TWTA On-Orbit Reliability for Satellite Industry

Nicol, Eric F.; Robison, Jason

doi:10.1109/ted.2018.2802868

Cited by 4 publications

(2 citation statements)

References 7 publications

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“…Therefore, digging out some valuable reliability information from satellite failure data can be used to assess the satellite operation status on the one hand, and can provide a certain theoretical basis for the on-orbit maintenance of the satellites on the other hand. Then, before the satellite fails, the practical failure control measures can be performed to repair and improve the satellite reliability performance [3]- [4].…”

Section: Introductionmentioning

confidence: 99%

“…and is the "year") are used as the training samples to model the satellite failure distribution, and the satellite failure rate data of =7.4027 14.2658 t a a  are used as the test samples to verify the satellite failure distribution. Based on the single Weibull distribution model ， the satellite failure rate data of =0.0055 7.4027 t a a are used for statistical modeling of satellite failure, and the parameter estimation results obtained by using least squares logarithm algorithm are shown in(3). Moreover, the estimated satellite failure distribution is shown in Fig.2.…”

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confidence: 99%

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Statistical Modeling and Analysis of Satellite Failure Based on 2-Weibull Segmented Model

Wang¹,

Zhou

2021

IEEE Access

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Statistical modeling and analysis of satellite failure is an effective way to master the satellite operating status, and the results can provide important theoretical basis for the performance improvement of satellite reliability. In view of the dual-period characteristics of satellite failure distribution, a 2-Weibull segmented model for statistical modeling of satellite failure has been proposed in this paper. In order to improve the robustness of the parameter estimation for 2-Weibull segmented model, a parameter estimation method for 2-Weibull segmented model based on least squares Hough transform algorithm is continued to be proposed in this paper. And the feasibility and effectiveness of the parameter estimation method are verified by simulation experiments. The 2-Weibull segmented model is used for statistical modeling of 1584 satellite failure samples. The results show that, compared with the traditional single Weibull distribution model, the 2-Weibull segmented model proposed in this paper improves the fitting accuracy of satellite failure distribution by 46.15%.

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%