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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 121 for “"CubeSats"”.
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An electrical power system for CubeSats
The advent of CubeSats has provided a platform for relatively low-budget programmes to realise space missions. In South Africa, Stellenbosch University and the Cape Peninsula University of Technology have impressive space programmes and have been involved in numerous successful satellite launches. …
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Resource-constrained avionics design for CubeSats
We present an optimization approach to CubeSat avionics design which considers the consumption of some resources (electrical power, volume) and production of others (processing power, volatile memory, non-volatile memory, and radiation tolerance) in a quantitative optimization analysis. We present …
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Nonlinear control strategies for quadrotors and CubeSats
… a Systems Engineering study for formation flying CubeSats has been undertaken. Two different kinds of formation flying missions using 4-6 CubeSats have been developed, one with an actively controlled formation and the other with a passively controlled formation. Different controllers have been …
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Magnetic Cleanliness, Sensing, and Calibration for CubeSats
… The AERO-VISTA mission comprises a pair of 6U CubeSats which will determine the propagation modes and directions of high frequency (400 kHz–5 MHz) waves in Earth’s ionosphere in the presence of Earth’s aurorae. This mission science requires accurate in-situ magnetic sensing of auroral currents …
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Hybrid Chemical-Electric Propulsion Systems for CubeSats
As CubeSats have proved their benefits for missions ranging from Earth observation, communication, navigation, or science, miniaturized propulsion systems have been actively developed and demonstrated in-flight to support these applications. Propulsion systems are primarily divided into two main …
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FRAMEWORK FOR CUBESATS MISSION MANAGEMENT, DESIGN, AND OPTIMIZATION
… management of CubeSat missions. In recent years, CubeSats have moved from their original intent of educational nanosatellites to platforms that can deliver high scientific and commercial value. This mission performance improvement comes with a rise in their complexity. Yet, most CubeSat teams …
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NEIGHBOR: A reliable de-orbit device for CubeSats
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-12-04 without embargo terms
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Characterization of redundant UHF communication systems for CubeSats
… as well as how it might be implemented on other CubeSats.
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Development of a High Performance Micropropulsion System for CubeSats
… A specific type of Picosatellite known as CubeSats were introduced in 1999 and since then have increased in popularity so that there are now over 80 CubeSat programs around the world. CubeSats are defined as cubic units 10cm on each side and no more than 1kg in mass. CubeSats are required …
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From CubeSats to constellations : systems design and performance analysis
… increasing availability of commercial parts for CubeSats make them ideal for use in constellations. In this work, we provide an in-depth analysis of how to evolve from a single Earth-observing CubeSat to an effective CubeSat constellation. We first consider pointing capability provided by three …
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Contributions to the advance of the integration density of CubeSats
… to increase the integration density of CubeSats. Observations of the CubeSat market and missions are recorded in order to derive design criteria for high performance single unit CubeSats. A promising approach to increased integration density is relocation of the components of multiple …
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Optical Tracking and Spectral Characterization of Cubesats for Operational Missions
… missions- down to satellites as small as CubeSats. Optical observation of CubeSats could provide independent monitoring of spin rate, deployable status, identification of individual CubeSats in a swarm, or possibly attitude information.</p> <p>This thesis first introduces the reader to a …
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Ad-Hoc Regional Coverage Constellations of Cubesats Using Secondary Launches
… increase, methods of deploying constellations of CubeSats are required to increase functionality of future systems. Given their low cost and quickly increasing launch opportunities, large numbers of CubeSats can easily be developed and deployed in orbit. However, as secondary payloads, CubeSats …
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Deep-Space Exploration Enabled by CubeSats with Staged Electrospray Propulsion
… their beginnings as an educational experiment, CubeSats have grown to a popular technology development platform and a capable tool for scientific missions. Deep-space CubeSats have been limited to rideshare launches thus far, acting as companions to enhance large missions or using propulsion to …
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Reference Architecture for an Integrated Ground and Space Software for CubeSats
L'abstract è presente nell'allegato / the abstract is in the attachment
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Pointing system performance analysis for optical inter-satellite communication on CubeSats
… links (ISL) for resource-constrained CubeSats, which have emerged as a standard form of a small satellite since 1999. However, lasercom requires much more accurate pointing because of its narrower beam width. Accurate pointing is not trivial for most CubeSat platforms due to their …
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Development of next generation multifunctional composite structures for CubeSats, pico- and nanosatellites
L'abstract è presente nell'allegato / the abstract is in the attachment
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Additively Manufactured, Multi-Langmuir Probe Plasma Sensing Device for Use on CubeSats
… its properties. LPs are an ideal choice for CubeSats due to their simplicity, versatility, and minimal maintenance requirements. This thesis focuses on the development and characterization of a novel LP sensor array that employs three types of LP arrangements (single, dual, and triple) to …
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Design and analysis of a stage-based electrospray propulsion system for CubeSats
The standardization of small spacecraft through CubeSats has allowed for more affordable space exploration. This progress in affordability has been limited to Earth orbit due in part to the lack of high [delta]V propulsion systems that are compatible with the small form factor. The ion Electrospray …
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Improving attitude determination and control of resource-constrained CubeSats using unscented Kalman filtering
CubeSats are a specific subset of nanosatellites, and their common form factor and canisterized deployers have made it possible to undertake higher risk, lower cost missions that can supplement the current generation of large, monolithic, expensive satellites. Our objective in this thesis is to …
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