Faculty of Engineering and Science
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Optimal terminal sliding mode control for second-order motion systems
(Chapter, 2021)Terminal sliding mode (TSM) control algorithm and its non-singular refinement have been elaborated for two decades and belong, since then, to a broader class of the finite-time controllers, which are known to be robust ... -
Localization and Activity Classification of Unmanned Aerial Vehicle using mmWave FMCW Radars
(Peer reviewed; Journal article, 2021)In this article, we present a novel localization and activity classification method for aerial vehicle using mmWave frequency modulated continuous wave (FMCW) Radar. The localization and activity classification for aerial ... -
Condition Monitoring Technologies for Synthetic Fiber Ropes - a Review
(Journal article; Peer reviewed, 2017)This paper presents a review of different condition monitoring technologies for fiber ropes. Specifically, it presents an overview of the articles and patents on the subject, ranging from the early 70’s up until today with ... -
Target Classification by mmWave FMCW Radars using Machine Learning on Range-Angle Images
(Peer reviewed; Journal article, 2021)In this paper, we present a novel multiclass-target classification method for mmWave frequency modulated continuous wave (FMCW) radar operating in the frequency range of 77 - 81 GHz, based on custom range-angle heatmaps ... -
Robust output feedback control of non-collocated low-damped oscillating load
(Chapter, 2021)For systems with order of dynamics higher than two and oscillating loads with low damping, a non-collocation of the sensing and control can deteriorate robustness of the feedback and, in worst case, even bring it to ... -
Preliminary Results on Condition Monitoring of Fiber Ropes using Automatic Width and Discrete Length Measurements
(Chapter; Peer reviewed, 2017)As the offshore sector moves to deeper waters, fiber ropes have the potential to replace more traditional solutions such as steel wire ropes for deep sea lifting and heave-compensated operations. While steel wire ropes ... -
Hybrid Position/Force Control for Hydraulic Actuators
(Chapter, 2020)In this paper a novel hybrid position/force control with autonomous switching between both control modes is introduced for hydraulic actuators. A hybrid position/force control structure with feed-forwarding, full-state ... -
Rate-Splitting Random Access Mechanism for Massive Machine Type Communications in 5G Cellular Internet-of-Things
(Chapter, 2021)The cellular Internet-of-Things has resulted in the deployment of millions of machine type communication (MTC) devices under the coverage of a single gNodeB (gNB). These massive number of devices should connect to the ... -
Stability Analysis of a Linear Parameter Varying Adaptive Output Feedback Control System
(Chapter, 2021)Output feedback control systems often require an adaptive filter for properly shaping the loop transfer function, as certain system plant parameters may be uncertain or varying. This renders the overall closed loop to a ... -
Exploring freshwater challenges for conservation efforts: Insights into threatened and invasive fish species using environmental DNA
(Doctoral dissertations at University of Agder;no. 490, Doctoral thesis, 2024)Ferskvannsøkosystemer trues av habitatendringer, menneskeskapte barrierer, fremmede arter, forurensning, overfiske og klimaendringer. Selv om internasjonale lover og forskrifter støtter bevaring, kreves det fortsatt betydelig ... -
Effect of Data from Neighbouring Regions to Forecast Dengue Incidences in Different Regions of Philippines Using Artificial Neural Networks
(Journal article; Peer reviewed, 2018)Disease outbreaks forecasting is a vital component in public-health resource planning and emergency preparedness. However, the existing procedures have limitations due to the lack of analytical knowledge about spatiotemporal ... -
One-parameter robust global frequency estimator for slow-varying amplitude and noisy oscillations
(Journal article; Peer reviewed, 2022)Robust online estimation of oscillation frequency belongs to classical problems of system identification and adaptive control. The given harmonic signal can be noisy and with varying amplitude at the same time, as in the ... -
Quantization Analysis and Robust Design for Distributed Graph Filters
(Peer reviewed; Journal article, 2021)Distributed graph filters have recently found appli- cations in wireless sensor networks (WSNs) to solve distributed tasks such as reaching consensus, signal denoising, and recon- struction. However, when implemented over ... -
Fully Automated Diagnostics of Induction Motor Drives in Offshore Wind Turbine Pitch Systems Using Extended Park Vector Transform and Convolutional Neural Network
(Journal article; Peer reviewed, 2024)Due to their location and related complexities, the offshore wind farms (OWF) have higher downtimes and operation and maintenance (O&M) costs compared to their onshore counterparts. Condition monitoring could help in ... -
Soft Ordering 1-D CNN to Estimate the Capacity Factor of Windfarms for Identifying the Age-Related Performance Degradation
(Peer reviewed; Journal article, 2024)Wind energy plays a vital role in meeting the sustainable development goals set forth by the United Nations. Performance of wind energy farms degrades gradually with aging. For deriving maximum benefits from these ... -
Online Non-linear Topology Identification from Graph-connected Time Series
(Chapter; Peer reviewed, 2021)Estimating the unknown causal dependencies among graph-connected time series plays an important role in many applications, such as sensor network analysis, signal processing over cyber-physical systems, and finance ... -
Aerial Spectrum Surveying: Radio Map Estimation with Autonomous UAVs
(Journal article; Peer reviewed, 2020)Radio maps are emerging as a popular means to endow next-generation wireless communications with situational awareness. In particular, radio maps are expected to play a central role in unmanned aerial vehicle (UAV) ... -
Estimation of number of unmanned aerial vehicles in a scene utilizing acoustic signatures and machine learning
(Journal article; Peer reviewed, 2023)With the exponential growth in unmanned aerial vehicle (UAV)-based applications, there is a need to ensure safe and secure operations. From a security perspective, detecting and localizing intruder UAVs is still a challenge. ... -
Making sense of journalistic COVID-19 data visualizations: An in-depth study of two adults’ visual-numeric literacy
(Journal article; Peer reviewed, 2024)In 2020, the COVID-19 pandemic urged authorities to share quantitative information such as infection and death rates. One way of disseminating was through graphs, maps, and diagrams. Such data visualizations communicate ... -
Establishing a Health Data Marketplace: A Framework for Success
(Lecture Notes in Computer Science (LNCS); no. 17, Chapter; Peer reviewed, 2023)This study outlines essential elements needed to develop a Health Data Marketplace (HDM) by building upon an existing data platform in Norway. A comprehensive framework is proposed that accounts for technical, legal, ...
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