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Rozprawy doktorskie na temat „CubeSat”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 25 lipca 2025

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Erlank, Alexander Olaf. "Development of CubeStar : a CubeSat-compatible star tracker." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/85746.

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Thesis (MEng)-- Stellenbosch University, 2013.<br>ENGLISH ABSTRACT: The next generation of CubeSats will require accurate attitude knowledge throughout orbit for advanced science payloads and high gain antennas. A star tracker can provide the required performance, but star trackers have traditionally been too large, expensive and power hungry to be included on a CubeSat. The aim of this project is to develop and demonstrate a CubeSat compatible star tracker. Subsystems from two other CubeSat components, CubeSense and CubeComputer, were combined with a sensitive, commercial image sensor a

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Slettebo, Christian. "CubeSub : A CUBESAT BASED SUBMERSIBLE TESTBED FOR SPACE TECHNOLOGY." Thesis, KTH, Flygdynamik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-198521.

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This report is a Master’s Thesis in Aerospace Engineering, performed at the NASA Ames Research Center. It describes the development of the CubeSub, a submersible testbed compatible with the CubeSat form factor. The CubeSub will be used to mature technology and operational procedures to be used in space exploration, and possibly also as a tool for exploration of Earthly environments. CubeSats are carried as payloads, either containing technology to be tested or experiments and sensors for scientific use. The CubeSub is designed to be built up by modules, which can be assembled in different conf

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castello, brian. "CUBESAT MISSION PLANNING TOOLBOX." DigitalCommons@CalPoly, 2012. https://digitalcommons.calpoly.edu/theses/787.

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We are in an era of massive spending cuts in educational institutions, aerospace companies and governmental entities. Educational institutions are pursuing more training for less money, aerospace companies are reducing the cost of gaining ight heritage and the government is cutting budgets and their response times. Organizations are accomplishing this improved efficiency by moving away from large-scale satellite projects and developing pico and nanosatellites following the CubeSat specifications. One of the major challenges of developing satellites to the standard CubeSat mission requirements

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Tapparel, Pierre-André. "CDMS pour cubesat /." Sion, 2006. http://doc.rero.ch/search.py?recid=8376&ln=fr.

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Horký, Jan. "Řídicí jednotka pro CubeSat." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2017. http://www.nusl.cz/ntk/nusl-318165.

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Cílem práce je návrh univerzální řídicí jednotky pro CubeSat založené na obvodu FPGA. Taková jednotka doposud nebyla komerčně dostupná a navržená jednotka má tak dobrý potenciál zaplnit příslušné místo na trhu komponent pro CubeSat. Celá jednotka je navržena z komerčně dostupných komponent. Návrh jednotky je proveden tak, aby umožnil její funkci ve vesmírném prostředí. Stav konfigurace FPGA je pravidelně kontrolován a v případě zjištěné chyby dochází automaticky k rekonfiguraci FPGA a návratu jednotky do výchozího stavu. Jednotka obsahuje sadu senzorů, které monitorují její stav a v případě po

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Harris, Anthony D. "NPS CubeSat Launcher-lite sequence." Thesis, Monterey, Calif. : Naval Postgraduate School, 2009. http://edocs.nps.edu/npspubs/scholarly/theses/2009/Jun/09Jun%5FHarris.pdf.

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Thesis (M.S. in Space Systems Operations)--Naval Postgraduate School, June 2009.<br>Thesis Advisor(s): Newman, James H. "June 2009." Description based on title screen as viewed on July 10, 2009. Author(s) subject terms: NPSCuL, NPSCuL-Lite, P-POD, Sequencer, Launcher, Launch Vehicle, Microcontroller, Space, Satellite. Includes bibliographical references (p. 167-168). Also available in print.

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Hicks, Christina M. "NPS CubeSat Launcher program management." Thesis, Monterey, California : Naval Postgraduate School, 2009. http://edocs.nps.edu/npspubs/scholarly/theses/2009/Sep/09Sep%5FHicks.pdf.

