Sensitivity Analysis of Lunar PNT for Surface Users with Nonuniform Ranging Error

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Sensitivity_Analysis_of_Lunar_PNT_for_Surface_Users_with_Nonuniform_Ranging_Error.pdf (3.33 MB)
Author(s)
Gabhart, Austin
Broering, Alex
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Daniel Guggenheim School of Aerospace Engineering
The Daniel Guggenheim School of Aeronautics was established in 1931, with a name change in 1962 to the School of Aerospace Engineering
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https://hdl.handle.net/1853/76721
Abstract
As operations in cislunar space and the lunar economy develop, there is a pressing need for accurate and reliable Position, Navigation, and Timing (PNT) support on and around the Moon. This paper seeks to provide insight into the primary contributions to positioning error on the lunar surface. To improve the estimations of error, an alternative metric, user equivalent range error weighted geometric dilution of precision (KDOP), is presented without the assumption that ranging error is constant across systems. Parameters related to user error, onboard clock stability, and orbit determination performance are varied to find and quantify monotonic relationships between these design parameters and performance metrics. It is found that KDOP is affected by both clock stability and orbit determination support performance. This is similar to the results for user equivalent range error except, in some cases, it is of the opposite sign.
Sponsor
Georgia Tech Research Institute
Date
2025-01
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Text
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Pre-print
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