Results 231 to 240 of about 21,234,038 (271)

Fixed-Time Fuzzy Control of Uncertain Robots With Guaranteed Transient Performance

IEEE transactions on fuzzy systems, 2023
In this article, an adaptive fixed-time fuzzy control scheme is proposed for an uncertain robot manipulator with user-defined performance. A novel symmetrical barrier Lyapunov function is designed based on the error conversion mechanism and the ...
Chengzhi Zhu, Chenguang Yang, Yiming Jiang, Hui Zhang   +3 more
semanticscholar   +1 more source

Singularity-Free Adaptive Fixed-Time Tracking Control for MIMO Nonlinear Systems With Dynamic Uncertainties

IEEE Transactions on Circuits and Systems - II - Express Briefs
This brief focuses on adaptive neural fixed-time tracking control problem for the multi-input and multi-output (MIMO) nonlinear systems with dynamic uncertainty.
Ke Xu, Huanqing Wang, P. X. Liu
semanticscholar   +1 more source

Fixed-Time Lyapunov Criteria of Stochastic Nonlinear Systems and Its Generalization

IEEE Transactions on Automatic Control, 2023
This study investigates the fixed-time stability of stochastic nonlinear systems described by Itô differential equations. The improved fixed-time Lyapunov theorem is given and an important corollary is obtained. It is proved that the upper-bound estimate
H. Min, Shang Shi, Shengyuan Xu, Jian Guo, Zhengqiang Zhang   +4 more
semanticscholar   +1 more source

Differential Games with Fixed Time

Journal of Cybernetics, 1971
In this paper, we consider differential games, the termination time of which is fixed. These games constitute a special class suitable for more complete investigation.
B. N. Pshenichnyy, M. I. Sagaydak
openaire   +1 more source

Adaptive Neural Fixed-Time Control for Uncertain Nonlinear Systems

IEEE Transactions on Circuits and Systems - II - Express Briefs
This brief addresses the adaptive fixed-time system control problem subject to unknown nonlinear functions. By employing backstepping technique, fixed-time control, and neural networks (NNs), an adaptive fixed-time control approach is developed.
Siwen Liu, Huanqing Wang, Tie-shan Li, Ke Xu   +3 more
semanticscholar   +1 more source

Fixed-Time Prescribed Performance Consensus Control for Multiagent Systems With Nonaffine Faults

IEEE transactions on fuzzy systems, 2023
This article studies the fixed-time consensus tracking control of nonlinear multiagent systems (NNMASs) suffering from nonaffine faults. A fixed-time command filter is constructed to solve the “explosion of complexity” issue, and a novel fixed-time error
Bin Xin, Shuai Cheng, Qing Wang, Jie Chen, Fang Deng   +4 more
semanticscholar   +1 more source

Global fixed-time trajectory tracking control of underactuated USV based on fixed-time extended state observer

ISA Transactions, 2023
This paper studies the trajectory tracking problem of unmanned surface vehicle subject to unmeasurable velocities and unknown disturbances. By combining a fixed-time extended state observer (FESO) and a fixed-time differentiator, a fixed-time sliding mode control (FTSMC) law is proposed, in which a saturation function is adopted to make the terminal ...
Yunsheng, Fan, Bingbing, Qiu, Lei, Liu, Yu, Yang   +3 more
openaire   +2 more sources

Robust Adaptive Fixed-Time Sliding-Mode Control for Uncertain Robotic Systems With Input Saturation

IEEE Transactions on Cybernetics, 2022
In this article, a robust adaptive fixed-time sliding-mode control method is proposed for robotic systems with parameter uncertainties and input saturation.
Yunsong Hu, Huaicheng Yan, Haotong Zhang, Meng Wang, Lu Zeng   +4 more
semanticscholar   +1 more source

Fixed-Time System Identification Using Concurrent Learning

IEEE Transactions on Neural Networks and Learning Systems, 2023
This article presents a fixed-time (FxT) system identifier for continuous-time nonlinear systems. A novel adaptive update law with discontinuous gradient flows of the identification errors is presented, which leverages concurrent learning (CL) to guarantee the learning of uncertain nonlinear dynamics in a fixed time, as opposed to asymptotic or ...
Farzaneh Tatari, Majid Mazouchi, Hamidreza Modares   +2 more
openaire   +2 more sources

Fixed-Time Prescribed Performance Adaptive Fixed-Time Sliding Mode Control for Vehicular Platoons With Actuator Saturation

IEEE transactions on intelligent transportation systems (Print), 2022
This paper investigates a prescribed tracking performance vehicular platoon control problem with actuator saturation, dynamics uncertainties, and unknown disturbances.
Zhenyu Gao, Yi Zhang, Ge Guo
semanticscholar   +1 more source