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Thesis (M.S. in Space Systems Operations)--Naval Postgraduate School, September 2009.<br>Thesis Advisor(s): Newman, James H. "September 2009." Description based on title screen as viewed on November 10, 2009. Author(s) subject terms: NPSCuL, CubeSat, Launcher, P-POD, ABC, Aft Bulkhead Carrier, Centaur, ESPA, Secondary Payload, Program Management. Includes bibliographical references (p. 61-63). Also available in print.

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Zohar, Guy G. "AD-HOC REGIONAL COVERAGE CONSTELLATIONS OF CUBESATS USING SECONDARY LAUNCHES." DigitalCommons@CalPoly, 2013. https://digitalcommons.calpoly.edu/theses/927.

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As development of CubeSat based architectures 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 are severely limited in their options for deployment into appropriate constellation geometries. This thesis examines the current methods for deploying cubes and proposes new and efficient geometries using secondary launch opportunities. Due to the current de

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Frances, Matas Jordi. "Internal Wireless Bus for a CubeSat." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for elektronikk og telekommunikasjon, 2013. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-23088.

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NTNU (Norwegian University of Science and Technology) hosts NUTS (NTNU Test Satellite), which is mainly envisioned as an educational satellite where most tasks are performed by students while supported by university staff. As a peculiarity this CubeSat, unlike many others, is not based on the PC104 Standard. It is, instead, developed around a backplane approach, similar to a motherboard on a desktop computer. This novel approach left us without the possibility to use readily available commercial modules for CubeSats and also with the responsibility to design an ad-hoc solution for power distri

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Griffith, Robert C. "Mobile Cubesat Command and Control (MC3)." Thesis, Monterey, California. Naval Postgraduate School, 2011. http://hdl.handle.net/10945/5591.

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Approved for public release; distribution is unlimited.<br>The Mobile CubeSat Command and Control (MC3) program will become the ground segment of the Colony II satellite program. The MC3 ground station contains Commercial Off-the-Shelf (COTS) hardware with Government Off-the-Shelf (GOTS) software making it an affordable option for government agencies and universities participating in the Colony II program. Further, the MC3 program provides educational opportunities to students and training to space professionals in satellite communications. This thesis analyzes the MC3 program from the program

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Ziegler, Caleb Kevin. "A jam-resistant CubeSat communications architecture." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/112484.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 2017.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 133-140).<br>This thesis proposes a communications system that utilizes the benefits of CubeSats to provide jam-resistant communications. The growth of CubeSats within educational communities has prompted their use in industry; both industry and academia have contributed towards making CubeSats much more capable. CubeSats can now perform many advanced missions, from technology demonstrations to Earth observ

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Cordeiro, Timothy Joseph. "Dynamic instabilities imparted by CubeSat propulsion." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/105612.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 2016.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 120-123).<br>As the role of CubeSats evolves to include more challenging and complex missions in addition to technology demonstrations, the demand for agility have increased. As the technology improves and gains flight heritage, CubeSats are being deployed to accomplish more difficult missions including, but not limited to, large constellations and missions beyond Low Earth Orbit (LEO). To perform missions

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Ahmed, Ozomata D. "Hybrid propulsion system for CubeSat applications." Thesis, University of Surrey, 2016. http://epubs.surrey.ac.uk/812899/.

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The CubeSats platform has become a common basis for the development and flight of very small, low cost spacecraft-particularly amongst University groups. The smallest CubeSats are just 1 litre in volume-comprising a 10.

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Anderson, Jason Lionel. "Autonomous Satellite Operations For CubeSat Satellites." DigitalCommons@CalPoly, 2010. https://digitalcommons.calpoly.edu/theses/256.

