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Accession Number N20120013073
Title Orion GN and C Model Based Development: Experience and Lessons Learned.
Publication Date 2012
Media Count 16p
Personal Author J. R. Henry M. C. Jackson
Abstract The Orion Guidance Navigation and Control (GN&C) team is charged with developing GN&C algorithms for the Exploration Flight Test One (EFT-1) vehicle. The GN&C team is a joint team consisting primarily of Prime Contractor (Lockheed Martin) and NASA personnel and contractors. Early in the GN&C development cycle the team selected MATLAB/Simulink as the tool for developing GN&C algorithms and Mathworks autocode tools as the means for converting GN&C algorithms to flight software (FSW). This paper provides an assessment of the successes and problems encountered by the GN&C team from the perspective of Orion GN&C developers, integrators, FSW engineers and management. The Orion GN&C approach to graphical development, including simulation tools, standards development and autocode approaches are scored for the main activities that the team has completed through the development phases of the program.
Keywords Algorithms
Computer programs
Computerized simulation
Configuration management
Crew exploration vehicle
Flight tests
Lessons learned
Software development tools
Spacecraft control
Spacecraft guidance

Source Agency National Aeronautics and Space Administration
NTIS Subject Category 84G - Unmanned Spacecraft
62B - Computer Software
84C - Manned Spacecraft
Corporate Author National Aeronautics and Space Administration, Houston, TX. Lyndon B. Johnson Space Center.
Document Type Conference proceedings
Title Note N/A
NTIS Issue Number 1303
Contract Number N/A

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