ABSTRACT

The use of redundant equipment is one of the fault-tolerant techniques that permit a high reliability assignment to the services provided by a Satellite Data Communication System. However, the redundancy efficiency depends on a good fault coverage.

As the coverage directly influences the system reliability, it is important to characterize the recovered fault proportion in order to accurately determine the coverage factor of redundant equipment and to evaluate the impact of this parameter on the overall system reliability.

This paper aims to describe the procedures related to the coverage factor determination of the SAMSAT (a TDMA system) baseband equipment, during the product development stages. Further, this paper shows the unavailability estimated values of this equipment set, considering determinant factors for an adequate reliability performance, such as coverage and Mean Time to Repair (MTTR).