Robust output feedback control of single-link flexible-joint robot manipulator with matched disturbances using high gain observer

H Ullah, FM Malik, A Raza, N Mazhar, R Khan… - Sensors, 2021 - mdpi.com
This article focuses on the output feedback control of single-link flexible-joint robot
manipulators (SFJRMs) with matched disturbances and parametric uncertainties. Formally …

[HTML][HTML] Two-time-scale robust output feedback control for aircraft longitudinal dynamics via sliding mode control and high-gain observer

A Raza, FM Malik, N Mazhar, R Khan - Alexandria Engineering Journal, 2022 - Elsevier
This paper presents output feedback control for longitudinal dynamics of fixed-wing aircraft
using singular perturbation techniques. The longitudinal dynamic model is separated into …

Robust composite-disturbance observer based flight control of quadrotor attitude

N Ahmed, A Raza, SAA Shah, R Khan - Journal of Intelligent & Robotic …, 2021 - Springer
A composite disturbance observer based control (CDOBC) technique for a quadrotor attitude
is presented in this paper. The structure of CDOBC consists of a robust equivalent controller …

Robust adaptive preview control design for autonomous carrier landing of F/A-18 aircraft

AK Bhatia, J Ju, Z Ziyang, N Ahmed, A Rohra… - Aircraft Engineering …, 2021 - emerald.com
Purpose The purpose of this paper is to design an innovative autonomous carrier landing
system (ACLS) using novel robust adaptive preview control (RAPC) method, which can …

Adaptive output-feedback robust active disturbance rejection control for uncertain quadrotor with unknown disturbances

N Ahmed, SA Ali Shah - Engineering Computations, 2022 - emerald.com
Purpose In this research paper, an adaptive output-feedback robust active disturbance
rejection control (RADRC) is designed for the multiple input multiple output (MIMO) …

Part 1: robust adaptive control of quadrotor with disturbance observer

N Ahmed, A Raza, R Khan - Aircraft Engineering and Aerospace …, 2021 - emerald.com
Purpose The aim of this paper is to design a nonlinear disturbance observer-based control
(DOBC) method obtained by patching a control method developed using a robust adaptive …

Sliding mode control-based autonomous control of a tri-rotor unmanned aerial vehicle

A Raza, FM Malik, R Khan, N Mazhar… - Guidance, Navigation …, 2021 - World Scientific
A nonlinear control technique for autonomous control of a tri-rotor unmanned aerial vehicle
is presented in this paper. First, a comprehensive mathematical model is developed using …

Disturbance observer-based robust adaptive control for uncertain actuated nonlinear systemwith disturbances

N Ahmed, M Chen - Assembly Automation, 2021 - emerald.com
Purpose The aim of this research paper is to design a disturbance observer (DO)-based
robust adaptive tracking control of uncertain nonlinear system subject to unknown nonlinear …

Tracking control of flexible joint single link robotic manipulator via extended high-gain observer

H Ullah, FM Malik, A Raza, I Ahmad… - … on Applied Sciences …, 2021 - ieeexplore.ieee.org
This paper presents the output feedback control (OFC) of flexible joint single link robotic
manipulator via extended high gain observer (EHGO). Conventional high gain observer …

Finite settling time control of nonlinear systems in presence of matched perturbations using barrier Lyapunov function

S Mazhar, R Khan, FM Malik, A Saeed… - … on Robotics and …, 2021 - ieeexplore.ieee.org
In this paper, a novel control method is proposed using barrier Lyapunov function and
conventional sliding mode control such that the finite time tracking is achieved. The …