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In the world of educational satellites, student teams manually conduct operations daily, sending commands and collecting downlinked data. Educational satellites typically travel in a Low Earth Orbit allowing line of sight communication for approximately thirty minutes each day. This is manageable for student teams as the required manpower is minimal. The international Global Educational Network for Satellite Operations (GENSO), however, promises satellite contact upwards of sixteen hours per day by connecting earth stations all over the world through the Internet. This dramatic increase in

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Smith, Liam Colin. "Interplanetary Ridesharing: Exploring Potential CubeSat Trajectories." DigitalCommons@CalPoly, 2015. https://digitalcommons.calpoly.edu/theses/1487.

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Ever since the revolutionary CubeSat form factor took hold in the Aerospace industry, there has been a desire to send them further and further into space. This thesis introduces an optimization approach to deployment that explores new possibilities of interplanetary CubeSats. In this approach there are three categories of objective functions that are defined by the type of trajectory of a “primary” spacecraft, which carries the CubeSat deployer. These categories are flyby, orbiter, and lander. For each category the objective function starts with four design variables. These are the ΔV of the d

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Smalarz, Bradley Ryan. "CubeSat Constellation Analysis for Data Relaying." DigitalCommons@CalPoly, 2011. https://digitalcommons.calpoly.edu/theses/650.

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Current CubeSat communication technology limits the amount of time, and number of accesses with ground stations. It has been proposed to use a constellation of CubeSats to improve relay performance and increase the number of accesses between a CubeSat and ground stations. By using the spatial and temporal analysis features of STK, coupled with the STK/Matlab interface a robust tool was created to analyze the performance of CubeSat constellations based on a store-and-forward communications model which is not currently supported by the STK Engine. Utilizing the Connect messaging format throug

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White, Michael T. "CubeSat Constellation Design for Intersatellite Linking." Scholar Commons, 2019. https://scholarcommons.usf.edu/etd/7987.

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This thesis investigates the concept of controlling a CubeSat constellation in low-Earth orbit. Low-Earth orbits are considered because the torque used for satellite control is supplied with magnetorquers, and the closer the satellite is to Earth’s magnetic field the more control gain can be supplied. Also, this is the expected orbit altitude of future CubeSat constellations to enable communications. Controlling a CubeSat relies on attitude determination. This means being able to estimate its attitude relative to a given reference frame. To determine the attitude, we propose to use a star trac

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Le, Gaux Clyde R. III. "STARE CubeSat Communications Testing, Simulation and Analysis." Thesis, Monterey, California. Naval Postgraduate School, 2012. http://hdl.handle.net/10945/17397.

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Approved for public release; distribution is unlimited<br>The Space-based Telescope for the Actionable Refinement of Ephemeris (STARE) CubeSat will play an important role in contributing to this nations space situational awareness (SSA), perhaps one day becoming an integral part of the space surveillance network (SSN) to track orbital debris and satellites, both active and inactive. STARE is a pathfinder mission that is expected to show that CubeSat assets can improve the accuracy of space debris ephemeris data and help national assets avoid conjunction. However, STARE cannot do its job if it

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Develle, Michael James II. "Optimal attitude control management for a cubesat." Master's thesis, University of Central Florida, 2011. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4752.

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CubeSats have become popular among universities, research organizations, and government agencies due to their low cost, small size, and light weight. Their standardized configurations further reduce the development time and ensure more frequent launch opportunities. Early cubesat missions focused on hardware validation and simple communication missions, with little requirement for pointing accuracy. Most of these used magnetic torque rods or coils for attitude stabilization. However, the intrinsic problems associated with magnetic torque systems, such as the lack of three-axis control and low

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O'Brien, Tolulope E. "Space situational awareness CubeSat concept of operations." Monterey, California. Naval Postgraduate School, 2011. http://hdl.handle.net/10945/10664.

