Testing and Development of the UT Orion GPS Receiver
With hardware modi ed to survive and operate in space as well as software configured for the high-dynamic signal tracking associated with orbital ight, the UT Orion spaceborne GPS receiver can provide six degree of free- dom spatial information in a small, low-cost package. The use of this receiver on three upcoming satellite missions, FASTRAC, PnPSat, and ANDE, has motivated this study, which includes the development of additional units as well further modi cations and associated tests of the hardware and software. The hardware manufacture experience is presented with particular focus on the problems encountered and associated workarounds. Following an established method for GPS receiver benchmarking, the raw measurement accuracy of the newly manufactured receivers was veri ed. Building upon previous work, ad- ditional testing was performed to clarify the attitude determination accuracy of the receiver. The pulse per second capability of the UT Orion receiver was enabled and tested thereby expanding the device’s feature set
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