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Optimal and adaptive control of underwater vehicles [PDF]

Modeling, Identification and Control, 1994
This article contains a continuous-time optimal and adaptive control scheme for underwater vehicles moving in six degrees of freedom. The control scheme is an extension of the algorithm ofJohansson (1990) and a modification of the algorithm found in ...
Svein I. Sagatun, Rolf Johansson
doaj   +1 more source

The influence of anthropometric indicators on the availability of vitamin D in residents of Southern Ukraine

Journal of Education, Health and Sport, 2023
The social role of the problem of obesity is determined by the threat of disability and a decrease in overall life expectancy due to the frequent development of serious concomitant diseases.
Anton Shanyhin, Volodymyr Babienko, Anastasiya Rozhnova, Yevhen Strakhov   +3 more
doaj   +1 more source

Deception in Optimal Control [PDF]

2018 56th Annual Allerton Conference on Communication, Control, and Computing (Allerton), 2018
In this paper, we consider an adversarial scenario where one agent seeks to achieve an objective and its adversary seeks to learn the agent's intentions and prevent the agent from achieving its objective. The agent has an incentive to try to deceive the adversary about its intentions, while at the same time working to achieve its objective. The primary
Melkior Ornik, Ufuk Topcu
openaire   +3 more sources

Estimation of travel time reduction for ice-breaking ships when considering ice information data

Annals of Glaciology
In light of the recent increase in polar shipping and potential future increase with continued climate change reliable routing in ice-covered waters becomes increasingly important for environmental, economic and safety concerns.
Bernhard Schmitz, Christine Eis, H. Jakob Bünger, Christof Büskens   +3 more
doaj   +1 more source

Obstacle Avoidance Control of the AGV With Actuator Dead Zones Based on Fixed-Time Disturbance Observers and Command Filtering

IEEE Access
This study explores an obstacle avoidance control approach that takes into account both actuator dead zones and unpredictable disturbances in environments with moving obstacles.
Pengfei Zhang, Yuanpei Ding, Ye Chen
doaj   +1 more source

A Fast Predictive Control Method for Vehicle Path Tracking Based on a Recurrent Neural Network

IEEE Access
The paper introduces a Fast Model Predictive Control (FMPC) approach for vehicle path tracking, addressing the challenge of real-time performance in highly nonlinear systems.
Xialai Wu, Ling Lin, Junghui Chen, Shuxin Du   +3 more
doaj   +1 more source

A Distributed Algorithm for Controlling Continuous and Discrete Variables in a Radial Distribution Grid

IEEE Access, 2023
The increased integration of distributed energy resources (DERs) in the distribution network with intermittent generation profiles will likely make voltage regulation a difficult task.
Jonatan Ralf Axel Klemets, Merkebu Zenebe Degefa   +1 more
doaj   +1 more source

Ricci solitons on almost Kenmotsu 3-manifolds

Open Mathematics, 2017
Let (M3, g) be an almost Kenmotsu 3-manifold such that the Reeb vector field is an eigenvector field of the Ricci operator. In this paper, we prove that if g represents a Ricci soliton whose potential vector field is orthogonal to the Reeb vector field ...
Wang Yaning
doaj   +1 more source

Obstacle Avoidance Control for Autonomous Surface Vehicles Using Elliptical Obstacle Model Based on Barrier Lyapunov Function and Model Predictive Control

Journal of Marine Science and Engineering
This study explores positioning and obstacle avoidance control for autonomous surface vehicles (ASVs) by considering equivalent elliptical-shaped obstacles.
Pengfei Zhang, Yuanpei Ding, Shuxin Du
doaj   +1 more source

A class of 3-dimensional almost Kenmotsu manifolds with harmonic curvature tensors

Open Mathematics, 2016
Let M3 be a three-dimensional almost Kenmotsu manifold satisfying ▽ξh = 0. In this paper, we prove that the curvature tensor of M3 is harmonic if and only if M3 is locally isometric to either the hyperbolic space ℍ3(-1) or the Riemannian product ℍ2(−4) ×
Wang Yaning
doaj   +1 more source