- document
-
Silvagni, Pietro (author)The congestion of orbits around the Earth, particularly in Low Earth Orbit (LEO), necessitates the implementation of space-based Space Situational Awareness (SSA) missions. This increasing orbital congestion, driven by the proliferation of mega constellations, poses significant challenges to satellite operations and collision avoidance. In...master thesis 2024
- document
-
Failure anticipation scheme in distribution systems based on wave distortions and Montecarlo methodsBhandia, R. (author), de Jesus Chavez, Jose (author), Cvetkovic, M. (author), Garcia-Vite, Pedro M. (author), Popov, M. (author), Palensky, P. (author)Anticipating failures is vital for maintaining a reliable power supply. Advanced measurement devices in the grid generate vast data that contains valuable information on grid operations. Initial signatures of an incipient failure are often reflected in this data in the form of electrical waveform distortions. Conventional protection schemes are...review 2024
- document
-
Gill, E.K.A. (author), Akos, D. M. (author)This paper proposes a novel concept of using highly efficient Snapshot Global Navigation Satellite Systems (GNSS) receivers to provide precise position fixes of single or multiple satellites in Low-Earth Orbit (LEO) to improve upper atmospheric modeling and thus contribute to superior space situational awareness (SSA). While tracking of LEO...journal article 2024
- document
-
van Leeuwen, J.K. (author), Landman, H.M. (author), Groen, Eric L. (author), Mumaw, Randall J. (author), Stroosma, O. (author), van Paassen, M.M. (author), Mulder, Max (author)Previous research indicated a need to improve pilot training with regard to understanding of autopilot logic and behavior, especially in non-routine situations. Therefore, we tested the effect of problem-based exploratory training on pilots’ understanding of autopilot functions. Using a moving-base flight simulator, general aviation pilots (n...journal article 2024
- document
-
Xue, Chenbao (author), Cai, Han (author), Gehly, S. (author), Jah, Moriba (author), Zhang, Jingrui (author)To ensure the secure operation of space assets, it is crucial to employ ground and/or space-based surveillance sensors to observe a diverse array of anthropogenic space objects (ASOs). This enables the monitoring of abnormal behavior and facilitates the timely identification of potential risks, thereby enabling the provision of continuous and...review 2024
- document
-
Sinha, Ishita (author)Recent launches of satellite constellations in the Low Earth Orbit (LEO) region have increased the collision probability of existing debris objects with active satellites. Monitoring the trajectories of these debris objects is crucial for Space Situational Awareness (SSA) to prevent the creation of more debris due to unwanted collisions. Much...master thesis 2023
- document
-
Dönmez, Ahmet (author)Background<br/>This research explores the role of visualization tools in enhancing collaborative learning in virtual reality environments.<br/>Methodology<br/>An experiment was conducted, involving two groups of participants, each tasked with collaboratively solving a complex maze in a virtual reality environment. Both groups experienced two...bachelor thesis 2023
- document
-
Rook, Brian (author)Background<br/>Virtual Reality is an increasingly hot topic these days. As a user, you can play more and more high-quality games and strides are being made to use this medium for education and new kinds of workspaces. Previous research on Virtual Reality shows that it could improve teamwork by letting users share information easier. Users in...bachelor thesis 2023
- document
-
Gómez Mena, Teresa (author)Despite Virtual Reality being a relatively new field, it is steadily being introduced into numerous disciplines, such as education. Within these systems, particularly in collaborative environments, it is crucial to have a high Share Situational Awareness (SSA) in order to be aware of ones’ surroundings, encourage efficient decision making and...bachelor thesis 2023
- document
-
Song, R. (author), Papadimitriou, E. (author), Negenborn, R.R. (author), van Gelder, P.H.A.J.M. (author)The safety of maritime autonomous surface ships (MASS) in mixed waterborne transport system (MWTS) depends on effective situational awareness (SA) distribution among MASS, manned ships, and various stakeholders, such as Vessel Traffic Service (VTS), Remote Control Center (RCC) and Fairway Shipping Agency. This paper focuses on the research...conference paper 2023
- document
-
