Abstract
The proper control of the maximum convergence time toward a desired motion or trajectory is highly recommended for Unmanned Surface Vehicles (USV) in the case of autonomous trajectory tracking navigation and obstacle avoidance scenarios. This manuscript proposes to control the convergence time of an adaptive sliding mode controller applied to an autonomous vessel prototype subject to bounded perturbations. In the proposed approach, the maximum settling time is defined as a user input conditioning the controller design and tuning. To guarantee such convergence time to a small neighborhood of the sliding surface, the adaptive law is obtained through a Lyapunov function. The proposed motion and trajectory controller is then implemented on a USV prototype subject to parametric uncertainties and external perturbations. The experiments demonstrate the ability of the controller to constrain the sliding variable to the desired closed-loop dynamics and converge within the desired settling time.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.