Abstract
On-board data handling (OBDH) subsystem is the critical subsystem of satellite which is supplied with hot/warm/cold spare backups, also uses triplicated bus and redundant memories for high reliability. For satellite OBDH subsystem, we present an extended dynamic fault tree model (eDFT). Because analytic approach is restricted to particular models and some probability distributions of fault rate, we use Monte Carlo simulation to analysis eDFT instead of it. However, it needs much long time to implement Monte Carlo simulation, so we provide the transformation approach to accelerate the Monte Carlo simulation. Each eDFT gate can be implemented by logic gate of mathematical circuit. The analysis result of the approach shows that acceleration value changes over the size of the eDFT-TTFT units, number of FPGA logic gates of random number generators, and number of FPGA logic gates of TTFT, so this approach can be more accurate and much faster than computer- based simulation.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: DEStech Transactions on Engineering and Technology Research
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