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The concept of space situational awareness (SSA) is important to preserve manned and unmanned space operations. Traditionally, ground based radar, electro-optical sensors and very limited space-based assets have been used as part of the space surveillance network (SSN) to track orbital debris, inactive and active satellites alike. With the current SSN assets aging and the need for SSA growing, it is important to explore new ways to ensure proper SSA is maintained to preserve space operations. The Space-based Telescope for the Actionable Refinement of Ephemeris (STARE) project was initiated to

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Chandrashekar, Shreyas. "Thermal Analysis and Control of MIST CubeSat." Thesis, KTH, Skolan för elektro- och systemteknik (EES), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-200929.

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The thermal analysis and control provides the necessary means to control the temperatureof the satellite during the harsh conditions in space. MIST CubeSat presents a challengingtask to design such a system with its various payloads and subsystems on board. Thisthesis report aims to describe the modelling and design of the thermal control systemdeveloped for MIST CubeSat in detail.Each of these payloads and subsystems have different thermal requirements that has tobe met in order to maintain thermal equilibrium. Hence in this project, all the units aregiven equal importance for the analysis to

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Nzeugaing, Gutembert Nganpet. "Image compression system for a 3u cubesat." Thesis, Cape Peninsula University of Technology, 2013. http://hdl.handle.net/20.500.11838/1085.

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Thesis submitted in partial fulfilment of the requirements for the degree of Master of Technology: Electrical Engineering in the Faculty of Engineering at the Cape Peninsula University of Technology 2013<br>Earth observation satellites utilise sensors or cameras to capture data or images that are relayed to the ground station(s). The ZACUBE-02 CubeSat currently in development at the French South African Institute of Technology (F’SATI) contains a high resolution 5 megapixel on-board camera. The purpose of the camera is to capture images of Earth and relay them to the ground station once commun

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Bylund, Oscar. "Attitude Determination and Control of a Cubesat." Thesis, KTH, Rymdteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-231376.

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This report describes the feasibility of attitude determination and control of the student satellite MIST. It investigates the stability and controllability of the satellite system, it covers attitude determination based on magnetometer and sun sensor measurements available and finally compares two controllers and the resulting pointing accuracy of the satellite. The study shows that the pointing requirements can be met under nominal circumstances.<br>I denna rapport utreds hur noggrannt en studentsatellits attityd kan uppskattas och kontrolleras. Sensorerna och aktuatorerna består av en magne

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Leffke, Zachary James. "Distributed Ground Station Network for CubeSat Communications." Thesis, Virginia Tech, 2014. http://hdl.handle.net/10919/25151.

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In the last decade the world has seen a steadily increasing number of Cube Satellites deployed to Low Earth Orbit. Traditionally, these cubesats rely on Amateur Radio communications technology that are proven to work from space. However, as data volumes increase, the existing Amateur Radio protocols, combined with the restrictions of use for the Amateur Radio Spectrum, as well as the trend to build one control station per cubesat, result in a bottle neck effect whereby existing communications methods are no longer sufficient to support the increasing data volumes of the spacecraft. This Mast

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Crook, Matthew R. "NPS CubeSat launcher design, process and requirements." Thesis, Monterey, Calif. : Naval Postgraduate School, 2009. http://handle.dtic.mil/100.2/ADA501503.

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Thesis (M.S. in Space Systems Operations)--Naval Postgraduate School, June 2009.<br>Thesis Advisor(s): Newman, James H. "June 2009." Description based on title screen as viewed on July 13, 2009. DTIC Identifiers: NPSCUL (NPS CUBESAT Launcher), ESPA (EELV Secondary Payload Adapter), P-POD (Poly Picosatellite Orbital Deployer), nanosatellite standards, CRADA (Cooperative Research and Development Agreement), EELV (Evolved Expendable Launch Vehicle), FDM (Fused Deposition Modeling), geosynchronous orbits, low earth orbits, rapid prototyping. Author(s) subject terms: CubeSat, NPSCuL, ESPA, EELV, Sa

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Karagiannakis, Philippos. "Communications for CubeSat networks and fractionalised spacecraft." Thesis, University of Strathclyde, 2017. http://digitool.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=28413.

