基于Bayes方法的导航用国产行波管放大器可靠性评估OA
Bayesian Based Reliability Evaluation on Domestic TWTAs Used in Navigation Satellites
导航用国产行波管放大器在轨数量少,工作时长不足,属于小子样产品.利用传统的统计学方法评定可靠性结果趋于保守,而利用先验信息的Bayes方法正好弥补这一不足.本文给出了一种创建导航用国产行波管放大器可靠性先验分布的方法,并在此基础上,利用Bayes方法实现了先验信息与现场信息的有效融合.对航天五院西安分院研制的导航用国产化行波管放大器在轨产品,采用指数型先验分布的产品可靠性评估,可以在小样本情况下显著提高评估精度.
Domestic traveling wave tube amplifiers (TWTAs) used in navigation is few in orbit with limited working time,which belongs to small sample products.Reliability evaluation results obtained by traditional statistical methods tend to be conservative,while Bayesian method based on prior information can make up for this deficiency.A method for establishing the reliability prior distribution of domestic TWTAs for navigation is presented,and so prior informat…查看全部>>
冯西贤;梁英;王勇;范培云
中国空间技术研究院西安分院,陕西西安710100中国空间技术研究院西安分院,陕西西安710100中国空间技术研究院西安分院,陕西西安710100中国空间技术研究院西安分院,陕西西安710100
信息技术与安全科学
Bayes方法行波管放大器可靠度
BayesianSpace traveling wave tube amplifierReliability
《真空电子技术》 2017 (2)
5-7,3
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