Hongqian Lu
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View article: Predefined-Time Robust Control for a Suspension-Based Gravity Offloading System
Predefined-Time Robust Control for a Suspension-Based Gravity Offloading System Open
Simulating low- or zero-gravity environments on the ground is an important technology in the field of space exploration. Suspension-based gravity offloading (SGO) systems are commonly used ground-based platforms for simulating space enviro…
View article: Robust Output Feedback MPC of Antagonistic Pneumatic Artificial Muscle System
Robust Output Feedback MPC of Antagonistic Pneumatic Artificial Muscle System Open
Suspended constant force (SCF) control is a critical technology in suspended gravity offloading systems. However, inherent underactuation, unmodelled dynamics, and external disturbances can significantly degrade control performance and eve…
View article: Adaptive event‐triggered control and observer design for discrete‐time nonlinear Markov jump systems with DoS attacks using policy iteration‐based adaptive dynamic programming
Adaptive event‐triggered control and observer design for discrete‐time nonlinear Markov jump systems with DoS attacks using policy iteration‐based adaptive dynamic programming Open
This article addresses adaptive event‐triggered discrete‐time nonlinear Markov jump systems (MJs) with DoS attacks, where the introduced DoS attacks are considered as more general stochastic models with fixed trigger frequency and duration…
View article: Adaptive event-triggered state estimation for complex networks with nonlinearities against hybrid attacks
Adaptive event-triggered state estimation for complex networks with nonlinearities against hybrid attacks Open
This paper investigates the event-triggered state estimation problem for a class of complex networks (CNs) suffered by hybrid cyber-attacks. It is assumed that a wireless network exists between sensors and remote estimators, and that data …
View article: Adaptive Event‐Triggered Synchronization of Networked Neural Networks with Time‐Varying Delay Subject to Actuator Saturation
Adaptive Event‐Triggered Synchronization of Networked Neural Networks with Time‐Varying Delay Subject to Actuator Saturation Open
This paper discusses the adaptive event‐triggered synchronization problem of a class of neural networks (NNs) with time‐varying delay and actuator saturation. First, in view of the limited communication channel capacity of the network syst…
View article: Subversion of conventional construction: Building 3D printing technology
Subversion of conventional construction: Building 3D printing technology Open
As a rapid prototyping technology, 3D printing technology has been successfully utilized in medical treatment, jewelry, precision parts manufacturing, aviation and other fields. Meanwhile, owing to its feature of energy saving and emission…
View article: Improved Distributed Event-Triggered Control for Networked Control System under Random Cyberattacks via Bessel–Legendre Inequalities
Improved Distributed Event-Triggered Control for Networked Control System under Random Cyberattacks via Bessel–Legendre Inequalities Open
The stability problem of networked control system (NCS) with cyberattacks and processing delay is considered under an event-triggered scheme. An improved distributed event-triggered mechanism is proposed, which optimizes the performance of…
View article: Adaptive Event-Triggered H<sub>∞</sub> Control for Networked Control Systems With Actuator Saturation and Random Nonlinearities
Adaptive Event-Triggered H<sub>∞</sub> Control for Networked Control Systems With Actuator Saturation and Random Nonlinearities Open
This paper investigates the problem of the adaptive event-triggered control for networked nonlinear systems with actuator saturation using dynamic output feedback controller (DOFC). In view of adaptive event-triggered mechanism (AETM), a m…
View article: Event-Triggered H<sub>∞</sub> Filtering for Networked Systems Under Hybrid Probability Deception Attacks
Event-Triggered H<sub>∞</sub> Filtering for Networked Systems Under Hybrid Probability Deception Attacks Open
In this article, the deception attacks are the research object, which are widely concerned in cyber attacks, and the feasibility of H∞ filtering for networked system based on event-triggered mechanism (ETM) is discussed. Firstly, in order …
View article: New Stability Criteria for Event‐Triggered Nonlinear Networked Control System with Time Delay
New Stability Criteria for Event‐Triggered Nonlinear Networked Control System with Time Delay Open
This note focuses on the stability and stabilization problem of nonlinear networked control system with time delay. To alleviate the burden of transformation channel and shorten the dynamic process simultaneously, an improved event‐trigger…
View article: Event‐Triggered Stability Analysis of Semi‐Markovian Jump Networked Control System with Actuator Faults and Time‐Varying Delay via Bessel–Legendre Inequalities
Event‐Triggered Stability Analysis of Semi‐Markovian Jump Networked Control System with Actuator Faults and Time‐Varying Delay via Bessel–Legendre Inequalities Open
This paper discusses the stability of semi‐Markovian jump networked control system containing time‐varying delay and actuator faults. The system dynamic is optimized while the network resource is saved by introducing an improved static eve…
View article: Robust <inline-formula> <tex-math notation="LaTeX">$H_{\infty}$ </tex-math> </inline-formula> Control of Lurie Nonlinear Stochastic Network Control Systems With Multiple Additive Time-Varying Delay Components
Robust Control of Lurie Nonlinear Stochastic Network Control Systems With Multiple Additive Time-Varying Delay Components Open
In order to further solve the stability problem in the actual network control systems, this paper first simultaneously considers the controlled object system delay and network time delay in the Lurie nonlinear stochastic network control sy…
View article: State Estimation-Based Event-Triggered <inline-formula> <tex-math notation="LaTeX">$H_\infty$ </tex-math> </inline-formula> Control for Multi-Delay Stochastic Network Control System
State Estimation-Based Event-Triggered Control for Multi-Delay Stochastic Network Control System Open
In this paper, the stability and stabilization problems are investigated for a class of event-triggered multiple time delays network control systems. Under the conditions of the event-triggered scheme and the system state estimation, the d…
View article: A Novel Framework for Shock Filter Using Partial Differential Equations
A Novel Framework for Shock Filter Using Partial Differential Equations Open
In dilation or erosion processes, a shock filter is widely used in signal enhancing or image deburring. Traditionally, sign function is employed in shock filtering for reweighting of edge-detection in images and decides whether a pixel sho…