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Integrated Flush Air Data Sensing System Modeling for Planetary Entry Guidance with Direct Force ControlFlush air data sensing (FADS) systems have been previously used at both Earth and Mars to provide onboard estimates of angle of attack, sideslip angle, and dynamic pressure. However, these FADS data were often not used in an in-the-loop sense to inform the onboard guidance and control systems. A method to integrate FADS-derived density and wind estimates with a numerical predictor-corrector guidance algorithm is presented. The method is demonstrated in a high-fidelity simulation of a human-scale Mars entry vehicle that utilizes a hypersonic inflatable aerodynamic decelerator (HIAD) with direct force control. Effects on guidance commands and state uncertainties both with and without FADS system modeling are presented and discussed.






Document ID
20200002412
Acquisition Source
Langley Research Center
Document Type
Conference Paper
Authors
Lugo, Rafael A. (Analytical Mechanics Associates, Inc. Hampton, VA, United States)
Karlgaard, Christopher D. (Analytical Mechanics Associates, Inc. Hampton, VA, United States)
Powell, Richard W. (Analytical Mechanics Associates, Inc. Hampton, VA, United States)
Cianciolo, Alicia D. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
April 14, 2020
Publication Date
January 7, 2019
Subject Category
Lunar And Planetary Science And Exploration
Space Transportation And Safety
Report/Patent Number
NF1676L-30319
Meeting Information
Meeting: 2019 AIAA SciTech Forum and Exposition
Location: San Diego, CA
Country: United States
Start Date: January 7, 2019
End Date: January 11, 2019
Sponsors: American Institute of Aeronautics and Astronautics (AIAA)
Funding Number(s)
WBS: 394364.04.22.23
Distribution Limits
Public
Copyright
Public Use Permitted.

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