Single‐channel predefined‐time synchronisation of chaotic systems
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DOI: 10.1002/asjc.2234
Abstract: Chaos has attracted the interest of the research community due to its applications in secure communication, and in the study of complex systems in physics, engineering and other applied sciences. In the particular case of… read more here.
Keywords: single channel; synchronisation; channel predefined; predefined time ... See more keywords
Anti‐unwinding attitude maneuver control with predefined time for rigid spacecraft with input saturation
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DOI: 10.1002/rnc.7423
Abstract: In this article, anti‐unwinding sliding mode attitude maneuver control with predefined time is investigated for rigid spacecraft with input saturation. First, a nonsingular sliding function containing two equilibrium points is designed to ensure the predefined‐time… read more here.
Keywords: control; predefined time; system; input saturation ... See more keywords
A class of adaptive predefined‐time extended state observers for high‐order strict‐feedback systems
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DOI: 10.1002/rnc.7470
Abstract: Fast state estimation for nonlinear systems has been a key issue in control theory and the recently developed predefined‐time stability acts as an effective tool for the problem. However, the studies of predefined‐time state observer… read more here.
Keywords: time extended; time; predefined time; class ... See more keywords
Attitude takeover control of spacecraft based on neural network predefined‐time extended state observer
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DOI: 10.1002/rnc.7493
Abstract: This article introduces the problem of predefined‐time attitude takeover control for spacecraft. A novel radial basis function neural network predefined‐time extended state observer is presented, which facilitates estimation of external disturbance, unmeasurable angular velocity, and… read more here.
Keywords: attitude takeover; time; predefined time; takeover control ... See more keywords
Dynamic‐surface‐based adaptive predefined‐time control for nonlinear non‐affine switched systems with sensor fault
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DOI: 10.1002/rnc.7549
Abstract: The adaptive neural tracking fault‐tolerant control problem is considered for nonlinear non‐affine switched systems with sensor faults via dynamic surface control (DSC) technique under arbitrary switchings within predefined‐time interval. During the controller design process, the… read more here.
Keywords: non affine; time; control; predefined time ... See more keywords
Predefined‐time impedance control of free‐flying flexible‐joint space robots for force sensor‐less target capturing with prescribed performance
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DOI: 10.1002/rnc.7657
Abstract: Aiming at safely capturing faulty satellites on orbit, a novel predefined‐time impedance controller is designed to address the control challenges of free‐flying flexible‐joint space robots (FFSR) considering output constraint. The FFSR system model is transformed… read more here.
Keywords: time; control; time impedance; predefined time ... See more keywords
Dynamic‐Event‐Based Predefined‐Time Secure Formation Control for Nonlinear Multiagent Systems Against FDI Attacks
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DOI: 10.1002/rnc.8017
Abstract: This article studies the problem of dynamic event‐triggered (DET) predefined‐time secure formation tracking control (FTC) for nonlinear multiagent systems (NMASs) against actuator nonaffine false data injection (FDI) attacks. In contrast to finite/fixed‐time control results, this… read more here.
Keywords: time; control; predefined time; time secure ... See more keywords
Practical Predefined‐Time Tracking Control of 6‐DOF Autonomous Vehicles With Input Quantization and Saturation
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DOI: 10.1002/rob.22590
Abstract: Trajectory tracking control is a fundamental problem in the control of unmanned systems. In practical systems, actuators often have input quantization and saturation constraints, and failing to account for these constraints can affect control convergence… read more here.
Keywords: time; control; predefined time; input quantization ... See more keywords
Predefined-Time Stability-Based Zeroing Neural Networks and Their Application in Solving the Lyapunov Equation
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DOI: 10.1007/s11063-024-11470-x
Abstract: Lyapunov equation is extensively applied in engineering areas, and zeroing neural networks (ZNN) are very effective in solving this kind of equation. In this paper, two predefined-time stability theorems are used to devise new activation… read more here.
Keywords: equation; lyapunov equation; time; predefined time ... See more keywords
Neural networks adaptive predefined-time control for pure-feedback nonlinear systems: a case study on robotic exoskeleton systems
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DOI: 10.1038/s41598-025-90002-6
Abstract: A predefined-time (PT) tracking adaptive control method is studied for non-affine pure-feedback nonlinear systems, with an emphasis on its practical application in robotic exoskeleton technology. A novel PT neural networks control algorithm is implemented, by… read more here.
Keywords: control; predefined time; feedback nonlinear; pure feedback ... See more keywords
Resilient event-triggered practically predefined-time heading control of ships with delay of steering gear and false-data-injection attacks
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DOI: 10.1080/00051144.2025.2546168
Abstract: The presence of time delays prevents the controller from responding to disturbances promptly, resulting in excessive overshoot and prolonged settling times. Moreover, traditional predefined-time stability theorems are not directly applicable to systems with operational delays.… read more here.
Keywords: time; control; false data; predefined time ... See more keywords