NDLI: Design and implementation of the GPS subsystem for the Radio Aurora eXplorer

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Design and implementation of the GPS subsystem for the Radio Aurora eXplorer

Content Provider	Semantic Scholar
Author	Spangelo, Sara C. Bennett, M. Meinzer, Daniel C. Klesh, Andrew T. Arlas, Jessica A. Cutler, James W.
Copyright Year	2013
Abstract	Abstract This paper presents the design and implementation of the Global Positioning System (GPS) subsystem for the Radio Aurora eXplorer (RAX) CubeSat. The GPS subsystem provides accurate temporal and spatial information necessary to satisfy the science objectives of the RAX mission. There are many challenges in the successful design and implementation of a GPS subsystem for a CubeSat-based mission, including power, size, mass, and financial constraints. This paper presents an approach for selecting and testing the individual and integrated GPS subsystem components, including the receiver, antenna, low noise amplifier, and supporting circuitry. The procedures to numerically evaluate the GPS link budget and test the subsystem components at various stages of system integration are described. Performance results for simulated tests in the terrestrial and orbital environments are provided, including start-up times, carrier-to-noise ratios, and orbital position accuracy. Preliminary on-orbit GPS results from the RAX-1 and RAX-2 spacecraft are presented to validate the design process and pre-flight simulations. Overall, this paper provides a systematic approach to aid future satellite designers in implementing and verifying GPS subsystems for resource-constrained small satellites.
Starting Page	127
Ending Page	138
Page Count	12
File Format	PDF HTM / HTML
DOI	10.1016/j.actaastro.2012.12.009
Volume Number	87
Alternate Webpage(s)	https://saraspangelo.files.wordpress.com/2012/09/rax_gps_design_combined.pdf
Alternate Webpage(s)	https://doi.org/10.1016/j.actaastro.2012.12.009
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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