Time and Space Partitioning in Spacecraft Avionics

Author

Windsor, James ; Hjortnaes, Kjeld

Author_Institution

On-board Software Syst. Sect., Eur. Space Agency, Noordwijk, Netherlands

fYear

2009

fDate

19-23 July 2009

Firstpage

13

Lastpage

20

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/SMC-IT.2009.11

Filename

5226855