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The use of low-cost CubeSats in the context of satellite formation flying appears favourable due to their small size, relatively low launch cost, short development cycle and utilisation of commercial off the shelf components. However, the task of managing complex formations using a large number of satellites in Earth orbit is not a trivial one, and is further exacerbated by low-power and processing constraints in CubeSats. With this in mind, a Field Programmable Gate Array (FPGA) based system has been developed to provide next generation on-board computing capability. The features and function

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Crews, Angela B. (Angela Beth). "Calibration and validation for CubeSat Microwave Radiometers." Thesis, Massachusetts Institute of Technology, 2019. https://hdl.handle.net/1721.1/122368.

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This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Thesis: Ph. D., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 2019<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 187-194).<br>Miniaturized microwave radiometers deployed on nanosatellites in Low Earth Orbit (LEO) are now demonstrating the ability to provide science-quality weather measurements. For instance, the Micro-sized Microwave Atmospheric Satelli

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Burt, Robert. "Distributed Electrical Power System in Cubesat Applications." DigitalCommons@USU, 2011. https://digitalcommons.usu.edu/etd/1052.

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The single bus voltage distributed architecture is the mainstay architecture for small satellite spacecraft. Even large satellites follow this architecture. While they may have more than one voltage that is distributed, such as a high voltage bus and a low voltage bus, within a subsystem, there is usually one bus voltage. Each subsystem component is responsible for further regulation or point-of-load regulation. The Nano-satellite class, and more particularly the cubesat, have broken away from this norm and overwhelmingly implement a centralized architecture. With the advances of small, h

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Manyak, Greg D. "Fault Tolerant and Flexible CubeSat Software Architecture." DigitalCommons@CalPoly, 2011. https://digitalcommons.calpoly.edu/theses/550.

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The CubeSat pico-satellite is gaining popularity in both the educational and aerospace industries. Due to a lack of experience and constrained hardware capabilities, most of the university missions have been educational in nature. Cal Poly's project, PolySat, has gained significant experience from the launch of five CubeSats and has designed an entirely new hardware platform based on the knowledge gained from these missions. This hardware is a significant upgrade from what the previous missions used and has greatly increased the capabilities of the software, including supporting the use of t

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MOZZILLO, RAFFAELE. "Technologies and methodologies for CubeSat performances improvement." Doctoral thesis, Politecnico di Torino, 2016. http://hdl.handle.net/11583/2643293.

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The importance of small satellites, and in particular of nano-satellites (e.g. CubeSats) has increased during last years thanks to major improvements in the field of electrical and mechanical miniaturisation. Another important factor is represented by the interest of national and international space agencies, which has led to the creation of many scientific small satellites programmes, beyond several educational ones. “Small satellites” term shall not be considered referring only to mass, but it describes also a new approach to building, operating, and managing risk for satellite systems; in f

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Nguyen, Manh Thao. "Conception d'antenne reconfigurable et intégrée pour CubeSat." Electronic Thesis or Diss., Université Côte d'Azur, 2025. http://www.theses.fr/2025COAZ4007.

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La croissance rapide des CubeSats a considérablement transformé l'industrie satellitaire, permettant des missions économiques et polyvalentes. Les antennes sont des composants essentiels des CubeSats, particulièrement pour les applications de télémétrie, suivi et commande (Telemetry, Tracking, and Control - TTC), garantissant une communication fiable avec les stations au sol. Traditionnellement, les antennes CubeSat impliquent souvent des mécanismes déployables risqués, augmentant la complexité et le potentiel de défaillances mécaniques. Cette thèse aborde ces défis en développant des antennes

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Lascialanda, Laura. "Progetto preliminare ed analisi strutturale di un Cubesat." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amslaurea.unibo.it/9669/.

