Title :
Time and Space Partitioning in Spacecraft Avionics
Author :
Windsor, James ; Hjortnaes, Kjeld
Author_Institution :
On-board Software Syst. Sect., Eur. Space Agency, Noordwijk, Netherlands
Abstract :
This paper will describe the benefits of incorporating software time and space partitioning (TSP), based upon the aeronautic IMA concept, into the spacecraft avionics architecture to manage the growth of mission functions implemented in the on-board software. The paper addresses how TSP can be used to safely integrate applications of different criticality and security classifications, and how incremental validation is supported to control the impact of software modifications to the system.
Keywords :
avionics; space vehicles; on-board software; security classification; software modification; software time and space partitioning; spacecraft avionics architecture; Aerospace electronics; Aerospace industry; Application software; Computer architecture; Hardware; Robustness; Software systems; Space missions; Space technology; Space vehicles; avionics; incremental validation; secure embedded software; time and space partitioning;
Conference_Titel :
Space Mission Challenges for Information Technology, 2009. SMC-IT 2009. Third IEEE International Conference on
Conference_Location :
Pasadena, CA
Print_ISBN :
978-0-7695-3637-8
DOI :
10.1109/SMC-IT.2009.11