Speretta, S. (author), Uludag, M.S. (author), Menicucci, A. (author), Ferrario, Ivan (author)The last years saw the diffusion of nano, pico and femto satellite missions launched by multiple entities thanks to the launch cost reduction and the electronics miniaturization. Such missions usually present limited capabilities in terms of precise orbit determination and extremely small radar and optical cross-sections. Often these missions...conference paper 2023
- document
-
Callejon Cantero, M. (author), Pastor-Rodriguez, A. (author), Siemes, C. (author)The uncertainty on Thermospheric Mass Density (TMD), as derived from atmospheric models, can reach extremely high values. This effect is noteworthy in Low Earth Orbit (LEO), where atmospheric drag is the main perturbing force, as well as the most uncertain. LEO harbours almost 18,000 space objects at the end of 2021, around 60% of the total...conference paper 2023
- document
-
Langbroek, M. (author), Bassa, Cees (author), Molczan, Ted (author)Meaningful SSA work on earth-orbiting satellites can be done on a shoe-string budget, with modest, off the shelf equipment. This has been shown by an informal group of self-funded Independent Space Observers (“ISO’s”) organized around the Seesat-L mailing list. Literally from their backyards, they track some 200 “classified” objects – objects...conference paper 2023
- document
-
Haleem Medattil Ibrahim, M.I. (author), Sharma, Madhu (author), Subramaniam Rajkumar, Vetrivel (author)Monitoring, protection, and control processes are becoming more complex as distributed energy resources (DERs) penetrate distribution networks (DNs). This is due to the inherent nature of power DNs and the bi-directional flow of current from various sources to the loads. To improve the system’s situational awareness, the grid dynamics of the...journal article 2023
- document
-
Kola, I. (author), Jonker, C.M. (author), Riemsdijk, M. Birna van (author)Support agents that help users in their daily lives need to take into account not only the user’s characteristics, but also the social situation of the user. Existing work on including social context uses some type of situation cue as an input to information processing techniques in order to assess the expected behavior of the user. However,...journal article 2023
- document
-
Kaniewski, Pawel (author), Romanik, Janusz (author), Zubel, Krzysztof (author), Golan, Edward (author), R-Moreno, Maria D. (author), Skokowski, Paweł (author), Kelner, Jan M. (author), Malon, Krzysztof (author), Maślanka, Krzysztof (author), Guszczyński, Emil (author), Szklarski, Łukasz (author), Venkatesha Prasad, Ranga Rao (author)Situational awareness of armed forces acting in an urban environment is a key factor determining the success of military operations. In 2021 the European Defence Agency established the project on Wireless Sensor Networks for Urban Local Areas Surveillance. The main goal of the project is to assess how the situational awareness in an urban...conference paper 2023
- document
-
Cervone, A. (author), Topputo, F. (author), Speretta, S. (author), Menicucci, A. (author), Turan, E. (author), Di Lizia, P. (author), Massari, M. (author), Costa, E. (author), Bertels, E. (author)The Earth-Moon system is constantly bombarded by meteoroids of different size and impact speed. Observation of the impacts on the Moon can enable thorough characterization of the Lunar meteoroid flux, which is similar to that of the Earth. While Earth-based Lunar observations are restricted by weather, geometric and illumination conditions, a...journal article 2022
- document
-
Turner, C.J. (author), Rajan, R.T. (author)Large satellite constellations in Low Earth Orbit (LEO) have the potential to revolutionise worldwide internet access. The concomitant potential of these large constellations to impact space sustainability, however, has prompted concern from space actors as well as provoking concern in the ground-based astronomy community. Increasing the...conference paper 2022
- document
-
Song, R. (author), Papadimitriou, E. (author), Negenborn, R.R. (author), van Gelder, P.H.A.J.M. (author)Many projects related to maritime autonomous surface ships (MASS) have been proceeding to date, which promotes the commercialization of MASS. It is anticipated that there will be ships with different degrees of autonomy coexisting in a waterborne transport system (WTS) in the near future, forming a mixed waterborne transport system (MWTS). To...journal article 2022
- document
-
Lindhout, Paul (author), Reniers, G.L.L.M.E. (author)Risk control in many areas in society is based on known danger and avoidance of predicted accidents. Between accidents as predicted and accidents as they actually occur, there is a gap however. This gap hides a multitude of relevant safety information which might therefore not be considered in safety management systems, risk inventories and...journal article 2022