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Stochastic Optimal Control for Powered Descent Guidance

Entry, Descent, and Landing (EDL) is the process of guiding a spacecraft entering a planet's atmosphere, decelerating from orbit, and descending to a safe landing site on the planet's surface. Atmospheric disturbances, localization error, and other factors contribute to substantial deviations from the nominal descent trajectory that must be accounted for when selecting a landing target. NASA Technology Area (TA) 9.2.6 (Large Divert Guidance) identifies a guarantee on satisfaction of constraints, optimal or near-optimal fuel consumption, and on-board computational feasibility as necessary components of a next generation solution. This research constitutes an analysis of stochastic process theory as applied to the descent guidance problem, with the objective of improving fuel performance. Poster

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Sponsors

This project is supported by NASA Space Technology Research Fellowship.

Selected Publications


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