Autonomous Spacecraft Navigation Using Above-the-Constellation GPS Signals

Discipline: Guidance, Navigation, and Control
Webcast Air Date: 12/09/2015

For more than a decade, engineers at NASA Goddard have been working on multiple fronts to advance high-altitude GPS navigation. This application poses challenges, because receivers operating above the GPS constellation are subject to reduced signal strength and availability. In this webcast, I will give an overview of past and ongoing work in this area including the development of specialized GPS receivers and navigation software, on-orbit demonstrations and operations, including the record-setting Magnetospheric Multiscale mission, a GPS transmit antenna characterization effort, and a policy effort to define and protect the "GPS Space Service Volume".

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