An on board microcomputer for a space instrument
Abstract
An on-board microcomputer for a plasma momentum and ion composition analyzer is designed and constructed by the Technical Research Centre of Finland and the Finnish Meteorological Institute. The plasma analyzer is designed primarily by Kiruna Geophysical Institute in Sweden and is expected to be launched in the Phobos spacecraft of USSR towards Mars in 1988. The microcomputer is used for handling the measurement results and controlling the plasma analyzer. The main parts of the microcomputer are a 16-bit microprocessor, a program memory of 8 kilowords, a RAM-memory of 16 kilowords, and a watchdog-based self control. The reliability aspects and the special requirements of the space environment are taken into account in the design.
- Publication:
-
International Beacon Satellite Symposium on Radio Beacon Contribution to the Study of Ionization and Dynamics of the Ionosphere and to Corrections to Geodesy and Technical Workshop
- Pub Date:
- 1986
- Bibcode:
- 1986ibs..symp..367S
- Keywords:
-
- Airborne/Spaceborne Computers;
- Mars Probes;
- Microcomputers;
- Onboard Data Processing;
- Plasma Diagnostics;
- Plasma Probes;
- Central Processing Units;
- Computer Design;
- Fault Tolerance;
- Radiation Tolerance;
- Random Access Memory