Searched for: subject%3A%22small%255C-satellites%22
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Srikanth, Vikram (author)
Small satellite systems such as CubeSats and PocketQubes have strict requirements in terms of size, weight, and power available onboard. In light of these constraints, small satellite systems typically omit the inclusion of a ranging system due to its power and specialized hardware requirements. However, new research in satellite ranging...
master thesis 2023
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Maiorano, Luigi (author)
While image-based georeferencing systems are widely available, none are designed for edge computing on board small satellites in space. Recent advances in autonomous data processing allow points of interest (POIs) to be identified in the captured images, enabling prioritization of data and reducing required downlink bandwidths. Directly...
master thesis 2023
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Bhat, Ullas (author)
The use of small satellites, enabled by the standardization of the CubeSat specifications and miniaturization in electronics, has seen a rapid increase in the past decades. The low-cost and short development time of these satellites has made them an attractive option for both commercial and academic applications, making space exploration more...
master thesis 2023
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Li, Zhuoheng (author)
Programmers usually write test cases to test onboard software. However, this procedure is time-consuming and needs sufficient prior knowledge. As a result, small satellite developers may not be able to test the software thoroughly. <br/> <br/>A promising direction to solve this problem is reinforcement learning (RL) based testing. It searches...
master thesis 2022
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Di Mascio, S. (author)
The usage of terrestrial processors in space applications is not straightforward, as processors in space face unique challenges due to the effects of the space environment, like ionizing radiation causing Single Event Effects (SEEs). In the nineties, the European Space Agency chose the Scalable Processor ARChitecture (SPARC) Instruction Set...
doctoral thesis 2022
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Mingione, Fabio (author)
Reaction wheels are often the main contributor to microvibrations on satellites. These vibrations are a source of pointing errors and therefore need to be limited as much as possible. The miniaturization trend in the space industry and universities fostered the production of very small reaction wheels, suited to Cubesat and PocketQube scales. A...
master thesis 2022
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Turan, E. (author), Speretta, S. (author), Gill, E.K.A. (author)
In recent years, there is a growing interest in small satellites for deep space exploration. The current approach for planetary navigation is based on ground-based radiometric tracking. A new era of low-cost small satellites for space exploration will require autonomous deep space navigation. This will decrease the reliance on ground-based...
review 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)
Recent advances in space technology provide an opportunity for small satellites to be launched in cislunar space. However, tracking these small satellites still depends on ground-based operations. Autonomous navigation could be a possible solution considering the challenges presented by costly ground operations and limited onboard power...
journal article 2022
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He, Qian (author)
The aerospace industry's global market rise considerably in recent years. StarDetect, founded in Beijing in 2020, is a startup focusing on small satellite technology, developing functional payloads and providing customised services within the needs of space astronomy or earth geography observation. However, due to the relatively short and...
master thesis 2021
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Leverone, F.K. (author)
Exploring and utilising space to benefit humankind is undeniably a costly venture where the higher the mass of the satellite, the higher the cost to launch. However, the rewards of space-related achievements are indisputable. These achievements range from increasing our understanding of the universe using satellites, such as the Hubble Space...
doctoral thesis 2021
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van 't Hof, Jos (author)
Low downlink data rates limit the scientific and commercial return from small satellites. Now with constellations of small satellites becoming popular, the amount of data generated in low Earth orbit will be greater than ever. A novel data downlink architecture for small satellites is investigated that uses non-geostationary orbit (mega-...
master thesis 2021
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Eppenga, Kevin (author)
In previous research, the necessity of non-rigid body simulators was stated to be a requirement for long, slender bodies. However, it remains unclear for which vehicle design parameters non-rigid body effects become destabilising. A set of 2+N linearly independent equations of motions can be combined in a single matrix to determine the motion of...
master thesis 2021
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Carvajal Godínez, J. (author)
Since the launch of the first artificial satellite in October 1957, both satellite computers and their onboard software have changed significantly to integrate more functionalities and making mission operations more reliable. As a result, satellites have become more sophisticated and mission designers have moved functionality from the ground...
doctoral thesis 2021
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Nosseir, Ahmed E.S. (author), Cervone, A. (author), Pasini, Angelo (author)
Green propellants are currently considered as enabling technology that is revolutionizing the development of high-performance space propulsion, especially for small-sized spacecraft. Modern space missions, either in LEO or interplanetary, require relatively high-thrust and impulsive capabilities to provide better control on the spacecraft,...
journal article 2021
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Nosseir, Ahmed E.S. (author), Cervone, A. (author), Pasini, Angelo (author)
Current research trends have advanced the use of “green propellants” on a wide scale for spacecraft in various space missions; mainly for environmental sustainability and safety concerns. Small satellites, particularly micro and nanosatellites, evolved from passive planetary-orbiting to being able to perform active orbital operations that may...
journal article 2021
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Chambe, Marie (author)
This thesis work has been motivated by the growing interest in small-spacecraft small-body missions and more specifically inspired by a proposed mission to the largest Martian Trojan (5261) Eureka. This binary asteroid represents a promising target for a planetary mission, as a better understanding of its formation and evolution would provide...
master thesis 2020
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Nosseir, A.E.S. (author), Cervone, A. (author), Pasini, A (author)
Innovation in small-satellite modern space missions and applications require propulsion capabilities to enable active operations in orbit, such as formation flying, rendezvous operations, orbital altitude &amp; inclination changes, and orbital transfers,– generally, operations demanding high-thrust impulsive maneuvers. In addition, Green...
conference paper 2020
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Costa Amorim, Renato (author)
master thesis 2019
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Sundaramoorthy, P.P. (author)
The repertoire of words in the English language to refer to groups of animals is quite fascinating to say the least – a congregation of alligators, an army of ants, a troop of baboons, a pride of lions, a train of camels, a destruction of cats, an intrusion of cockroaches, a mob of emus, a plague of insects, a drift of pigs, and so on. The...
doctoral thesis 2018
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