Title :
A new reliability evaluation method for spaceflight telemetry, tracking and control system
Author :
Jimin Lu ; Xiaoyue Wu
Author_Institution :
Sch. of Inf. Syst. & Manage., Nat. Univ. of Defense Technol., Changsha, China
Abstract :
This paper presents a new approach to evaluate the reliability of the space flight telemetry, tracking and control (TT&C) system which is a complex and repairable phased-mission system. It is difficult to use existing analytical approaches to evaluate the reliability of repairable phased-mission systems as the number of components increases to a large scale. This paper presents a simple “path-vector” model with considering only effective states which is a tiny part of all states. Hence this model is able to avoid huge-scale sparse matrix which must be computed in traditional Markovian methods. Compared with the Markov-BDD approach, the proposed model eliminates the need to find an appropriate but cumbersome BDD ordering strategy, which greatly simplifies the model development. The effectiveness and correctness of our approach is analyzed by comparing with the simulation result.
Keywords :
Markov processes; binary decision diagrams; command and control systems; satellite links; satellite telemetry; satellite tracking; sparse matrices; telecommunication network reliability; Markov-BDD approach; Markovian methods; model development; path vector model; reliability evaluation method; repairable phased-mission system; spaceflight telemetry tracking and control system; sparse matrix; Boolean functions; Computational modeling; Data structures; Maintenance engineering; Markov processes; Reliability; Vectors; continuous time Markov chain; maintainability; phased-mission system; vector of matrices;
Conference_Titel :
Quality, Reliability, Risk, Maintenance, and Safety Engineering (QR2MSE), 2013 International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4799-1014-4
DOI :
10.1109/QR2MSE.2013.6625546