”Performance analysis of
three RISC-based space-dedicated computers”
Abstract
Computers targeted for use in space forms a delicate group of systems.
Besides high performance, aspects such as error detection capabilities,
radiation resistance, small size and low power consumtion are of major
importance. This report highlights the impact at the total
system performance, when those aspects are higly considered. Six systems are
designed around three different processors in two configurations. The
first (minimum configuration) meets specification for an on-board space
computer while the second (maximum configuration) attempts to show maximun
performance.
This report was originally published as part of the
European Space Agency ”RISC evaluation study, contract number 8686/89/NL/JG(SC)”,
prepared by Saab-Space AB as ”Work Package 4, Evaluation of Processor
Configurations, Part 1: Hardware Designs”.