Blar i NTNU Open på forfatter "Sokolova, Nadezda"
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Analysis of 5G and LTE Signals for Opportunistic Navigation and Time Holdover
Winter, Adrian; Morrison, Aiden J; Sokolova, Nadezda (Peer reviewed; Journal article, 2023)The purpose of this study was to evaluate the stability and therefore suitability of available fifth generation (5G) and long-term evolution (LTE) signals for positioning navigation and timing (PNT) purposes with particular ... -
Communication and cybersecurity for autonomous passenger ferry
Amro, Ahmed (Doctoral theses at NTNU;2023:137, Doctoral thesis, 2023)Recent innovations in the smart city and the maritime domains have led to the proposition of a new mode of transportation utilizing Autonomous Passenger Ships (APS) or ferries in inland waterways. The novelty of the APS ... -
Concept for Landing Unmanned Aerial Vehicles using a Ground Based Augmentation System
Breedveld, Petter Diderik (Master thesis, 2019)Denne oppgaven, Concept for Landing Unmanned Aerial Vehicles using a Ground Based Augmentation System, fokuserer på mulighetene for autonom landing av kommersielle ubemannede luftfartøy (UAV) ved å integrere det eksisterende ... -
GNSS-Denied Navigation using Direction of Arrival from Low-Cost Software Defined Radios and Signals of Opportunity
Winter, Adrian; Sokolova, Nadezda; Morrison, Aiden J; Johansen, Tor Arne (Journal article, 2022)This paper describes a novel navigation system for outdoor navigation in conditions where reliable satellite navigation cannot be assumed. It is build around inexpensive of-the-shelf hardware and could be used with several ... -
Low Cost Collaborative Jammer Localization Using a Network of UAVs
Ahmed, Naveed; Winter, Adrian; Sokolova, Nadezda (Peer reviewed; Journal article, 2021)Radio Frequency Interference (RFI), either intentional or unintentional in nature, can have significant impact on the performance of systems utilizing GNSS receivers. It can therefore be beneficial for a commercial autonomous ... -
Low-Cost Angle of Arrival-Based Auxiliary Navigation System for UAV using Signals of Opportunity
Winter, Adrian; Sokolova, Nadezda; Morrison, Aiden J; Hasler, Oliver Kevin; Johansen, Tor Arne (Peer reviewed; Journal article, 2023)Many modern devices rely on satellite navigation for reliable, precise and ubiquitous localization. While this enables technological advances that have been unthinkable a few decades ago, it also has clear implications on ... -
Navigation Algorithm-Agnostic Integrity Monitoring based on Solution Separation with Constrained Computation Time and Sensor Noise Overbounding
Bosdelekidis, Vasileios; Bryne, Torleiv Håland; Sokolova, Nadezda; Johansen, Tor Arne (Peer reviewed; Journal article, 2022)Integrity monitoring (IM) in autonomous navigation has been extensively researched, but currently available solutions are mainly applicable to specific algorithms and sensors, or limited by linearity or 'Gaussianity' ... -
Nonlinear Observer for Tightly Coupled Integrated Inertial Navigation Aided by RTK-GNSS Measurements
Hansen, Jakob Mahler; Johansen, Tor Arne; Sokolova, Nadezda; Fossen, Thor I. (Journal article; Peer reviewed, 2018)A modular nonlinear observer is considered for tightly coupled integration of inertial measurements with global satellite measurements. A real-time-kinematic (RTK) approach is utilized where the rover and base station ... -
Nonlinear Observers for Integrated INS/GNSS Navigation – Implementation Aspects
Bryne, Torleiv Håland; Hansen, Jakob Mahler; Rogne, Robert Harald; Sokolova, Nadezda; Johansen, Tor Arne; Fossen, Thor I. (Journal article, 2017)Navigation is a term with broad usage in everyday life and can mean the act of moving, moving through an unknown environment, ascertaining a craft's position, or even browsing on the Internet. Originally, the term meant ... -
Public road infrastructure inventory in degraded global navigation satellite system signal environments
Sokolova, Nadezda; Morrison, Aiden; Haakonsen, Trond Arve (Journal article; Peer reviewed, 2015)Recent advancement of land-based mobile mapping enables rapid and cost-effective collection of highquality road related spatial information. Mobile Mapping Systems (MMS) can provide spatial information with subdecimeter ... -
RFI Localization in a Collaborative Navigation Environment
Ahmed, Naveed; Sokolova, Nadezda (Peer reviewed; Journal article, 2020)Since the received GNSS signals are inherently very weak, a simple GNSS signal jammer can easily degrade the measurement quality, or completely deny GNSS signal reception at the receiver. In the context of collaborative ... -
Solution Separation-Based Integrity Monitor for Integrated GNSS/IMU/Camera Navigation: Constraining the Hypothesis Space With Deep Learning
Bosdelekidis, Vasileios; Johansen, Tor Arne; Sokolova, Nadezda; Bryne, Torleiv Håland (Peer reviewed; Journal article, 2023)This article introduces a method utilizing deep learning in typical Multiple Hypothesis Solution Separation (MHSS)-based Integrity Monitors (IMs) of autonomous vehicle navigation systems, when conventional sensors, such ... -
Theoretical Analysis of the Processof Doppler and Doppler Rate Estimation in Standard and High Sensitivity GNSS Receivers
Sokolova, Nadezda (Doktoravhandlinger ved NTNU, 1503-8181; 2011:176, Doctoral thesis, 2011)Due to the capability of the Global Positioning System (GPS) to provide accurate, stablelong-term navigation information, the use of a GPS receiver as a velocity and accelerationsensor has gained an increasing research ...