New reliability indices for first- and second-order discrete-time aggregated semi-Markov systems with an application to TT&C system

Research on reliability indices has received considerable attention recently in the field of reliability. In this work, two new reliability indices — multi-point bounded-covering availability and multi-interval bounded-covering availability — are introduced for discrete-time systems. Their explicit formulas are derived for discrete-time first- and second-order aggregated semi-Markov systems, whose state spaces are divided into three subsets …