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屏蔽数据下航天器电源系统可靠性的统计分析 被引量:5

Statistic Analysis of the Reliability for Power Supply of Spacecraft with Masked System Life Test Data
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摘要 基于屏蔽数据和定数截尾情形,利用概率元方法建立了样本的似然函数,推导出航天器电源系统半导体器件参数、可靠性及失效率的极大似然估计和Bayes估计,并讨论了相应的最小后验风险,最后利用Monte-Carlo方法验证了本文估计方法的正确性和可行性。 The likelihood function of the model is built,which is based on masked system life test data,type Ⅱ censored life test and using probability element method.Then,the MLE and Bayes estimations of parameters,reliability and failure rate are derived for spacecraft power components.Finally,correctness and feasibility of the conclusions are proved by using Monte-Carlo simulation.
作者 刘英 师义民
机构地区 西北工业大学
出处 《航天控制》 CSCD 北大核心 2010年第2期70-74,共5页 Aerospace Control
基金 国家自然科学基金项目(70471057) 陕西省教育厅自然科学基金项目(03Jk065)
关键词 屏蔽数据 航天器电源系统 定数截尾 BAYES估计 Masked data Spacecraft power supply TypeⅡcensored Bayes estimations
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参考文献8

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二级参考文献4

共引文献15

同被引文献28

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