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Naveed Mazhar - IEEE Xplore Author Profile

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This paper presents the pushing and rotation of a heavy rigid body using an omnidirectional actively tilted aerial manipulator, controlled via a hybrid force/position controller. Unlike conventional unmanned aerial vehicles, the proposed system enables precise horizontal force application, making it ideal for aerial physical interaction tasks. The hybrid controller is implemented in the Robot Oper...Show More
In robotics, aerospace, and electromechanical applications, it is common practice to break the dynamics into two timescales for analysis and control design. In modern applications, the observer-based control design has gained much attention to enhance the reliability of closed-loop control. In this article, we have proposed high-gain observer-based output feedback control (OFC) for a class of nonl...Show More
This paper presents the controller design and visual-inertial state estimation using IMU and camera for the quadrotor's flight. To accomplish this, first, the mathematical modeling of the quadrotor is presented based on Newtonian mechanics. Then a controller is designed that ensures the autonomous flight of the quadrotor. To achieve a high-level practical autonomy, state estimation is the first st...Show More
This article presents the robust control framework for the longitudinal motion of the self-driving car in an uncertain environment. As a theoretical contribution, a fixed settling time sliding mode controller (FSTSMC) is proposed using barrier Lyapunov functions for a class of second-order nonlinear systems which avoids the singularity problem of fixed traditional fixed time controllers. The propo...Show More
This article involves the design of a novel path tracking control technique for the self-driving car. Fixed settling time sliding mode control (FSTSMC) with barrier Lyapunov function is implemented to deal with the non-linear lateral dynamics and to ensure stable standard double-lane-change (DLC) maneuver of self-driving cars in the presence of unknown lateral tire forces and parametric uncertaint...Show More
This paper is about the sliding mode control of quadrotor UAV’s using nonlinear parabolic sliding surface. Quadrotor has six degrees of freedom and four actuators. It has the ability to vertically take off and land. It is necessary to have control over six degrees of freedom for proper drive. For many years sliding mode control of quadrotor has been used. There are some disadvantages of sliding mo...Show More
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 (HGO) is sensitive to noise and external disturbances. Therefore, EHGO is used to reject the effect of noise and external disturbances on the output of the system. A feedback linearizing control (FLC) is used to track the de...Show More
This article presents the robust lateral control of an autonomous vehicle in the presence of unknown lateral tire forces, road curvature angle, and parametric uncertainties. The sliding mode control (SMC) with barrier Lyapunov function is implemented to guarantee the system robustness while maintaining the outputs of the system in realistic bounds. Following the model reduction approach, the slow ...Show More
Single link flexible joint robotic manipulators are highly nonlinear systems is being widely used in many industries which are most of the time suffer from external disturbances and dynamical parametric uncertainties. In this paper, robust nonlinear output feedback tracking control is designed for single-link flexible joint robotic manipulator system. The designed controller is based on the feedba...Show More
In this paper, a robust output feedback control (OFC) is designed for the flexible joint single link robotic manipulator. The control design is based on the feedback linearization control technique which is opted owing to its simplicity. The state estimation is carried out using a high-gain observer (HGO). Due to its vulnerability to parametric variations and external disturbances, an extended ord...Show More
In this article, a finite-time robust tracking control of output constrained multirotor unmanned aerial vehicle (UAV) is proposed. A finite-time sliding mode control (SMC) technique with barrier Lyapunov function (BLF) is used to assure robustness of the derived control laws while maintaining the output in specified constraints. A comparison of the proposed controller is carried out with conventio...Show More
The robust decentralized formation control for the multiagent quadrotor is investigated in this article. The leaderless formation protocol is proposed for a class of square multi-input multi-output nonlinear multiagent systems with an undirected communication graph. The six degree of freedom underactuated nonlinear model of multiagent quadrotor is considered and altered to a four-input four-output...Show More
Robust output tracking of uncertain systems requires nonlinear controllers due to approximate parameters and exogenous disturbances. However, the design of nonlinear control is often more complex for practical implementation. This article presents a simple nonlinear robust control for the ball and beam system based on integral sliding mode control. In addition to this a low pass filter is designed...Show More
In this paper, the mathematical modeling and model-based control of the planar rigid-flexible manipulator has been presented. Small deflection has been assumed in flexible link. Modeling is based on frame transformation matrices which describe the rotation of the frames. The Lagrangian approach has been used to derive the ideal dynamic model of the rigid-flexible manipulator, for which kinetic and...Show More
Naval applications need refined regulation, to meet modern era standards, which eventually leads to the requirement of more accurate mathematical modeling of all subsystems. All naval autonomous systems are equipped with electromechanical actuators, which are often controlled for linear operating range and nonlinearities which may lead to chaotic behavior, are ignored. Additionally, the necessary ...Show More
In modern technological era research in Mechanical Ventilators (MV) has drastically increased in designing model based MV treatment. In model based MV treatment mathematical model of lung is used to detect lungs diseases. In proposed work, inspiration and expiration mechanism of lungs has been modelled using Bond Graphs. Lung segments are assigned Hydraulic analogies using cylinders and accumulato...Show More
In this modern era research in mechanical ventilator model designing has increased a lot. Mathematical model of lungs is used to distinguish the pulmonary diseases. In this work bond graph model of breathing mechanism i.e. inspiration and expiration of lungs is developed. Hydraulic analogies are allocated to lungs using cylinders and accumulators. From nostrils to trachea single cylinder is consid...Show More
Micro gyroscopes are among the rapidly aggrandizing field of the micro electro mechanical systems (MEMS), which is procured with its extensive range of applications around the globe. This paper depicts an innovated approach of designing and modeling of a novel brawny multi-mass gyroscope to acquire dynamic motion amplification and spacious bandwidth. The proposed resonator block is accompanied by ...Show More