Optimal Monitoring Time Interval for Radio-Electronic Equipment Unsteady Failure Rate
https://doi.org/10.32603/1993-8985-2018-21-3-48-56
Abstract
The method for determining the optimal duration of monitoring interval of non-stationary Poisson failure rate of radio-electronic equipment (REE) for a wide range of stationary processes, modulating it by intensity. To know the optimal du-ration of monitoring interval, taking into account the flow double stochasticity is necessary to calculate and predict REE reliability factor, operating in near-Earth space as a part of artificial Earth satellites (AES). In the course of calculation REE is exposed to ionizing radiation of unsteady flows and electrostatic charges, leading to short duration or irreversible failures. Based on the known linear model of double stochastic point process a detailed mathematical analysis is made for the first time ever and analytical expressions were obtained for the optimal monitoring time interval with respect to minimum combined standard uncertainty. Since the true nature of unsteadiness is unknown, analysis is carried out for Gaussian and Gauss-Markov modulating processes, covering a wide range of random processes. The analysis results confirm practical similarity of optimal monitoring time interval values for a wide range of modulating processes.
About the Author
S. S. Sokolov
Saint Petersburg Electrotechnical University "LETI" .
Russian Federation
Russian Federation
Sergey S. Sokolov – D.Sc. in Engineering (1996), Professor (1998), Professor of the Micro Radio Electronics and Technology of Radio Equipment Department of Saint Petersburg Electrotechnical University "LETI". The author of more than 75 scientific publications. Area of expertise: double-stochastic processes; system engineering.
5, Professor Popov Str., 197376, St. Petersburg.
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Review
For citations:
Sokolov S.S. Optimal Monitoring Time Interval for Radio-Electronic Equipment Unsteady Failure Rate. Journal of the Russian Universities. Radioelectronics. 2018;(3):48-56. (In Russ.) https://doi.org/10.32603/1993-8985-2018-21-3-48-56
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