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为了使防空导弹优化的弹道更有效的拦截目标,依据多层次法理论,以杀伤概率最大为目标,设计导弹中制导段弹道和末制导段时间参数.整个模型分为3层,第1层是导弹中制导段弹道,第2层是导弹末制导段,第3层是战斗部毁伤目标.将一个层次视为一个子系统,多层次弹道优化问题实质上就是多学科设计优化问题.采用全局灵敏度方程方法计算参数之间的敏度,在系统层进行优化,最终可得到杀伤概率最大的弹道.最后进行了拦截空地导弹目标的计算示例,并采用了均匀实验设计方法和BP神经网络以减小计算量.结果证明全局灵敏度方程是求解多层次弹道优化设计的有效方法.
In order to make the target of air defense missile more effective to intercept target, based on the multi-level theory of law, with the maximum lethal probability as the target, the time parameters of ballistic guidance and final guidance are designed. The whole model is divided into three layers, The guided missile trajectory, the second layer is the missile guidance section, the third layer is the warhead damage targets.A layer is considered as a subsystem, multi-level ballistic optimization problem is essentially multidisciplinary design optimization problem.Using the global sensitivity Equation method to calculate the sensitivity between the parameters in the system layer optimization, and finally get the maximum probability of killing trajectory.Finally, the calculation of interception of ground-based missiles target examples and the use of uniform experimental design and BP neural network to reduce The results show that the global sensitivity equation is an effective method to solve the multi-level ballistic optimization design.