Showing papers in "International Journal of Control in 2021"
TL;DR: In this article, the authors consider the problem of analyzing and designing gradient-based discrete-time optimisation algorithms for a class of unconstrained optimisation problems having strongly convex objective functions.
Abstract: We consider the problem of analysing and designing gradient-based discrete-time optimisation algorithms for a class of unconstrained optimisation problems having strongly convex objective functions...
51 citations
TL;DR: A new inequality for dealing with the dynamic properties of G-MSN with intermittent control is established, based on which the stability problem is analysed by virtue of Lyapunov method and graph theory and sufficient criteria are derived to guarantee the exponential stability in mean square, which are less conservative.
Abstract: This paper concerns the stabilisation problem of a class of multi-weights stochastic complex networks driven by G-Brownian motion (G-MSN) via aperiodically intermittent adaptive control. It is wort...
38 citations
TL;DR: This paper introduces the performance function and output error transformation technique to transform the tracking error dynamics with inequality performance constraints to an equivalent unconstrained error one and proposes a robust adaptive fixed-time tracking controller, which requires no upper bound of the disturbance.
Abstract: This paper investigates the prescribed performance fixed-time tracking control problem for a class of second-order nonlinear systems with bounded disturbance and actuator saturation limit. ...
31 citations
TL;DR: This paper investigates the distributed fixed-time consensus-based formation tracking problems for multiple nonholonomic wheeled mobile robots under a directed interaction topology and proposes distributed controllers, which can guarantee the group of robots converge to a predefined formation pattern with its centroid moving along the predefined reference trajectory in a fixed time.
Abstract: This paper investigates the distributed fixed-time consensus-based formation tracking problems for multiple nonholonomic wheeled mobile robots under a directed interaction topology. The distributed...
28 citations
TL;DR: This work introduces prescribed performance function, and converts the original constrained system into an equivalent unconstrained system through error transformation, and introduces dynamic surface technology to reduce the complexity of the control algorithm.
Abstract: To solve the problem of trajectory tracking control for quadrotor UAV with control input saturation, a novel prescribed performance backstepping dynamic surface control scheme is proposed in the pr...
26 citations
TL;DR: The problem of fault diagnosis in technical systems described by linear dynamic models is considered and the approach allowing increase robustness of the diagnostic process under disturbances is suggested.
Abstract: The problem of fault diagnosis in technical systems described by linear dynamic models is considered. The approach allowing increase robustness of the diagnostic process under disturbances is sugge...
25 citations
TL;DR: A novel adaptive backstepping control design based on tuning function is given, which successfully eliminates the effect of uncertainties and only one parameter needs to be adjusted online in the control design, which greatly alleviates the computation burden.
Abstract: In this paper, we investigate the tracking control problem for a class of strict-feedback nonlinear systems with parametric uncertainties and time-varying asymmetric full-state constraints. By intr...
25 citations
TL;DR: A stochastic discrete-time multivariable proportional-derivative-double derivative (PDD) controller with the objective of possessing superior tracking capability in presence of unmodeled joint friction forces while only using joint position measurements is proposed.
Abstract: Feeding a controller with acceleration signal can improve system robustness and relative stability. However, neither measurements of acceleration signals nor velocity signals are available in most ...
24 citations
TL;DR: In this article, the authors studied dynamic interpolation for obstacle avoidance, which is a problem that consists of minimising a suitable energy functional among a set of admissible curves subject to various constraints.
Abstract: This work is devoted to studying dynamic interpolation for obstacle avoidance. This is a problem that consists of minimising a suitable energy functional among a set of admissible curves subject to...
23 citations
TL;DR: The simulation results indicate that the missiles with proposed cooperative guidance law can hit the manoeuvring target with satisfactory performance and the convergence analysis indicates that the consensus errors converge to the origin in fixed-time interval.
Abstract: An adaptive fixed-time cooperative guidance law is designed in this paper to intercept the manoeuvring target for simultaneous arrival. In order to improve the guidance performance, the adaptive la...
23 citations
TL;DR: Despite constructing the control algorithm for general switched systems, the selection of control signal is based on appropriately calculated input bounds rather than a switching term itself, resulting in no chattering effects in control input.
Abstract: This paper focuses on proposing a novel method regarding general tracking control of discrete high-order parametrically uncertain systems with unknown arbitrary switching signals and unknowable tim...
TL;DR: A robust observer-based adaptive controller for an intravenous glucose tolerance test (IVGTT) model of Type 1 Diabetes Mellitus (T1DM) patients is designed, combining robustness and adaptive philosophy for the first time.
Abstract: The objective of this paper is to design a robust observer-based adaptive controller for an intravenous glucose tolerance test (IVGTT) model of Type 1 Diabetes Mellitus (T1DM) patients. The model i...
TL;DR: The annular stochastic finite-time stability approach to the stabilisation problem of a satellite with respect to the geomagnetic field is presented and it is shown that the approach attains less conservative results than those obtainable with the existing literature.
Abstract: In this paper, we investigate some finite-time control problems for stochastic linear time-varying systems, described by an Ito type differential equation. In particular, the annular stochastic fin...
TL;DR: The stability of the closed-loop delayed Multi-Agent System (MAS) is proven to leverage the Lyapunov–Krasovskii approach combined with the Barbalat's Lemma, and stability conditions are expressed as a set of feasible Linear Matrix Inequalities (LMIs) derived via the free weighted matrices method.
Abstract: This paper addresses the leader-tracking problem of high-order nonlinear Lipschitz agents sharing their state information through a delayed communication network. The multiple delays associated to ...
