نتایج جستجو برای: quadrotor

تعداد نتایج: 1445  

in the past decade, paying attention to the vertical fliers has been noted by most of the scientist and researchers, because of their exclusive features. The special capabilities of these, reducing radar identifier, low risk for human life, no restrictions on size and uses such as photography, survey, press coverage, checking, power lines, meteorological analysis, traffic, monitoring, in urban ...

2012
Abhijit Das Frank L. Lewis Kamesh Subbarao

Nowadays unmanned rotorcraft are designed to operate with greater agility, rapid maneuvering, and are capable of work in degraded environments such as wind gusts etc. The control of this rotorcraft is a subject of research especially in applications such as rescue, surveillance, inspection, mapping etc. For these applications, the ability of the rotorcraft to maneuver sharply and hover precisel...

Journal: :Journal of Sensors 2021

Wind disturbance could render thrust and power variation or even causing roll which is difficult to maintain a steady flight in gust especially when the horizontal vertical wind involved. In this paper, are presented study influence of on aerodynamic characteristics quadrotor aircraft hovering by experiments numerical simulations. First, simplified model with was analyzed detail. Also, low-spee...

2016
Grady Williams Nolan Wagener Brian Goldfain Paul Drews James M. Rehg Byron Boots Evangelos A. Theodorou

We introduce an information theoretic model predictive control (MPC) algorithm that is capable of controlling systems with dynamics represented by multi-layer neural networks and subject to complex cost criteria. The proposed approach is validated in two difficult simulation scenarios, a cart-pole swing up and quadrotor navigation task, and on real hardware on a 1/5th scale vehicle in an aggres...

Journal: :Journal of Intelligent and Robotic Systems 2010
Ian D. Cowling Oleg A. Yakimenko James F. Whidborne Alastair K. Cooke

This paper proposes a real time control algorithm for autonomous operation of a quadrotor unmanned air vehicle. The quadrotor is a small agile vehicle, which as well as being a excellent test bed for advanced control techniques could also be suitable for internal surveillance, search and rescue and remote inspection. The proposed control scheme incorporates two key aspects of autonomy; trajecto...

Journal: :IEEE Access 2023

Quadrotor systems are becoming increasingly popular in various applications due to their maneuverability and versatility. Controlling these accurately is crucial ensure stability safety. This research paper proposes the implementation of two advanced controllers with integer fractional order quadrotor systems. The purpose study enhance control performance, robustness, accuracy system, highlight...

Journal: :Journal of Industrial and Management Optimization 2022

<p style='text-indent:20px;'>In this paper, we first design a motion planning system based on the Batch Informed Trees (BIT*) algorithm for quadrotor and linear model predictive control (LMPC) is applied to solve path tracking problem quadrotor. BIT* used plan barrier-free trajectory quickly in an obstructed environment. Then apply full state track generated trajectory. Finally, simulatio...

Journal: :IFAC-PapersOnLine 2022

This paper presents a model reference attitude tracking controller design for quadrotor unmanned aerial vehicle subject to saturated actuators and external disturbances. The dynamical nonlinear of the quadrotor's is represented by an uncertain-like Takagi-Sugeno model, with exact matching on compact subset state space. generalized sector condition employed deal inputs quadrotor. LMI conditions ...

Journal: :IEEE Access 2021

In this paper, a robust and safety distributed formation control with unknown external disturbances is researched. For multi-quadrotors system, novel nonsingular terminal sliding mode strategy studied to realize the collision avoidance inter-quadrotor avoidance. The controller redesigned once system reaches small field of surface solve existence singular quadrotor fixed time convergence singula...

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