A PC based test system for an on-board computer |
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| Authors: | Dinesh Kumar G. Nagendra Rao G. Jain Y.K. |
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| Affiliation: | Lab. for Electro-Opt. Syst., Indian Space Res. Organ., Bangalore; |
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| Abstract: | This paper presents a robust method of testing a processor based on-board computer used in the Indian remote sensing satellite (IRS-1C). The novelty of this scheme lies in a judicious mix of software and hardware approaches adopted to realise this PC-based system. All the electrical interfaces (like telemetry, Telecommand, timer and star sensor) are simulated. They are fabricated as add-on cards to PC-AT (ISAbus). The on-board computer controls two star sensors apart from handling three telemetry streams and accepting more than one hundred Telecommands |
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