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Design and implementation of a mechanical control system for the Scanning Microwave Limb Sounder

Show simple item record Bowden, William 2012-08-08T17:27:04Z 2012-08-08T17:27:04Z 2011-05
dc.identifier.citation NASA Undergraduate Student Research Program, Pasadena, California, May , 2011 en_US
dc.identifier.clearanceno 11-1911
dc.description.abstract The Scanning Microwave Limb Sounder (SMLS) will use technological improvements in low noise mixers to provide precise data on the Earth’s atmospheric composition with high spatial resolution. This project focuses on the design and implementation of a real time control system needed for airborne engineering tests of the SMLS. The system must coordinate the actuation of optical components using four motors with encoder readback, while collecting synchronized telemetric data from a GPS receiver and 3-axis gyrometric system. A graphical user interface for testing the control system was also designed using Python. Although the system could have been implemented with a FPGA-based setup, we chose to use a low cost processor development kit manufactured by XMOS. The XMOS architecture allows parallel execution of multiple tasks on separate threads–making it ideal for this application and is easily programmed using XC (a subset of C). The necessary communication interfaces were implemented in software, including Ethernet, with significant cost and time reduction compared to an FPGA-based approach. For these reasons, the XMOS technology is an attractive, cost effective, alternative to FPGA-based technologies for this design and similar rapid prototyping projects. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2011. en_US
dc.subject Mars Science Laboratory Robotics en_US
dc.subject XMOS Control en_US
dc.subject microwave en_US
dc.subject WB-57 aircraft en_US
dc.title Design and implementation of a mechanical control system for the Scanning Microwave Limb Sounder en_US
dc.type Preprint en_US

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