Abstract: First, according to defects in search space and convergence time of traditional A* algorithm, an improved A* algorithm is put forward. Second, factors of comprehensive route planning in aircraft penetration phase are analyzed. On this basis, a cost function model is built up. Then radar suppression area under standoff jamming is researched on and the jamming location is ascertained. The comprehensive route planning model in aircraft penetration phase under standoff jamming is constructed. Finally, the path of aircraft penetration phase is planned comprehensively with improved A* algorithm. From the simulation, the improved A* algorithm can effectively work in path planning of aircraft penetration phase and decrease the cost of path, increase the probability of penetration to accomplish the mission.

Key words: A* algorithm, penetration phase, comprehensive route planning, standoff jamming

摘要： 针对传统A*算法搜索空间以及收敛时间等方面的不足，首先提出了改进的A*算法；其次对战斗机突防段综合航迹规划影响因素进行分析，在此基础上建立了战斗机对地攻击突防段代价函数数学模型；然后对支援干扰下的雷达压制区进行研究，确定干扰机位置，由此条件构建支援干扰下战斗机突防段综合航迹规划模型；最后应用改进的A*算法进行战斗机突防段综合航迹规划。仿真实例表明，基于改进的A*算法可以有效地进行突防段的航迹规划，可以有效地减小航迹的代价，提高战斗机的突防概率，有利于我方战斗机成功突防。

关键词: A*算法, 突防段, 综合航迹规划, 支援干扰