Results 31 to 40 of about 88,617 (212)
Modeling and control of a quadrotor UAV with tilting propellers [PDF]
2012 IEEE International Conference on Robotics and Automation, 2012 Standard quadrotor UAVs possess a limited mobility because of their inherent underactuation, i.e., availability of 4 independent control inputs (the 4 propeller spinning velocities) vs. the 6 dofs parameterizing the quadrotor position/ orientation in space.
Markus Ryll +2 more
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Journal of Mechatronics, Electrical Power, and Vehicular Technology, 2020 Unmanned aerial vehicle (UAV) quadrotors have developed rapidly and continue to advance together with the development of new supporting technologies. However, the use of one quadrotor has many obstacles and compromises the ability of a UAV to complete ...
Endra Joelianto +2 more
doaj +1 more source
Adaptive finite-time control for quadrotor UAV with time-varying load based on disturbance observer
Journal of Hebei University of Science and Technology, 2021 For the quadrotor unmanned aerial vehicle (UAV) system with time-varying load,the compound finite-time control strategy was proposed in the presence of unknown external disturbances and unknown drag coefficients.Firstly,a complete mathematical model of ...
Xiaojing1 WU +4 more
doaj +1 more source
Robust Optimal Control of Quadrotor UAVs
IEEE Access, 2013 This paper provides the design and implementation of an L1-optimal control of a quadrotor unmanned aerial vehicle (UAV). The quadrotor UAV is an underactuated rigid body with four propellers that generate forces along the rotor axes. These four forces are used to achieve asymptotic tracking of four outputs, namely the position of the center of mass of ...
Aykut C. Satici +2 more
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Nonlinear PID controller design for a 6-DOF UAV quadrotor system
Engineering Science and Technology, an International Journal, 2019 A Nonlinear PID (NLPID) controller is proposed to stabilize the translational and rotational motion of a 6-Degree of Freedom (DOF) unmanned aerial vehicles (UAV) quadrotor system and enforce it to track a given trajectory with minimum energy and error ...
Aws Abdulsalam Najm +1 more
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A modular software architecture for UAVs [PDF]
, 2013 There have been several attempts to create scalable and hardware independent software architectures for Unmanned Aerial Vehicles (UAV). In this work, we propose an onboard architecture for UAVs where hardware abstraction, data storage and communication ...
Güney, Mehmet Ali +9 more
core +1 more source
Back-stepping sliding mode control method for quadrotor UAV with actuator failure
The Journal of Engineering, 2019 In this article, a fault tolerant controller (FTC) based on back-stepping sliding mode is proposed for a quadrotor unmanned aerial vehicle (UAV) with single-rotor failure.
Zhiqiang Zhu, Songyin Cao
doaj +1 more source
Performance evaluation of RW‐Quadrotor and Bi‐Quadrotor for payload delivery
IET Intelligent Transport Systems, 2023 Payload delivery is one of the many Unmanned Aerial Vehicle (UAV) applications that save time, energy, and human resources. The present simulation study compares rotary‐wing quadrotors (RW‐Quadrotors) and tail‐sitter biplane quadrotors (Bi‐Quadrotors ...
Nihal Dalwadi +2 more
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Safety Control for the Quadrotor Unmanned Aerial Vehicle Despite Complete Lose of One Rotor
IEEE Access, 2023 This paper focus on the fault tolerance control associated with complete loss of controller one rotor for the quadrotor unmanned aerial vehicle(UAV). As the quadrotor UAV is widely used in many industrial filed, it is critical to ensure the safety flight
Xun Gu, Yi Tian
doaj +1 more source
Obstacle Avoidance System for a Quadrotor UAV
Infotech@Aerospace 2012, 2012 The implementation of the S&C capability was based on the Rapidly-Exploring Random Tree (RRT) and optimal path algorithms. Both of these algorithms required that a map of the surroundings be known prior to navigating between two or more designated waypoints. The location of the quadrotor was determined using IMU data and quadrotor dynamics.
Joseph Wagster +3 more
openaire +2 more sources