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Lo scopo di questa tesi è progettare e analizzare la struttura più efficiente ed adeguata di un CubeSat 1U, realizzando un modello al calcolatore che sia il più possibile aderente al modello reale. Ciò viene fatto utilizzando un software dedicato alle simulazioni avanzate, Ansys Workbench con il quale è possibile svolgere analisi modali sulla struttura realizzata. Per validare il modello numerico occorre confrontare i risultati ottenuti al calcolatore con quelli conseguiti sperimentalmente nell'ambito della tesi del mio collega Riccardo Fabbri; una volta fatto ciò si manipola il modello numer

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Rossi, Matteo. "Studio ed analisi termica di un Cubesat 1U." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2018.

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Vengono mostrati i fattori principali che influenzano la variazione di temperatura in ambiente spaziale. Sono studiati ed analizzati, tramite il software per l’analisi termica di Ansys, i flussi termici semplificati per la missione LEO (Low Earth Orbit) del progetto Cubesat. In particolare è esposto l’utilizzo di un software commerciale Ansys e di un software di calcolo Matlab. Si è partiti dall’analisi di un modello semplificato ad un unico nodo di un nanosatellite di tipo Cubesat, sviluppando un programma adeguato all’analisi della variazione di temperatura in Matlab. In seguito, si è rip

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Bath, Avtar Singh. "Progettazione e analisi di strutture per Cubesat 2U." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/18160/.

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Attività di progettazione, svolta su Solidworks, di due strutture per Cubesat 2U, tenendo conto di normative e restrizioni imposte da standard internazionali. Una volta finalizzate le due strutture per Cubesat, queste sono state analizzate su Ansys: sono state svolte analisi statiche, analisi a bassa frequenza e analisi random. Successivamente sono stati trovati i margini di sicurezza per capire l'affidabilità delle strutture stesse. Tenedo conto di tali margini e di altre caratteristiche delle rispettive strutture, è stato fatto un confronto tra le due e sono stati riportati vantaggi e svant

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Dalle, Fabbriche Simone. "Progetto preliminare di un Cubesat per osservazione terrestre." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/19093/.

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L’obiettivo del seguente elaborato di tesi è la progettazione preliminare di un nano satellite per osservazione terrestre. A seguito di una definizione di payload e orbita sono stati svolti i dimensionamenti di massima di alcuni dei principali sottosistemi presenti in un CubeSat. In particolare sono stati impostati il power budget e il link budget, per definire indicativamente i requisiti dei vari componenti. In conclusione è stato prodotto un disegno CAD del satellite per valutarne le dimensioni disponibili al payload e il centro di massa.

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Matteoni, Paolo. "Progetto del sistema di potenza per applicazioni CubeSat." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/19042/.

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L’elaborato di tesi qui sviluppato presenta come oggetto il dimensionamento e la progettazione di un sottosistema di potenza per una piattaforma CubeSat, il cui sviluppo è stato recentemente avviato dall’Università di Bologna. Il mio studio ha origine nel Laboratorio di Microsatelliti e Microsistemi Spaziali, per essere poi continuato e concluso nel Laboratorio di Satelliti presso New Production Concept S.r.l. – Space Mind a Imola. Il sottosistema di potenza, soprattutto nelle piattaforme CubeSat, è delicato in quanto non solo produce e distribuisce la corrente elettrica a tutti i carichi p

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De, Luca Stefano. "Studio orbitale di missione CubeSat con applicativo GMAT." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2020.

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La missione per cui questo elaborato è stato redatto è relativa allo studio orbitale di un satellite CubeSat con lo scopo di garantire una navigazione nello spazio autonoma con l’aiuto dei satelliti GPS. E' stata studiata, in particolare, la natura di un nanosatellite, sempre più utilizzato ai giorni nostri per missioni di lancio nello spazio. Si è fatto uso di software quali GMAT e Matlab che hanno permesso di studiare i dati dei sottosistemi di telecomunicazione e di controllo termico utili ai fini della missione.

