On the design and implementation of a dependable space instrument

Author

Woolliscroft, L.J.C. ; Yearby, K.H. ; Alleyne, H.St.C. ; Thompson, J.A. ; Dunford, C.M.

Author_Institution

Dept. of Autom. Control & Syst. Eng., Sheffield Univ., UK

fYear

1995

fDate

25-27 Jan 1995

Firstpage

366

Lastpage

373

Abstract

The Digital Wave Processor, DWP, is an example of a dependable distributed system which has been built and will be flown on the ESA/NASA Cluster satellites. Pre-flight testing of the DWP instruments is nearly complete and the results of this programme of testing are described. Much of the fault-tolerant behaviour of DWP has been tested and found to function as expected. Of the problems which have been found the majority are attributed to the initial definition of hardware and software interfaces. Various small hardware limitations and problems have been experienced. These have generally been overcome without there being any impact on the fault-tolerant design, but they have consumed a considerable amount of engineering effort

Keywords

aerospace computing; fault tolerant computing; parallel processing; special purpose computers; DWP; Digital Wave Processor; ESA/NASA Cluster satellites; dependable distributed system; dependable space instrument; design; fault-tolerant behaviour; implementation; Data handling; Earth; Fault tolerance; Hardware; Instruments; NASA; Satellites; Space vehicles; Telecommunication control; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Parallel and Distributed Processing, 1995. Proceedings. Euromicro Workshop on

Conference_Location

San Remo

Print_ISBN

0-8186-7031-2

Type

conf

DOI

10.1109/EMPDP.1995.389186

Filename

389186