Formal Specification and Quantitative Analysis of a Constellation of Navigation Satellites
نویسندگان
چکیده
Satellites now form a core component for space based systems such as GPS and GLONASS which provide location and timing information for a variety of uses. Such satellites are designed for operating on orbit to perform tasks and have lifetimes of 10 years or more. Reliability, availability and maintainability (RAM) analysis of systems has been indispensable in the design phase of satellites in order to achieve minimum failures or to increase mean time between failures (MTBF) and thus to plan maintenance strategies, optimise reliability and maximise availability. In this paper, we present formal modelling of both a single satellite and a satellite navigation system and logical specification of their reliability, availability and maintainability properties respectively. The probabilistic model checker PRISM has been used to perform automated analysis of these quantitative properties.
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عنوان ژورنال:
- Quality and Reliability Eng. Int.
دوره 32 شماره
صفحات -
تاریخ انتشار 2016