Results 41 to 50 of about 460 (145)

Flight evaluation of simultaneous actuator/sensor fault reconstruction on a quadrotor minidrone

IET Control Theory & Applications, 2021
In view of the increase in the number of Unmanned Aerial Vehicles (UAVs) in the commercial and private sectors, it is imperative to make sure that such systems are safe, and thus resilient to faults and failures. This paper considers the numerical design
S. Waitman, H. Alwi, C. Edwards
doaj   +1 more source

Average Dwell Time Based Smooth Switching Linear Parameter-Varying Proportional-Integral-Derivative Control for an F-16 Aircraft

IEEE Access, 2021
Switching control methods have great potential applications in flight control system design. However, nonsmooth control commands at switching instants could lead to performance degradations or bring in safety risks. This paper presents a smooth switching
Bixuan Huang, Bei Lu, Qifu Li, Yanhui Tong   +3 more
doaj   +1 more source

Performance Optimization with LPV Synthesis for Disturbance Attenuation in Planar Motors

Mathematics
Optimizing the performance of motion control systems with variations in nonlinear parameters is not an easy task. To accomplish this task, it is important to design the controller using the linear system approach.
Khac Huan Su, Keunhoon Park, Young Seop Son, Youngwoo Lee   +3 more
doaj   +1 more source

Analysis and Controller Design for Parameter Varying T-S Fuzzy Systems with Markov Jump

Mathematics
In this paper, we investigate a novel T-S fuzzy parameter varying system with Markov jump, in which parameters depend not only on a Markov chain but also on linear parameter varying elements that take values in convex polytopic sets.
Na Min, Hongyang Zhang
doaj   +1 more source

Electrophysiological Characteristics of Atrial Fibrillation Trigger Sites During Ongoing Atrial Fibrillation Using Ultra‐High‐Resolution Mapping

Journal of Arrhythmia, Volume 42, Issue 3, June 2026.
AF trigger sites exhibited a markedly shorter minimum local cycle length during ongoing AF, suggesting transient rapid activity. Ultra‐high‐resolution mapping during ongoing AF may provide complementary mechanistic information when conventional trigger mapping is inconclusive.
Kohki Nakamura, Takehito Sasaki, Taiki Masuyama, Kentaro Minami, Shingo Yoshimura, Suguru Nishiuchi, Akiko Kodama, Kojiro Hattori, Kenichi Kaseno, Nobusada Funabashi, Shigeto Naito   +10 more
wiley   +1 more source

Data-Driven Safe Controller Design for LPV Systems with Constant Input Matrix Under Polyhedral and Ellipsoidal Constraints

Axioms
This paper proposes a data-driven control design framework for linear parameter-varying (LPV) systems with polyhedral and ellipsoidal constraints, where the input matrix of the system is constant.
Hongli Yang, Qian Du, Ivan Ganchev Ivanov   +2 more
doaj   +1 more source

The Efficacy of Left Atrial Appendage Occlusion During Thoracoscopic Epicardial AF Ablation for Improving Rhythm and Cardiac Function in Patients With Heart Failure

Journal of Arrhythmia, Volume 42, Issue 3, June 2026.
Thoracoscopic epicardial AF ablation in heart failure improved LV systolic function irrespective of left atrial appendage occlusion (LAAO). Concomitant surgical LAAO was associated with fewer LPV reconnections without worsening postoperative diastolic function, while atrial tachyarrhythmia recurrence was similar between groups.
Seongjin Park, Dong Seop Jeong, Jiwon Kim, Myoung Jung Kim, Juwon Kim, Seung‐Jung Park, Kyoung‐Min Park, Young Keun On, Ju Youn Kim   +8 more
wiley   +1 more source

Periodic Scenario Trees: A Novel Framework for Robust Periodic Invariance and Stabilization of Constrained Uncertain Linear Systems

International Journal of Robust and Nonlinear Control, Volume 36, Issue 9, Page 5069-5086, June 2026.
ABSTRACT This work proposes a new framework for stabilizing uncertain linear systems and for determining robust periodic invariant sets and their associated control laws for constrained uncertain linear systems. Necessary and sufficient conditions for stabilizability by periodic controllers are stated and proven using finite step Lyapunov functions for
Yehia Abdelsalam, Sankaranarayanan Subramanian, Sebastian Engell   +2 more
wiley   +1 more source

Robust State-Feedback Control and Convergence Analysis for Uncertain LPV Systems Using State and Parameter Estimation

Mathematics
This study introduces the design of a state-feedback controller for Linear Parameter Varying (LPV) systems in scenarios where exogenous parameters are not directly accessible, and the state vector is to be estimated.
Esdras Battosti da Silva, Ruhan Pontes Policarpo de Souza, Cristiano Marcos Agulhari, Glaucia Maria Bressan, Wesley Angelino de Souza   +4 more
doaj   +1 more source

An adaptive observer design approach for a class of discrete-time nonlinear systems

International Journal of Applied Mathematics and Computer Science, 2018
We consider the problem of joint estimation of states and some constant parameters for a class of nonlinear discrete-time systems. This class contains systems that could be transformed into a quasi-LPV (linear parameter varying) polytopic model in the ...
Srinivasarengan Krishnan, Ragot José, Aubrun Christophe, Maquin Didier   +3 more
doaj   +1 more source