Blar i ODA Open Digital Archive på forfatter "Hassani, Vahid"

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 (Applied Ocean Research;Volume 97, April 2020, Journal article; Peer reviewed, 2020-01-18)

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, ...

A Deep Learning Approach To Dead-Reckoning Navigation For Autonomous Underwater Vehicles With Limited Sensor Payloads

Saksvik, Ivar; Alcocer, Alex; Hassani, Vahid (OCEANS;OCEANS 2021: San Diego – Porto, Conference object, 2022)

This paper presents a deep learning approach to aid dead-reckoning (DR) navigation using a limited sensor suite. A Recurrent Neural Network (RNN) was developed to predict the relative horizontal velocities of an Autonomous ...

Design and Development of a Bio-Inspired Flying Drone

Halseth, Alexander (Master thesis, 2023)

This thesis presents the design, development, and testing of a bio-inspired drone with morphing wing capabilities to enhance flight performance and versatility by mimicking the adaptability of natural fliers. The research ...

Design and verification of a sway-yaw control system for Surface Effect Ships using vent valves

Teigland, Håkon; Hassani, Vahid; Auestad, Øyvind Fidje (IFAC-PapersOnLine;Volume 52, Issue 21, 2019, Journal article; Journal article; Peer reviewed, 2019-12-26)

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 ...

Development and control of a Hybrid VTOL-UAV

Boniface, Pierre Odin Holt (Master thesis, 2023)

This study proposes a comprehensive design and construction methodology for a novel tri-copter tilt-rotor Vertical Take-Off and Landing (VTOL) Unmanned Aerial Vehicle (UAV) dubbed SOAR. SOAR is designed with the dual ...

Experimental Results for Pitch Damping in Speed and Wave for a Surface Effect Ship with Split Air Cushion

Hassani, Vahid; Auestad, Øyvind; Nataletti, Marco (Control Technology and Applications (CCTA);2020 IEEE Conference on Control Technology and Applications (CCTA), Conference object, 2020-09-28)

This paper presents experimental results in damping the pitch motion on a Surface Effect Ship (SES) in high vessel speeds in presence of regular wave. The SES is a marine craft supported by pressurized air cushion. It ...

Hybrid Collision Avoidance with Moving Obstacles

Chai, Yi; Hassani, Vahid (IFAC-PapersOnLine;Volume 52, Issue 21, 2019, Journal article; Peer reviewed, 2019-12-26)

This paper proposes a hybrid collision avoidance (COLAV) approach based on the integration of a global path planning algorithm and a reactive collision avoidance technique. This combination provides a robust path planning ...

Making an aI powered ASV

Kjelsaas, Magnus (ACIT;2022, Master thesis, 2022)

This thesis presents my master thesis project on creating an Autonomous Surface Vehicle that is designed to transport humans and goods. The vessel itself is not designed to carry neither humans nor goods, but is used as ...

Marker free 6D pose estimation for underwater vehicles with monocular RGB cameras

Weydahl, Håkon (ACIT;2022, Master thesis, 2022)

Unmanned underwater vehicles (UUV) are important for industry, science and explora- tion. A key step in increasing their autonomy and lowering costs is performing 6D pose estimation on objects it interacts with. This ...

Operator focused automation of ROV operations

Teigland, Håkon; Hassani, Vahid; Møller, Ments Tore (Symposium on Autonomous Underwater Vehicle Technology (AUV); 2020 IEEE/OES Autonomous Underwater Vehicles Symposium (AUV), Journal article; Peer reviewed, 2020-11-30)

Aiming to provide higher level of autonomy in operation of Remotely Operated Vehicles (ROVs) in subsea industries, this paper aims at identifying the tasks in ROV operations that would see the greatest benefits from ...

Surface Effect Ship with Four Air Cushions Part I: Dynamic Modeling and Simulation

Haukeland, Ola; Hassani, Vahid; Auestad, Øyvind Fidje (IFAC-PapersOnLine;Volume 52, Issue 21, 2019, Journal article; Peer reviewed, 2019-12-26)

This paper deals with dynamic modelling and numerical simulations of a Surface Effect Ship (SES) with split cushion. Traditionally, a SES is a catamaran with front and aft seals equipped with lift fans that could fill ...

Surface Effect Ship with Four Air Cushions Part II: Roll and Pitch Damping

Haukland, Ola; Hassani, Vahid; Auestad, Øyvind Fidje (IFAC-PapersOnLine;Volume 52, Issue 21, 2019, Journal article; Peer reviewed, 2019-12-26)

This paper introduce damping of roll and pitch motion on a Surface Effect Ship (SES) in low vessel speeds. The SES consist of two side-hulls, a reinforced rubber bow and stern seal skirt system and four air cushion. The ...

Topics in guidance, navigation & control of underwater gliders

Saksvik, Ivar Bjørgo (ACIT;2022, Master thesis, 2022)

This thesis is concerned with the topics of modeling, guidance, navigation, and control of underwater gliders, related to a special class of autonomous underwater vehicles (AUVs). Gliders main source of locomotion is a ...

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. (Applied Ocean Research;Volume 97, April 2020, Journal article; Peer reviewed, 2020-01-28)

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 ...