Systems Engineering and Electronics ›› 2022, Vol. 44 ›› Issue (8): 2621-2627.doi: 10.12305/j.issn.1001-506X.2022.08.27

• Guidance, Navigation and Control • Previous Articles     Next Articles

Estimation method of hit probability of anti-cruise missile weapon based on normal-inverse Gamma distribution

Kang LI, Xianming SHI*, Guangning LI, Haobang LIU   

  1. Shijiazhuang Campus, Army Engineering University, Shijiazhuang 050003, China
  • Received:2021-04-16 Online:2022-08-01 Published:2022-08-24
  • Contact: Xianming SHI

Abstract:

Effective estimation of hit probability of anti-cruise missile weapon system is the basis of determining ammunition consumption of anti-cruise missile weapon system. The problem of insufficient data caused by the high cost in the anti-cruise missile test makes it difficult to estimate the hit probability of the anti-cruise missile weapon system. Considering that the target surface's landing point obeys the two-dimensional joint normal distribution in the air defense test, and with the characteristics of equivalent rectangular domain for cruise missile, a hit probability estimation method of anti-cruise missile weapon system based on normal-inverse Gamma distribution is proposed. Normal distribution and inverse Gamma distribution are selected as the prior distribution of hit probability characteristic parameters of the anti-cruise missile weapon system, and the corresponding posterior distribution function is obtained by the Bayesian analysis method. Parameter estimation is used to obtain the hyper-parameter in the prior distribution, and the maximum posterior estimate of the hit probability is determined. The example shows that the method is operable and has broad application prospects.

Key words: hit probability, Bayesian inference, normal-inverse Gamma distribution, maximum posterior estimation

CLC Number: 

[an error occurred while processing this directive]