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This paper describes the design, implementation and testing of flight software for KySat-1 a picosatellite scheduled to launch in 2009. The paper also discusses the challenges of developing dependable software in an academic environment and the development of dependable software for commercial off the shelf (COTS) hardware in space applications. Techniques employed to design for reuse and examples...
KySat space express was a rapid turn around, suborbital access to space experiment launched in December 2007. The Space Express mission was designed to help test subsystems and processes being developed for future orbital KySat missions. A primary goal of the KySat consortium is to facilitate inexpensive and rapid access to space for small payloads. The space express mission was launched from the...
KySat1 is a 1 kilogram picoclass satellite being developed by college students across the state of Kentucky. To the best of our knowledge, the KySat effort is the first by a state to develop a satellite. The consortium assembled to fund and develop KySat includes public, private and educational partners throughout Kentucky. While the primary mission of KySat1 is educational outreach, the goals of...
This paper presents the run-time behavior of the Ardea system. Ardea (automatically reconfigurable distributed embedded architectures) is a framework for developing dependable embedded systems based on graphical software specification. Ardea supports many fault-tolerance techniques including graceful degradation, where alternate implementations of software modules can be defined to replace primary...
This paper describes a framework for developing dynamically reconfiguring distributed embedded systems supporting graceful degradation. Graceful degradation allows embedded systems to reconfigure in response to faults, allowing the systems to reduce their level of service instead of suffering system failures. The approach is based on a graphical software specification technique. Software module dependency...
SEARCH is a new method to seek evidence of extinct life and potential habitats. SEARCH combines innovative spectroscopic integrated sensing and processing with a hyperspace data-analysis algorithm. Using UV, visible, and near-IR spectroscopic integrated sensing and processing, SEARCH is designed to explore and quantitatively assess a local region on the surface of a planet or moon as a potential habitat...
BIG BLUE (baseline inflatable-wing glider, balloon-launched unmanned experiment) is a flight experiment envisioned, designed, built, and flown primarily by undergraduate students in the College of Engineering at the University of Kentucky. BIG BLUE was conceived as a demonstration of unique inflatable wing technologies with potential for application for Mars airplanes. On May 3, 2003, BIG BLUE achieved...
The BIG BLUE project at the University of Kentucky is a test bed UAV for Mars airplane technology. A major focus of the BIG BLUE effort has been the development of a low-cost and light-weight avionics, control, and communication system to manage the aircraft and correspond with ground stations. BIG BLUE I, launched in May 2003, achieved the first successful deployment of inflatable/rigidizable wings...
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