Abstract
The applicability of the CAN bus technology for cost reduction potentials in the area of onboard automation of LEO-satellites is investigated. Due to its source from automotive applications the CAN bus technology is a very promising candidate in terms of functionality, performance, environmental robustness and cost. It furthermore supports efficiently functional redundancy due to its multi-master capabilities. The paper analyses the specific features of the CAN bus compared with other industrial field busses and discusses the functional performances for a combined telecommunication and earth observation reference mission. A simulation tool is presented which allows to analyse and optimise the bus arbitration design.
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