The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
A simulator was designed to be used for small AUVs that are vulnerable to external disturbances like waves or current. Using cubic Hermite interpolation and Line-Of-Sight (LOS) guidance law, an efficient path is generated whenever waypoints are randomly given. Also, the simulator includes proportional-integral-derivative (PID) controller to maneuver the Autonomous underwater vehicles (AUVs) with desired...
In this paper, we proposed a disturbance rejection control method to improve the position keeping accuracy of an underwater robot. Not like a ground robot, the controlling of a floating body is a critical requirement to acquire high quality sensor data from, for examples, a gyro, an underwater optical camera, and an imaging sonar. The proposed controller consists of a model-based robust compensator...
In the paper, the impact of atmospheric turbulence on the Unmanned Aerial Vehicles (UAV) motion is studied. The models of Dryden turbulence are discussed, and the airplane models of lateral directional under the atmospheric turbulence are deducted, the application of linear matrix inequality (LMI) is used to design a kind of robust flight control system based on H∞ control theory. The effect of the...
Deep Submarine Rescue Vehicle (DSRV) recovery in deep water can reduce the influence coming from wave, wind and current, the same as the advantage of hidden-form, where the recovery control is one of the most important subjects. The control scheme of recovery motion control of DSRV, including the dynamic positioning of the bow and the stern, must ensure that the line connecting the bow and the stern...
This paper presents the modelling of a four rotor vertical take-off and landing (VTOL) unmanned air vehicle known as the quadrotor aircraft. The paper presents a new model design method for the flight control of an autonomous quad rotor. The paper describes the controller architecture for the quadrotor as well. The dynamic model of the quad-rotor, which is an under actuated aircraft with fixed four...
In this study, interval type2 fuzzy logic (IT2FL) and PID controller is designed for swing-up position control of double inverted pendulum (DIP) system. The double inverted pendulum system consists of two rigid bars connected by a revolute joint. Mass of the revolute joint is included in the dynamic model.Rigid bars in the system are assumed to experience planar motion. The pendulum system is connected...
This paper introduces the differential-braking algorithm to control the stability of tractor semi-trailer. First, it analyses the theory of differential-braking control and confirm the control strategy that follows the ideal yaw rate of 2-DOF model. From this point of view, a PID controller has been designed. The result of the co-simulation associated with MATLAB and ADAMS shows that the differential-braking...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.