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A real-time dynamic spacecraft simulator for the LANDSAT-D missionA real time dynamic simulator for LANDSAT D was developed and has played an integral role in the development and validation of both the ground control system and of the on-board flight software. The simulator utilized an electronic replica of the spacecraft on-board computer and data handling hardware interfaced to a VAX 11/780 computer and simulation software. Key features of the simulator design are a modular software architecture tailored to the VAX/VMS real time capabilities, a microprocessor controlled interface between the VAX and the flight hardware replica, complete simulation of the spacecraft and NASA network communication links, and a flexible and powerful scenario structuring and operator control capability. The design goals and trade-offs, software, and hardware design are summarized. The application of the simulator to the validation of both the ground systems and on-board software is reviewed in detail.
Document ID
19820017423
Document Type
Conference Paper
Authors
Coffin, A. R. (General Electric Co. Falls Church, VA, United States)
Date Acquired
August 10, 2013
Publication Date
January 1, 1982
Publication Information
Publication: NASA. Goddard Space Flight Center 12th Space Simulation Conf.
Subject Category
SPACECRAFT DESIGN, TESTING AND PERFORMANCE
Funding Number(s)
CONTRACT_GRANT: NAS5-2300
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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