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 7 of 7 for “"orbit analysis"”.
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The Deformable Mirror Demonstration Mission (DeMi) On-Orbit Analysis
… inclination, 423 km average altitude low-Earth orbit on July 13, 2020. The expected mission lifetime of DeMi was 6 months, however DeMi continues to be operational 9 months post deployment. During its lifetime, DeMi has completed several internal observations with the DM and both imagers using …
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Periodic orbit analysis of the Helmholtz equation in two-dimensional enclosures
This thesis examines how periodic orbits may be used in acoustics to understand solutions of the Helmholtz equation. A review of the links between ray and wave mechanics is given including WKBJ (Wentzel, Kramers, Brillouin and Jeffreys) and EBK (Einstein, Brillouin, Keller) methods. It is also …
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Investigating multiphoton phenomena using nonlinear dynamics
… These phase-space structures may be periodic orbits, invariant tori or their stable and unstable manifolds. One-electron systems and diatomic molecules are fundamental and important staging ground for new discoveries in nonlinear dynamics. In past years, increasing emphasis and effort has been …
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Evaluation of GLO: a Solar Occultation Instrument for Measuring Atmospheric Trace Species on CubeSat Missions
… vacuum channel comparison, gas cell spectral analysis, and gas cell to vacuum channel optical depth examination. Ground testing provided promising results with the low-cost prototype. It will be further evaluated through a balloon flight demonstration using a flight-ready GLO instrument. …
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A commercial architecture for satellite imagery
… evaluates constellation design factors such as orbit types, number of satellites, life-cycle and ground segment implementation. A coverage capability evaluation is provided to determine how a commercial system would be able to fulfill national imagery collection requirements. Eight different …
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Calibration of a SuperDARN Radar Antenna by means of a Satellite Beacon
… reports on the investigation to determine which orbits, ionospheric conditions and seasons of the year that will facilitate the reception of the high frequency (HF) beacon signal from the 1 U CubeSat ZACUBE 1 by the SuperDARN HF radar in Antarctica, and by the HF direction-finding (DF) systems in …
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Preliminary Design of a Titan-Orbiting Stellar Occultation Mission
… provide a conceptual mission design for a Titan-orbiting stellar occultation mission. Titan has a significant atmosphere much like Earth's. An improved understanding of Titan's atmosphere could provide valuable information about the evolution of Earth's climate. Titan's atmosphere is known to be …