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Volume 41 Issue 8
Aug.  2015
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Journal of Beijing University of Aeronautics and Astronautics  > 2015  >  41(8): 1505-1512.
ZHANG Xishan, HUANG Kaoli, YAN Pengcheng, et al. Method of confirming testability verification test scheme based on prior information[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(8): 1505-1512. doi: 10.13700/j.bh.1001-5965.2014.0628(in Chinese)
Citation: ZHANG Xishan, HUANG Kaoli, YAN Pengcheng, et al. Method of confirming testability verification test scheme based on prior information[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(8): 1505-1512. doi: 10.13700/j.bh.1001-5965.2014.0628(in Chinese)
shu

Method of confirming testability verification test scheme based on prior information

doi: 10.13700/j.bh.1001-5965.2014.0628
  • 1.

    Four Department, Ordnance Engineering College, Shijiazhuang 050003, China

  • 2. Ordnance Technological Research Institute, Ordnance Engineering College, Shijiazhuang 050003, China

  • Received Date: 13 Oct 2014
  • Publish Date: 20 Aug 2015
    Abstract
  • Existing testability verification test schemes need a large number of fault samples and the engineering implementation is difficult. To solve this problem, the Bayes testability verification test scheme was proposed based on the prior information for complex equipment. Firstly, the uncertainty of testability prior information was described using Beta distribution and the prior distribution hyper-parameter was determined by the prior information from different sources. Then, the uncertainty measure and supporting degree were proposed as the weight coefficient of prior information, and the corresponded fusion algorithm was designed. Finally, the Bayes decision model was estabilished for the testability qualification test scheme of the binomial equipments using the fused prior information. Compared with the classical counterpart, the new test scheme reduces the fault sample size by up to 40% or so, and avoids the aggressive of the traditional Bayes testability verification test scheme.

     

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