The needs of on-board automation are identified and a generic approach for the design and exploitation of more autonomous spacecraft is proposed. Autonomy requirements were established through analysis of mission scenarios for Earth observation from a Sun synchronous orbit; a large automatic platform in low Earth orbit; a telecommunication mission in geostationary orbit; and a deep space scientific mission. A hierarchical and decentralized system structure to limit failure propagation, simplify interfaces and to get a predictable system; organization of on-board management in terms of routine, crisis and end-product management; and autonomous orbit determination and control are suggested. A system architecture that defines the functional tasks of the ground control center, the on-board management system and the on-board subsystems and payloads is outlined. The operational relationships between these three parts are integrated in a general model of operating modes that covers routine and crisis phases.
Standard Generic Approach for Spacecraft Autonomy and Automation, Phase 2 (SGASA-2). Volume 2. Technical Report
1985
373 pages
Report
Keine Angabe
Englisch