对任意分布目标的舰炮对面区域射击瞄准点配置方法

为解决目标服从不规则分布情况下,舰炮对面射击瞄准点配置求解困难的问题,提出对任意分布目标的舰炮对面区域射击瞄准点配置方法。通过在离散空间内描述目标分布概率密度函数,直接给出数值形式的目标分布概率密度函数,避免解析形式下多次更新、更改对目标概率密度函数复杂度的提升;基于变分分析,求解数值形式的最优有效范围与最优中间函数;基于最优有效范围进行射击瞄准点初分配,之后基于共轭梯度法与最优中间函数进行射击瞄准点配置优化。仿真分析中,在目标服从规则分布情况下分别采用现有方法与所提方法求解瞄准点配置与对应毁伤概率,在目标服从不规则分布情况下采用所提方法求解瞄准点配置,并通过统计模拟法对比验证毁伤概率。结果表明,该方法在目标服从规则分布情况下与现有方法优化程度相当;同时,该方法能够求解目标服从不规则分布情况下的瞄准点配置,对应毁伤概率与理论最优毁伤概率相近。

Aim point configuration method for area shoot of naval gun to surface target with arbitrary distribution

To overcome the deficiency in solving aim point configuration for area shoot of naval gun to target with irregular distribution, the aim point configuration method for area shoot of naval gun to surface target with arbitrary distribution is presented. By describing target probability distribution function (PDF) in discrete space, the target PDF is directly express in a numerical form, avoiding the complexity increasement with multiple updating and〖JP〗 changing processes on target PDF in analytical formula form. Based on variational method, the numerical optimal valid region and optimal intermediate function are deduced. The initial aim point configuration is conducted with the optimal valid region. Furthermore, the aim point configuration is optimized through the optimal intermediate function with the conjugate gradient method. The simulation analysis is conducted under the following settings. The aim point configurations are solved with the existing method and the proposed method, and the aim point configuration is solved with the proposed method for target with irregular PDF and the kill probability comparison is conducted with Monte Carlo method. The results suggest that, the kill probability of the proposed method corresponds to the existing method’s for target with regular PDF. Meanwhile, this method can solve aim point configuration for target with irregular PDF with kill probability approximating the theoretical optimality.