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Using IDOS to Develop EAGLE into “Real” Flight Software to Support Responsive Missions

By  and D. T. Chen and D. T. Chen


The Integrated Development and Operations System (IDOS) is intended to be a rapid development and operations platform for new launch and atmospheric vehicles. A “real life experience ” of its use to develop an advanced guidance algorithm is described here. The Evolved Acceleration Guidance Logic for Entry (EAGLE) is an advancement to existing entry guidance algorithms (such as that flown on the Space Shuttle) and has the potential to reduce the amount of pre-mission design effort, increase the range of entry opportunities and contribute to achieving “aircraft like ” operations (i.e., responsive missions). EAGLE is based on the concept of planning and tracking aerodynamic acceleration profiles, a concept developed and proven effective in the Apollo and Shuttle programs. The most distinguishing feature of EAGLE relative to the Shuttle entry guidance is its ability to plan a three-dimensional trajectory, taking into account the longitudinal and lateral dimensions, and thereby handling entries as well as aborts with significant cross range motion. Development of EAGLE was started at the University of California, Irvine (UCI) under the supervision of Dr. Kenneth Mease. Part of its development was coordinated under the Marshall Space Flight Center’s (MSFC) Advanced Guidance and Contro

Year: 2004
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