دانلود مقاله ISI انگلیسی شماره 140190
کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
140190 2018 12 صفحه PDF سفارش دهید 8113 کلمه
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عنوان انگلیسی
Reliability analysis of multicellular system architectures for low-cost satellites
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Acta Astronautica, Volume 147, June 2018, Pages 183-194

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چکیده انگلیسی

Multicellular system architectures are proposed as a solution to the problem of low reliability currently seen amongst small, low cost satellites. In a multicellular architecture, a set of independent k-out-of-n systems mimic the cells of a biological organism. In order to be beneficial, a multicellular architecture must provide more reliability per unit of overhead than traditional forms of redundancy. The overheads include power consumption, volume and mass. This paper describes the derivation of an analytical model for predicting a multicellular system's lifetime. The performance of such architectures is compared against that of several common forms of redundancy and proven to be beneficial under certain circumstances. In addition, the problem of peripheral interfaces and cross-strapping is investigated using a purpose-developed, multicellular simulation environment. Finally, two case studies are presented based on a prototype cell implementation, which demonstrate the feasibility of the proposed architecture.

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