Global ETD Search
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 9 of 9 for “"Amateur Radio"”.
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Storm Spotting and Amateur Radio: a Field Guide for Volunteer Storm Spotters
… severe weather threatens. For almost 100 years Amateur Radio operators have played a critical part in severe weather preparedness and response. Amateur Radio operators not only bring a willingness to serve, but communications skills that provide an added benefit to any storm spotter program. The …
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Distributed Ground Station Network for CubeSat Communications
… 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 …
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An analysis of low-earth-orbit-satellite communication systems
… architectures is elaborated upon for the use of amateur radio communications. Doppler shift and its effect on satellites in low-earth-orbit is examined. Efficiency and throughput of the Amateur X.25 Protocol will be explored. The last chapter entails the analysis of the PACSAT experiment.
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The Development and Optimization of a Teleoperated Four-Wheel Drive/ Four-Wheel Steer Vehicle
… a command station and the vehicle via two amateur radio transceivers.An empirical approach for determining the optimal handling characteristics for a four wheel steering vehicle is described. A two dimensional optimization is performed using Powell's method. The two parameters in question …
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Design and analysis of ground stations for Pacsat applications
… cost. Commercially available systems for related amateur radio uses were integrated for these prototypes. The prototypes illustrated areas for further development before widespread use of PACSATs can be realized. To better understand some of the issues for PACSATs, two analyses were developed. The …
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Architecting SatCom-Enabled Early Warning Systems in Indonesia
… of the analysis, satellite L-band, S-band, amateur radio, and newer technologies such as satellite LPWAN and GSM can provide significant benefits in terms of performance and cost. Additionally, the benefit of combining technical development and community engagement are highlighted for a …
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Ionospheric Disturbances: Midlatitude Pi2 Magnetospheric ULF Pulsations and Medium Scale Traveling Ionospheric Disturbances
… systems, especially those which utilize radio frequency energy. By studying ionospheric disturbances, it is possible to gain a deeper understanding of not only the ionosphere itself, but also the natural and technological systems it is coupled to. This dissertation research utilizes high …
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A Distributed Software Framework for the Virginia Tech Ground Station
… between the ground station and common amateur radio CubeSats and SmallSats. In order to handle distributed tasks and process at a ground station with multiple servers and controllers, a specialized actor framework was written in Python for ease of use. Actors have the ability to send …
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Technological Immersion Learning: A Grounded Theory
… and concerns. Twelve unstructured interviews of amateur radio enthusiasts from the eastern United States provided the initial / primary data for this study. Experimenting and self-teaching in technological activities was highlighted as the main concern of the participants. The basic social …