The availability parameters system of satellite navigation system

For diversified classification and non-systematic relationship between availability parameters, this paper addresses the structural composition of the satellite navigation system availability parameters, influencing factors, failure and repair process and the relationship between all levels. On this basis, we can systematically carry out the evaluation of the availability of the entire system so as to provide a certain support for the work related to performance and reliability of the satellite navigation system. In further research, we can consider the influence of satellite-ground links and other factors such as environment and landforms on the system availability.