TL;DR: In this work, the problem of governing systems subjected to harmonic uncertainties is addressed and an active disturbance rejection control (ADRC) framework is proposed here with a key component being the Fourier transform.
Abstract: In this work, the problem of governing systems subjected to harmonic uncertainties is addressed. An active disturbance rejection control (ADRC) framework is proposed here with a key component being...
TL;DR: In this paper, the authors present a new method for finding feasible solutions to motion planning and control problem of robotic systems in different environments with various applications is an active area of research.
Abstract: Finding feasible solutions to motion planning and control problem of robotic systems in different environments with various applications is an active area of research. This article presents a new s...
TL;DR: A definition of robust observability is introduced that leverages possible observations of the events that are subject to intermittent loss of observations and language permissiveness is addressed by extending the recently introduced definition of Relative observability to robust relative observability.
Abstract: We address in this paper the design of robust supervisors that are able to cope with intermittent loss of observations and also make the controlled system achieve the specification language under n...
TL;DR: This paper tackles a novel load frequency control (LFC) problem in the presence of constant and time-varying delays in state and control input under load disturbances through a prediction-based super twisting sliding mode control (ST-SMC).
Abstract: A shift in paradigm from dedicated to open communication channels in power systems has made them prone to constant and time-varying delays. This paper tackles a novel load frequency control (LFC) p...
TL;DR: A new interconnection-and-damping-assignment passivity-based-control (IDA-PBC) design is presented, which includes the adaptive estimation of the friction forces and the introduction of a nonlinear dissipative term in the closed-loop system dynamics.
Abstract: In this work the control of underactuated mechanical systems with dry friction on actuated and unactuated joints is investigated. A new interconnection-and-damping-assignment passivity-based-contro...
TL;DR: The considered n- person REBG is converted to an equivalent stochastic control system by using the semi-tensor product of matrices, and an algorithm is proposed to solve the finite horizon optimal control problem of n-person REBGs.
Abstract: This paper studies the optimal control of n-person random evolutionary Boolean games (REBGs). Firstly, the considered n-person REBG is converted to an equivalent stochastic control system by using ...
TL;DR: The disturbance rejection and the periodic signal tracking problems are considered for linear control systems with unknown exogenous disturbances underlimited communication resource under limited communication resource.
Abstract: This paper studies the disturbance rejection and the periodic signal tracking problems for linear systems with unknown exogenous disturbances under limited communication resources. The developed sc...
TL;DR: In this paper, a methodology for the construction of simple Control Lyapunov Functionals (CLFs) for boundary controlled parabolic Partial Differential Equations (PDEs) is presented.
Abstract: This paper presents a methodology for the construction of simple Control Lyapunov Functionals (CLFs) for boundary controlled parabolic Partial Differential Equations (PDEs). The proposed methodolog...
TL;DR: In this paper, the front nonlinear block is allowed to be the memory of hysteresis type, which is a special case of the Hammerstein-Wiener model, where the memory can be any nonlinear unit.
Abstract: This paper deals with the identification of Hammerstein–Wiener models. The novelty lies in the fact that the front nonlinear block is allowed to be the memory of hysteresis type. The latter is any ...
TL;DR: The main aim of this study is to propose a novel framework where spectral and pseudospectral problems include some structured uncertainty, achieving robust optimal control designs guaranteeing the ‘best worst-case performance’.
Abstract: Spectral and Pseudospectral methods have been widely considered in diverse optimal control applications, usually where energy optimisation is required. Although such methods are a good way to ensur...
TL;DR: It is proved that, under suitable fast sampling, (global) exponential input-to-state stability with respect to both these external inputs is guaranteed.
Abstract: In this paper we deal with the problem of global exponential practical stability preservation for globally Lipschitz time-delay systems, by Euler emulation of continuous-time dynamic output feedbac...
TL;DR: An evasion-region based geometric method is proposed to solve the Lifeline Differential Game with limited lifetime in a plane which is divided by the lifeline into a play region and a goal region and the concept of the limited lifetime within which the evader has to achieve its goal is introduced.
Abstract: This paper considers the Lifeline Differential Game with limited lifetime in a plane which is divided by the lifeline into a play region and a goal region. A single evader aims at entering the goal...
TL;DR: In this paper, the fixed-time stochastic consensus problem of multi-agent systems with fixed and switching topologies is investigated and a class of convolutional models is developed to realise the Fixed-time Stochastic consensus.
Abstract: In this paper, the fixed-time stochastic consensus problem of multi-agent systems with fixed and switching topologies is investigated. To realise the fixed-time stochastic consensus, a class of con...
TL;DR: It is proved that, under certain conditions on the edge lengths of the triangulated desired formation and control gains, the distributed controller ensures the almost-global asymptotic stability of the correct formation and is coordinate frame invariant.
Abstract: A method for dealing with the problem of convergence to incorrect equilibrium points of distance-based formation controllers was recently proposed by introducing an additional controlled variable, ...
TL;DR: This paper addresses the global stabilisation via adaptive event-triggered output-feedback for a class of uncertain nonlinear systems with large uncertainties and linearly unmeasured states dependent growth for the first time in the event- Triggered framework by integrating compensation and time-varying strategies.
Abstract: This paper addresses the global stabilisation via adaptive event-triggered output-feedback for a class of uncertain nonlinear systems. Remarkably, the systems under investigation simultaneously all...
TL;DR: A leaderless consensus-based formation control law with global convergence domain for multiple nonholonomic vehicles with parallel desired formations for multi-vehicle consensus is proposed.
Abstract: This paper proposed a leaderless consensus-based formation control law with global convergence domain for multiple nonholonomic vehicles. We firstly studied the consensus control for two vehicles, ...