文档介绍：第20卷第6期中国惯性技术学报 2012年12月 Journal of Chinese Inertial Technology Dec. 2012 收稿日期:2012-07-25;修回日期:2012-11-23 基金项目:国防预研项目(513090601)作者简介:马静(1958—),女,高级工程师,硕士生导师,主要从事光纤陀螺及相关技术研究。E-mail:******@buaa. 文章编号:1005-6734(2012)06-0759-06 基于多源信息融合技术的光纤陀螺可靠性估计马静,叶勉,晁代宏,陈淑英,于梅(北京航空航天大学仪器科学与光电工程学院,北京 100191)摘要:为了评估小样本情况下光纤陀螺的可靠性,开展基于多源信息融合技术的 Bayes(贝叶斯)评估方法研究,对样本的先验信息进行分析,采用随机加权法通过关键器件的信息来确定先验分布,结合小样本试验数据所确立的似然函数,在不降低可信度的情况下对产品的可靠性进行评估。由仿真结果可知,在相同置信度下,Bayes 评估方法将可信区间长度缩短为传统方法的1/16。该方法提高了估计结果精度对解决小样本下的可靠性评估问题具有重要的理论意义和参考价值。关键词:光纤陀螺;Bayes方法;可靠性估计;先验信息;似然函数中图分类号: 文献标志码:A Reliability estimation of FOGs based on information fusion technology of multi-sources MA Jing, YE Mian, CHAO Dai-hong, CHEN Shu-ying, YU Mei (School of Instrument Science & Opto-electronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China) Abstract: To estimate the reliability of fiber optic gyroscope on the small sample testing data, the Bayes (bayesian) estimation methods were studied based on the information fusion technology of sources. The priori information of stylebooks was analyzed, and the prior distribution was determined by the key apparatus’s information through the stochastic weighted method, and the likelihood function bined