Sampling inspection analysis based on sequential posterior odd test model for torpedo system

The Bayesian method is adopted as an important and suitable approach to the reliability analysis and evaluation for torpedo system, because of its complexity and small sample tests. A sampling inspection method of Binomial distribution based on sequential posterior odd test (SPOT) was discussed in detail, which was used to the test for torpedo system. On the basis of the Bayesian theory and by making use of the prior information of the unknown parameters effectively, the sample size can be reduced greatly by the SPOT method. By analyzing the results of torpedo system test, it is proved that the SPOT method is effective to reduce the sample size and improve the test efficiency.