雷达威胁源最优规避弹道的决策算法与仿真

针对存在雷达威胁源的飞行环境,研究了受限于战术导弹飞行特性的自主规避策略与决策算法。由于变分法能够有效处理飞行特性约束条件,并能给出规避弹道的解析解,深入分析了规避单部探测雷达的变分解法;提出规避策略解空间的概念,基于贝叶斯决策的动态规划方法,确定规避弹道的拓扑结构,进而基于变分思路,求解拓扑网络各结点间的优化弹道,实现在解空间约束下的多个雷达威胁源的全局最优规避问题;给出了不同雷达威胁源分布情况下的计算机仿真。

Optimization of Evasive Trajectories for Radar Threats Avoidance

The problem of optimal evasive trajectories of tactical missiles for radar threats avoidance was examined. Calculus of Variations was introduced to deal with the flight constraints and an analytic solution for monostatic radar avoidance was obtained. Based on the analytic solution, the concept of solution space was proposed and the Bayesian Decision Theory Combined Dynamic Programming Algorithm was adopted to get the global optimal solution to problem of multiple radars avoidance. Optimal evasive trajectories in various radar distributions were provided thru simulation and the effectiveness of the method to cover the flight constraints was verified.