Adaptive second-order backstep** control for a class of 2DoF underactuated systems with input saturation and uncertain disturbances

W Guo, D Liu - Scientific Reports, 2024 - nature.com
An adaptive second-order backstep** control algorithm is proposed for a kind of two
degrees of freedom (2DoF) underactuated systems. The system dynamics is transformed …

Research on multi-UAV formation and semi-physical simulation with virtual structure

J Guo, Z Liu, Y Song, C Yang, C Liang - IEEE Access, 2023 - ieeexplore.ieee.org
In a highly challenging environment, it is difficult to ensure effective information exchange
between UAVs due to disruptions and limitations in communication. Aiming at the problem of …

Prescribed-time adaptive state observer approach for distributed output-feedback formation tracking of networked uncertain underactuated surface vehicles

SJ Yoo, BS Park - Nonlinear Dynamics, 2025 - Springer
This paper presents a prescribed-time adaptive state observer (PTASO) approach for
distributed output-feedback formation tracking of multiple underactuated surface vehicles …

Arbitrary 6-DOF large-angle tracking control for autonomous underwater vehicles via stochastic contraction stability and rotation matrix-based attitude representation

W Liu, Z **a, C Duan, Z Zhang, B Huang, J Miao - Nonlinear Dynamics, 2025 - Springer
This paper investigates a stochastic-contraction-stability-based convex optimization control
(SCOC) scheme for the trajectory tracking problem of stochastic autonomous underwater …

Distributed bipartite time‐varying formation tracking control with prescribed‐time convergence for heterogeneous Euler‐Lagrange systems

H Zhong, T Han, B **ao, XS Zhan… - International Journal of …, 2024 - Wiley Online Library
This paper focuses on the study of the prescribed‐time bipartite time‐varying formation
tracking (BTVFT) problem for multiple heterogeneous Euler‐Lagrange systems (HELSs) with …

Fault-tolerant cooperative control of multiple uncertain Euler-Lagrange systems with an uncertain leader

R Gu, X Sun - Electronics, 2024 - mdpi.com
This paper explores the fault-tolerant cooperative control of multiagent systems, which are
modeled via an uncertain leader system and multiple uncertain Euler–Lagrange systems …

Boundary adaptive iterative learning control for flexible satellite system with input constraint

Z Zhao, Y Yuan, B Luo, X Xu, T Huang, W Gui - Nonlinear Dynamics, 2024 - Springer
This paper is concerned with the constrained vibration control problem of a flexible satellite
system in the presence of unknown external disturbances. Therein, the dynamic model of …

Observer-based adaptive control for uncertain nonholonomic systems subject to time-varying function constraints on states

J Yang, Y Wu - Nonlinear Dynamics, 2024 - Springer
This work investigates the stability issues of nonholonomic systems with dynamic
uncertainty, input saturation, and state constraints. In contrast to previous research, a radical …

Distributed formation tracking with connectivity preservation and orientation alignment

G Sun, Q Zeng, Z Cai - … of the Institute of Measurement and …, 2024 - journals.sagepub.com
This paper investigates the formation tracking problem incorporating connectivity
preservation and orientation alignment for multi-agent systems. Consider the body-fixed …

A Finite‐Time Fractional‐Order Error Extended State Observer for Hypersonic Vehicle

M Zhao, J Song, Y Hu, W Li - International Journal of …, 2024 - Wiley Online Library
To address the challenges posed by strong coupling, nonlinearity, and rapid time‐varying
dynamics in hypersonic vehicle (HV), this study presents an active disturbance rejection …