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Factorized Kalman filter implementation for aided inertial navigation systems
(Master thesis, 2022)For å undersøke om NTNU UAVlabs navigasjonssystemsprogramvare for simulering av treghetsnavigasjon kunne forbedres i tilfeller der målevektoren er stor, så utførte vi et eksperiment der vi sammenlignet tre variasjoner av ... -
Fall Detection for the Elderly using Microsoft Kinect
(Master thesis, 2014)This thesis explores the use of Microsoft Kinect for fall detection of elders. Strengths and weaknesses are analyzed, and typical problems encountered when using the Kinect for fall detection in a home environment are ... -
Farmed Atlantic salmon (Salmo salar L.) avoid intrusive objects in cages: The influence of object shape, size and colour, and fish length
(Peer reviewed; Journal article, 2024)Underwater vehicles and other mobile platforms are seeing increased use as tools within fish farming, particularly due to current trends towards Precision Farming practices, and more exposed farming sites. Although many ... -
Fast and accurate time tracking using smartwatches
(Master thesis, 2021)Mennesker foretrekker noen aktiviteter fremfor andre og evne til å kontrollere hvordan en bruker tid er vist til å korrelere med stressnivå og akademisk prestasjon. Mennesker opplevelse av tid er kjent for å være variabel. ... -
Fast divergence-conforming reduced basis methods for stationary and transient flow problems
(Peer reviewed; Journal article, 2020)Reduced basis methods (RB methods or RBMs) form one of the most promising techniques to deliver numerical solutions of parametrized PDEs in real-time with reasonable accuracy [1]. For the Navier-Stokes equation, RBMs based ... -
Fast Optical Flow Estimation for End-Effector Stabilization
(Master thesis, 2020)Målet med denne oppgaven var å undersøke og utvikle en høyhastighetstilstandsberegner med målet å stabilisere en mekansik arm montert under et omnidireksjonelt miniatyrisert luftfartøy. Rask (> 100hz) og nøyaktig (mm ... -
Fast Pressure Control in Managed Pressure Drilling
(Master thesis, 2014)In drilling operations, it is of great importance to efficiently and safely control the pressure in the well. To avoid possible damage to the reservoir, equipment, personnel and the environment, the pressure in the well ... -
Fault detection in glucose control: Is it time to move beyond CGM data?
(Journal article; Peer reviewed, 2018)People with diabetes mellitus type 1 could benefit from fully automated systems for glucose control. However, faults in any component of the system can severely compromise the safety of the user. An increasing degree of ... -
Fault Detection, Localization and Clearance for MMC based on Indirect Finite Control Set Model Predictive Control
(Chapter, 2023)In this paper, indirect finite control set model predictive control (I-FCS-MPC) is used for detecting, localizing, and tolerating open-circuit failures in the transistors without the use of arm voltage sensors. The fault ... -
Fault diagnosis of downhole drilling incidents using adaptive observers and statistical change detection
(Journal article; Peer reviewed, 2015)Downhole abnormal incidents during oil and gas drilling cause costly delays, and may also potentially lead to dangerous scenarios. Different incidents will cause changes to different parts of the physics of the process. ... -
Fault Tolerant Control for automated Managed Pressure Drilling
(Master thesis, 2012)In the last years the cost for rig rental has become very high. To reduce total cost it has been necessary to increase the cost efficiency when drilling to improve profit. One way to improve profit is to reduce the ... -
Fault tolerant control of a proton exchange membrane fuel cell using Takagi–Sugeno virtual actuators
(Journal article, 2016)In this paper, a fault tolerant control (FTC) strategy for proton exchange membrane (PEM) fuel cells based on the use of virtual actuators and the Takagi–Sugeno (TS) approach is proposed. The overall solution relies on ... -
Fault tolerant control of uncertain dynamical systems using interval virtual actuators
(Journal article; Peer reviewed, 2017)In this paper, a model reference fault tolerant control strategy based on a reconfiguration of the reference model, with the addition of a virtual actuator block, is presented for uncertain systems affected by disturbances ... -
Fault-tolerant control allocation for overactuated nonlinear systems
(Journal article; Peer reviewed, 2017)This paper addresses the problem of fault-tolerant control allocation for input affine nonlinear systems. The proposed scheme is divided in three main tasks: fault detection and estimation using a nonlinear observer, fault ... -
Fault-tolerant control allocation: an Unknown Input Observer based approach with constrained output fault directions
(Journal article; Peer reviewed, 2013)This paper focuses on the use of unknown input observers for detection and isolation of actuator and effector faults with control reconfiguration in overactuated systems. The control allocation actively uses input redundancy ... -
Fault-tolerant input allocation with actuator dynamics: finite-time control reconfiguration
(Journal article, 2014)This paper focuses on fault tolerant control allocation for overactuated systems with actuator dynamics. The proposed scheme for fault detection and isolation is based on unknown input observers and the main contribution ... -
Fault-tolerant Position-Mooring Control for Offshore Vessels
(Journal article; Peer reviewed, 2018)Fault-tolerance is crucial to maintain safety in offshore operations. The objective of this paper is to show how systematic analysis and design of fault-tolerance is conducted for a complex automation system, exemplified ... -
Fault-tolerant Sensor Fusion Based on Inertial Measurements and GNSS
(Master thesis, 2013)The standard observer for inertial navigation system (INS) have for many years been the extended Kalman filter. Due to extensive research, in recent years, on nonlinear observer applied with low-cost inertial sensors can ... -
Fault-Tolerant UAV Flight Control System
(Master thesis, 2013)The main focus of this master s thesis is fault-tolerant control systems (FTCSs) for unmanned aerial vehicles (UAVs). The goals are to develop an automatic-flight control system (AFCS) with fault detection and isolation ... -
Feasibility of early meal detection based on abdominal sound.
(Journal article; Peer reviewed, 2019)Background In classical approaches for an artificial pancreas, continuous glucose monitoring (CGM) is the only measured variable used for insulin dosing and additional control functions. The CGM values are subject to time ...