雷达威胁环境下的无人机三维航迹规划  

3-D path planning for UAV in radar threat condition

作　　者：郝震[1] 张健[1] 朱凡[1] 蔡满意[1] 

机构地区：[1]空军工程大学工程学院,陕西西安710038

出　　处：《飞行力学》2010年第1期47-52,共6页Flight Dynamics

摘　　要：提出了一种雷达威胁环境下应用A*算法进行低空突防三维航迹规划的方法。首先对地形高程数据进行综合平滑处理,建立满足无人机机动性能要求的安全飞行曲面,并结合雷达威胁量化模型,计算出地形遮蔽雷达盲区的范围,最后在满足地形遮蔽雷达盲区的安全飞行曲面上运用A*算法规划出三维飞行航迹。仿真结果显示,该算法能简单、快速地获得三维最优航迹,易于工程实现。A 3-D vehicle path planning method for low altitude penetration based on an A^＊ algorithm in radar threat conditions is proposed. Digital terrain information is processed by an integrated terrain elevation smoothing algorithm at first, and a safe surface which integrates the maneuverability of UAV and mathematical models of radar threat are built, a terrain masking radar blind space is calculated. The A^＊ algorithm is used to plan three-dimensional vehicle paths on the safe surface which satisfies the terrain masking radar blind space finally. The simulation result indicates the method could obtain optimal path in a 3-D environment and the path planning algorithm is simple, efficient and easily realized in engineering.

关 键 词：航迹规划 低空突防 数字地图 地形遮蔽雷达盲区 A*算法 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]