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- W84976072 abstract "Scheduled to launch in September 2014 atop a Delta IV Heavy from the Kennedy Space Center, the Orion Multi-Purpose-Crew-Vehicle (MPCV's) maiden flight dubbed Exploration Flight Test -1 (EFT-1) intends to stress the system by placing the uncrewed vehicle on a high-energy parabolic trajectory replicating conditions similar to those that would be experienced when returning from an asteroid or a lunar mission. Unique challenges associated with designing the navigation system for EFT-1 are presented in the narrative with an emphasis on how redundancy and robustness influenced the architecture. Two Inertial Measurement Units (IMUs), one GPS receiver and three barometric altimeters (BALTs) comprise the navigation sensor suite. The sensor data is multiplexed using conventional integration techniques and the state estimate is refined by the GPS pseudorange and deltarange measurements in an Extended Kalman Filter (EKF) that employs the UDUT decomposition approach. The design is substantiated by simulation results to show the expected performance." @default.
- W84976072 created "2016-06-24" @default.
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- W84976072 date "2014-01-31" @default.
- W84976072 modified "2023-09-27" @default.
- W84976072 title "Orion Exploration Flight Test-l (EFT -1) Absolute Navigation Design" @default.
- W84976072 hasPublicationYear "2014" @default.
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