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De, Simei Mattia. "Analisi meccanica di una piattaforma nanosatellitare Cubesat 12U." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/20776/.

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Il contenuto della tesi è un'analisi meccanica di una piattaforma nanosatellitare Cubesat 12U; si sono analizzati i requisiti dimensionali e di massa di un Cubesat, inclusi i vari progetti e modelli relativi al 12U; si sono studiati i carichi nella fase di lancio e diversi lanciatori. La parte finale è stata dedicata all'analisi FEM su Catia del modello Cubesat 12U semplificato, partendo dalla mesh, dalla connessione delle parti, dall'introduzione di masse per simulare i payload e i vincoli sulla struttura. L'ambiente di analisi dedicata ai carichi statici è l'analisi statica mentre l'analisi

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Lee, Zachary Thomas. "CubeSat constellation implementation and management using differential drag." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/112471.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 2017.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 107-117).<br>Space missions often require the use of several satellites working in coordination with each other. Industry examples include Planet, which is working to develop a constellation of over 100 Cube Satellites (CubeSats) to obtain global imagery data daily, and Astro Digital, which seeks to implement a constellation of multispectral imaging satellites to image the entire Earth every three to four d

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Van, de Loo Mark David. "CubeSat attitude control using micronewton electrospray thruster actuation." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/90806.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 2014.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 215-217).<br>Micronewton electrospray thrusters are a promising new actuator for CubeSat attitude control. Electrospray thrusters have advantages over current state of the art CubeSat attitude actuators in mass, volume, and their ability to produce translational acceleration in addition to control moments. An attitude determination and control system was designed for a 1U CubeSat assuming commercial-off-the

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Peters, Eric David. "Dynamic instabilities imparted by CubeSat deployable solar panels." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/93800.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 2014.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 85-87).<br>In this work, multibody dynamics simulation was used to investigate the effects of solar panel deployment on CubeSat attitude dynamics. Nominal and partial/asymmetric deployments were simulated for four different solar panel assemblies. Trend lines were obtained for the evolution of the angular velocities and accelerations of the CubeSat about its center of mass for the duration of the deployment

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Bakam, Nguenouho Odette Sandrine. "Ceramic coaxial resonator filter in a CubeSat system." Thesis, Cape Peninsula University of Technology, 2017. http://hdl.handle.net/20.500.11838/2639.

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Thesis (MTech (Electrical Engineering))--Cape Peninsula University of Technology, 2017.<br>RF and microwave filters can be implemented using ceramic coaxial resonators. This technology has been widely employed in nanosatellite communications systems recently, owing to its large quality factor (Q), permitting them to have low loss and narrow bandwidth. Features such as high selectivity, high power handling, excellent rejection, and low passband insertion loss are just a few of the key performance areas offered by ceramic coaxial resonators. This feature makes them suitable for use in bandpass f

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Singh, Serbinder. "A Data-Driven Approach to Cubesat Health Monitoring." DigitalCommons@CalPoly, 2017. https://digitalcommons.calpoly.edu/theses/1782.

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Spacecraft health monitoring is essential to ensure that a spacecraft is operating properly and has no anomalies that could jeopardize its mission. Many of the current methods of monitoring system health are difficult to use as the complexity of spacecraft increase, and are in many cases impractical on CubeSat satellites which have strict size and resource limitations. To overcome these problems, new data-driven techniques such as Inductive Monitoring System (IMS), use data mining and machine learning on archived system telemetry to create models that characterize nominal system behavior. The

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Williams, Jon A. "Enabling Validation of a CubeSat Compatible Wind Sensor." Thesis, Virginia Tech, 2017. http://hdl.handle.net/10919/78711.

