Space applications' requirements, especially when scientific payload is considered, are rapidly increasing. A way to satisfy such requirements without increasing too much space, weight, and power consumption of the on-board equipment, is to exploit capabilities of new multi-processor system-on-chips (MPSoCs). A MPSoC-based computer would allow integration on a single equipment of several applications. However, there is not any space-qualified MPSoC, yet. This paper describes a mixed-criticality system (MCS) implementing a prototypical scientific payload computer for a space mission. The main focus is on the issue of using commercial-off-the-shelf (COTS) MPSoC in radioactive environment to deploy MCS implementing a payload computer. The paper states the beforementioned issue and a set of countermeasures to detect issues. The system is evaluated for dependability against single event effects (SEEs) through fault-injection simulation experiments. Results of such experiments are used to compute availability figures of a payload computer implementing described countermeasures, considering the radiation environment of the geostationary orbit.


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    Title :

    Dependable MPSoC-Based Mixed-Criticality Systems for Space Applications


    Contributors:


    Publication date :

    2018-06-01


    Size :

    3678390 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English





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