Blar i SINTEF Open på forfatter "Hassani, Vahid"
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Adaptive Wave Filtering for Dynamic Positioning of Marine Vessels Using Maximum Likelihood Identification: Theory and Experiments
Hassani, Vahid; Sørensen, Asgeir Johan; Pascoal, Antonio (Chapter, 2013)This paper addresses a filtering problem that arises in the design of dynamic positioning systems for ships and offshore rigs subjected to the influence of sea waves. The dynamic model of the vessel captures explicitly the ... -
Comparing generic and vectorial nonlinear manoeuvring models and parameter estimation using optimal truncated least square support vector machine
Xu, Haitong; Hassani, Vahid; Soares, C. Guedes (Journal article; Peer reviewed, 2020-04)An optimal truncated least square support vector machine (LS-SVM) is proposed for the parameter estimation of nonlinear manoeuvring models based on captive manoeuvring tests. Two classical nonlinear manoeuvring models, ... -
Cyber Security Issues in Navigation Systems of Marine Vessels From Control Perspective
Hassani, Vahid; Crasta, Naveena; Pascoal, Antonio (ASME Digital colletion;OMAE2017-61771, Chapter, 2017-06-25)Autonomous marine vessels are the way forward to revolutionize maritime operations. However, the safety and success of autonomous missions depend critically on the availability of a reliable positioning system and time ... -
Design and verification of a sway-yaw control system for Surface Effect Ships using vent valves
Teigland, Håkon; Hassani, Vahid; Auestad, Øyvind Fidje (Journal article; Peer reviewed, 2019)For an offshore worker in the oil and gas industry, the helicopter transport is the activity associated with the highest risk. An alternative to helicopter crew transfers is to use Surface Effect Ships (SES) to transport ... -
Detection of mooring line failures using Dynamic Hypothesis Testing
Hassani, Vahid; Pascoal, António M.; Sørensen, Asgeir Johan (Journal article; Peer reviewed, 2018-07-01)This article proposes a novel methodology for the detection of mooring line breakage in thruster assisted position mooring (PM) systems, when no measurements of the tensions on the mooring lines are available. For dynamic ... -
Operability analysis of control system for ROV launch-and-recovery from autonomous surface vessel
Tran, Celine; Gushkov, Ivan Ivanov; Nordvik, Kristoffer; Røang, Simen Troye; Lysthaug, Simen Brodalen; Ommani, Babak; Fossen, Thor I.; Hassani, Vahid; Smines, Vidar; Johansen, Tor Arne (Journal article; Peer reviewed, 2023)The launch and recovery of equipment such as remotely operated vehicles (ROVs) is a critical task that defines the operability limits of many marine operations. This paper considers the analysis of control systems that are ... -
Path planning for marine vehicles using Bezier curves
Hassani, Vahid; Lande, Simen V. (Journal article; Peer reviewed, 2018-05)Over the past few years maritime sector has witnessed an increasing interest in use of autonomous ships and in particular Autonomous Surface Vehicles (ASV) in complex applications with high associated risks. There is an ... -
Real-Time Parameter Estimation of a Nonlinear Vessel Steering Model Using a Support Vector Machine
Xu, Haitong; Hinostroza, M. A.; Hassani, Vahid; Guedes Soares, C (Journal article; Peer reviewed, 2019-06-19)The least-square support vector machine (LS-SVM) is used to estimate the dynamic parameters of a nonlinear marine vessel steering model in real-time. First, maneuvering tests are carried out based on a scaled free-running ... -
Robust Dynamic Positioning of offshore vessels using mixed-μ synthesis modeling, design, and practice
Hassani, Vahid; Sørensen, Asgeir Johan; Pascoal, A.M.; Athans, Michael (Journal article; Peer reviewed, 2017-01-31)This paper describes a procedure to design robust controllers for Dynamic Positioning (DP) of ships and offshore rigs subjected to the influence of sea waves, currents, and wind loads using H∞ and mixed-μ techniques. The ... -
Target Tracking of an Underwater Glider Using a Small Unmanned Surface Vessel
Saksvik, Ivar; Alcocer, Alex; Hassani, Vahid; Pascoal, Antonio (Peer reviewed; Journal article, 2022)This paper proposes a methodology for target tracking of an underwater glider using an unmanned surface vessel (USV). The topside USV is assumed to have knowledge about the position of the underwater glider from an acoustic ... -
Truncated least square support vector machine for parameter estimation of a nonlinear manoeuvring model based on PMM tests
Xu, Haitong; Hassani, Vahid; Guedes-Soares, C. (Journal article; Peer reviewed, 2020-04)A new version of least square support vector machine (LS-SVM), the truncated LS-SVM, is proposed to estimate the nondimensionalized hydrodynamic coefficients. Truncated LS-SVM is shown to be an efficient and robust method ... -
Uncertainty analysis of the hydrodynamic coefficients estimation of a nonlinear manoeuvring model based on planar motion mechanism tests
Xu, Haitong; Hassani, Vahid; Guedes Soares, Carlos (Journal article; Peer reviewed, 2019-02-01)Uncertainty analysis of the identified hydrodynamic coefficients of a nonlinear manoeuvring model is presented in this paper. The classical parameter estimation method, Least Square, is briefly introduced, and the uncertainty ...