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The Ram Energy Distribution Detector (REDD) is a new CubeSat-compatible space science instrument that measures neutral wind characteristics in the upper atmosphere. Neutral gas interactions with plasma in the ionosphere/thermosphere are responsible for spacecraft drag, radio frequency disturbances such as scintillation, and other geophysical phenomena. REDD is designed to collect in-situ measurements within this region of the atmosphere where in-flight data collection using spacecraft has proven particularly challenging due to both the atmospheric density and the dominating presence of highly

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Walker, Alex R. "Fuzzy Attitude Control of a Magnetically Actuated CubeSat." University of Cincinnati / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1384333499.

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Zhou, Jiewei. "Attitude Determination and Control of the CubeSat MIST." Thesis, KTH, Farkost och flyg, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-203284.

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The ADCS concept in MIST reects the limitations of the CubeSat in terms of space, power and onboard computer computational capability. The control is constrained to the use of only magnetic torquers and the determination to magnetometers and Sun sensors in spite of the the under-actuation and underdetermination during eclipses. Usually small satellites with a similar ADCS and demanding requirements fail, therefore MIST would be a design reference for this kind of concept in the case it succeeds. The objectives of this thesis work are the feasibility assessment of the concept to meet the nomina

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Cheney, Liam Jon. "Development of Safety Standards for CubeSat Propulsion Systems." DigitalCommons@CalPoly, 2014. https://digitalcommons.calpoly.edu/theses/1180.

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The CubeSat community has begun to develop and implement propulsion systems. This movement represents a new capability which may satisfy mission needs such as orbital and constellation maintenance, formation flight, de-orbit, and even interplanetary travel. With the freedom and capability granted by propulsion systems, CubeSat providers must accept new responsibilities in proportion to the potential hazards that propulsion systems may present. The Cal Poly CubeSat program publishes and maintains the CubeSat Design Specification (CDS). They wish to help the CubeSat community to safety and respo

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Furger, Steve M. "Analysis and Mitigation of the CubeSat Dynamic Environment." DigitalCommons@CalPoly, 2013. https://digitalcommons.calpoly.edu/theses/1042.

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A vibration model was developed for CubeSats inside the Poly-Picosatellite Orbital Deployer (P-POD). CubeSats are fixed in the Z axis of deployers, and therefore resonate with deployer peaks. CubeSats generally start fixed in the X and Y axes, and then settle into an isolated position. CubeSats do not resonate with deployers after settling into an isolated position. Experimental data shows that the P-POD amplifies vibration loads when CubeSats are fixed in the deployer, and vibration loads are reduced when the CubeSats settle into an isolated position. A concept for a future deployer was propo

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Haddock, Michelle. "Inductive Monitoring Systems: A CubeSat Ground-Based Prototype." DigitalCommons@CalPoly, 2015. https://digitalcommons.calpoly.edu/theses/1515.

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Inductive Monitoring Systems (IMS) are the newest form of health monitoring available to the aerospace industry. IMS is a program that builds a knowledge base of nominal state vectors from a nominal data set using data mining techniques. The nominal knowledge base is then used to monitor new data vectors for off-nominal conditions within the system. IMS is designed to replace the current health monitoring process, referred to as model-based reasoning, by automating the process of classifying healthy states and anomaly detection. An IMS prototype was designed and implemented in MATLAB. A verifi

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Fitzsimmons, Sean. "Reliable Software Updates for On-orbit CubeSat Satellites." DigitalCommons@CalPoly, 2012. https://digitalcommons.calpoly.edu/theses/804.

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CubeSat satellites have redefined the standard solution for conducting missions in space due to their unique form factor and cost. The harsh environment of space necessitates examining features that improve satellite robustness and ultimately extend lifetime, which is typical and vital for mission success. The CubeSat development team at Cal Poly, PolySat, has recently redefined its standard avionics platform to support more complex mission capabilities with this robustness in mind. A significant addition was the integration of the Linux operating system, which provides the flexibility to deve

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