems

K Vijayaraghavan - … of Mechanical Engineers, Part I: Journal …, 2014 - journals.sagepub.com
This article presents a new observer for a class of nonlinear systems, defined as a
“generalized sector-bounded” nonlinear system, in the presence of both sensor and input …