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运用基于Bayes的方法对红外空空导弹进行抗干扰性能评估时,只能分别得到导引头和导弹控制系统的抗干扰概率pg、pc及其置信区间,而难以求出导弹复杂系统的抗干扰概率在一定的置信度下的置信区间。针对该问题,提出用Bayes近似限的方法拟合导弹导引头、控制系统的整个串联系统的抗干扰概率的分布,得出该复杂系统的置信度为γ的近似置信区间的求解公式,并给出导弹串联系统数字仿真中抗干扰概率的置信区间的求解实例,对该求解方法的正确性进行了验证。
When using Bayes-based method to evaluate the anti-jamming performance of the infrared air-to-air missile, the anti-jamming probability pg, pc and its confidence interval of the seeker and the missile control system can only be obtained separately, but it is difficult to find the anti-jamming probability of the missile complex system Confidence intervals under a certain degree of confidence. In order to solve the problem, this paper proposes Bayes approximation method to fit missile seeker, and control the distribution of anti-jamming probability of the whole series system. The approximate confidence interval for the complex system is obtained. An example of solving the confidence interval of anti-interference probability in the numerical simulation of missile series system is given, and the correctness of the solution method is verified.