Searched for: subject%3A%22navigation%22
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Brito Lima, Pedro (author)
This thesis explores the feasibility of aerocapture manoeuvres at Venus, focusing on the challenges for an autonomous Guidance and Control (G&C) system, including a partial Navigation system simulation. Aerocapture leverages atmospheric drag for orbit insertion and presents a cost-effective alternative to traditional propulsive methods. The...
master thesis 2023
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Pore, Ameya (author), Li, Z. (author), Dall'Alba, Diego (author), Hernansanz, Albert (author), De Momi, Elena (author), Menciassi, Arianna (author), Casals Gelpi, Alicia (author), Dankelman, J. (author), Fiorini, Paolo (author), Poorten, Emmanuel Vander (author)
Increased demand for less invasive procedures has accelerated the adoption of Intraluminal Procedures (IP) and Endovascular Interventions (EI) performed through body lumens and vessels. As navigation through lumens and vessels is quite complex, interest grows to establish autonomous navigation techniques for IP and EI for reaching the target...
journal article 2023
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Tanis, Tobias (author)
Autonomous orbit determination could help reducing the growing load on ground-based deep space networks. For small satellites, orbit determination based solely on inter-satellite measurements could be a strong alternative for conventional ground-based navigation support. The possibilities of this autonomous orbit determination method are...
master thesis 2022
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Turan, E. (author), Speretta, S. (author), Gill, E.K.A. (author)
This study presents an autonomous orbit determination system based on crosslink radiometric measurements applied to a future lunar CubeSat mission to clearly highlight its advantages with respect to existing ground-based navigation strategies. This work is based on the Linked Autonomous Interplanetary Satellite Orbit Navigation (LiAISON) method...
journal article 2022
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Turan, E. (author), Speretta, S. (author), Gill, E.K.A. (author)
This study provides a performance analysis of radiometric autonomous navigation for the lunar satellite network topologies formed by three spacecraft at various orbits. This work is built on the Linked Autonomous Interplanetary Satellite Orbit Navigation (LiAISON) method and uses mesh (distributed) and centralized (star) network topologies. The...
other 2022
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Rijlaarsdam, D.D.W. (author), Zwick, Martin (author), Kuiper, J.M. (author)
Pose estimation in robotics is often achieved using images from known and purposefully applied markers or fiducials taken by a monocular camera. This low-cost system architecture can provide accurate and precise pose estimation measurements. However, to prevent the restriction of robotic movement and occlusions of features, the fiducial markers...
journal article 2022
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Nguyen, T.L. (author), Blight, A. (author), Pickering, A. (author), Jackson-Mills, G. (author), Barber, A. R. (author), Boyle, J.H. (author), Richardson, R. (author), Dogar, M. (author), Cohen, N. (author)
Despite recent advances in robotic technology, sewer pipe inspection is still limited to conventional approaches that use cable-tethered robots. Such commercially available tethered robots lack autonomy, and their operation must be manually controlled via their tethered cables. Consequently, they can only travel to a certain distance in pipe,...
journal article 2022
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Duro, G. (author)
Banks constitute important areas for the river ecology since they provide a multitude of favourable conditions for flora and fauna. The hydromorphological diversity typical of these transitional zones between water and land, and the associated processes of erosion and accretion, make riverbanks vital for many aquatic and riparian plants and...
doctoral thesis 2021
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Kok, Emma (author)
In the Waal bed degradation occurs, which is mainly induced by a large number of river regulations measures done in the past. Rijkswaterstaat develops possible measures and new techniques to stop riverbed erosion and/or mitigate the negative effects. One of the possible new techniques to reduce riverbed erosion locally is groyne field...
master thesis 2020
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van Opstal, W. (author)
Navigational charts play a vital role in a ship's safety while navigating the seas, rivers or lakes. With most of the features and obstructions being out of sight -below sea-level - these charts are more critical than e.g. topographic maps. For routing but also positioning, depth information is a key aspect on these charts. This depth...
master thesis 2020
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Laurens, Florian (author)
The seasonal Chindwin river (Myanmar) forms the central artery for transportation in the region. However, the dynamic river behaviour, archaic boat equipment and limited monitoring, yearly results in large numbers of grounding ships, causing injuries and economic losses. A pilot project involving CoVadem technology was initiated in the beginning...
master thesis 2020
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book 2020
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Duro, G. (author), Crosato, A. (author), Kleinhans, Maarten G. (author), Uijttewaal, W.S.J. (author)
abstract 2020
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Duro, G. (author), Crosato, A. (author), Kleinhans, M. G. (author), Roelvink, D. (author), Uijttewaal, W.S.J. (author)
Vessel-induced waves affect the morphology and ecology of banks and shorelines around the world. In rivers used as waterways, ship passages contribute to the erosion of unprotected banks, but their short- and long-term impacts remain unclear. This work investigates the effects of navigation on bank erosion along a reach of the regulated Meuse...
journal article 2020
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Hiemstra, Koen (author)
The summer and autumn of 2018 showed the negative effects of both low-flow conditions and bed degradation over the last century on the river functions of the Dutch Rhine. These resulted in record-breaking water levels, extreme low navigation depth and subsequently nautical problems. As climate change will increase the inter-annual variability of...
master thesis 2019
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Alattas, Abdullah (author), van Oosterom, Peter (author), Zlatanova, Sisi (author), Diakité, Abdoulaye A. (author), Yan, Jinjin (author)
This paper presents the development of database for the conceptual model of LADM-IndoorGML. The aim of this work is to investigate all issues that related to generating the database and visualizing the content of the database. Based on the result of the transformation from conceptual model to the technical model that has been proposed by ...
conference paper 2018
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Alattas, A.F.M. (author), van Oosterom, P.J.M. (author), Zlatanova, S. (author), Diakite, A.A. (author), Yan, J. (author)
This paper presents the development of database for the conceptual model of LADM-IndoorGML. The aim of this work is to investigate all issues that related to generating the database and visualizing the content of the database. Based on the result of the transformation from conceptual model to the technical model that has been proposed by ...
conference paper 2018
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van Dijk, Tom (author)
This thesis presents a visual route following method that minimizes memory consumption to the point that even Micro Aerial Vehicles (MAV) equipped with only a simple microcontroller can traverse distances of a few hundred meters. Existing Simultaneous Localization and Mapping (SLAM) algorithms are too complex for use on a microcontroller....
master thesis 2017
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Cumbal Guerron, Ronald (author)
Socially-aware robot navigation strives to find efficient methods to autonomously navigate known environments while incorporating social metrics derived from human behavior. Several methods built for navigation on dynamic and uncertain environments have been adapted to resemble human navigation, but fail to appropriately reflect the social...
master thesis 2017
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Van Tiggelen, M. (author)
In this report, a least-squares approach is described for retrieving the 3D structure of the electron concentration in the Earth’s upper ionosphere and plasmasphere, using Global Navigation Satellite System (GNSS) data-sets from Low-Earth-Orbiting (LEO) satellites. Due to the lack of horizontal radio wave geometries, the method uses assumptions...
student report 2017
Searched for: subject%3A%22navigation%22
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