Analysis of FPSO station keeping characteristics

statistical analysis of frost characteristics in saghez weather station

introduction frost is one of the most hazardous natural phenomena which it is at times accompanied by abundant damages in the life and properties. freezing and frost are very important for agricultural products in different stages of the growth. this is because, in case of happening, it results in the reduction of the products. frost is the stage of water freezing. in such condition, when the a...

Online Approximate Optimal Station Keeping of an Autonomous Underwater Vehicle

Online approximation of an optimal station keeping strategy for a fully actuated six degrees-of-freedom autonomous underwater vehicle is considered. The developed controller is an approximation of the solution to a two player zero-sum game where the controller is the minimizing player and an external disturbance is the maximizing player. The solution is approximated using a reinforcement learni...

High-Order Optimal Station Keeping of Geo- stationary Satellites

Nominal space trajectories are usually designed by solving an optimal control problem that maximizes the payload launch-mass ratio while achieving the primary mission goals. However, uncertainties and disturbances affect the spacecraft dynamics in real scenarios. This draws the designer towards the development of optimal feedback control strategies that assure the satisfaction of the mission go...

Station-keeping Simulation of a Non-moored Wec

Vision Based Station Keeping and Docking for Floating Robots

This thesis describes a method of vision based station keeping and docking for floating robots. Due to the motion disturbances in the environment, these tasks are important to keep the vehicle stabilized relative to an external reference frame. A vision-based tracking system is used to measure the image deformations, as the vehicle moves with respect to a docking station. A planar surface is ch...