应用改进的电势理论规划三维飞行路径  

Three-dimensional Flight Path Planning by Using an Improved Electric Potential Theory

作　　者：刘丽峰[1,2] 张树清[1] 

机构地区：[1]中国科学院东北地理与农业生态研究所,长春130012 [2]中国科学院研究生院,北京100049

出　　处：《火力与指挥控制》2011年第4期175-178,共4页Fire Control & Command Control

基　　金：国家"十一五"科技支撑重点基金资助项目(2006BAD23B03)

摘　　要：改进了电势理论使其能回避地形威胁,规划实用的三维航迹。将模拟地形的高程数据矩阵按一定的权重叠加到威胁电场上,使威胁场不但能反映雷达、火力威胁而且能反映地形威胁;通过限定位于起始点和目标点之间的搜索范围,减少了计算的复杂度,保证飞行路径最终能到达目标点;同时,在上述航迹规划的基础上,由坡度限制平滑算法,曲率限制平滑算法对垂直航迹进行法向加速度和曲率的约束求得适合飞行器机动性能的飞行的路线。Potential field theory is improved which enable it to avoid not only fire threats but also terrain threats,and plan practical three-dimensional track.Analog terrain elevation data matrix is overlapping on the threat of electric field according to certain weight,so that the threat field not only can reflect radar threats,fire threats and the terrain threats.Through the limiting the search field from start point to destination point which reduced the complexity of the calculation to ensure that the final flight path＇s convergence in the target points.At the same time,on the basis of the above route planning,flight line is found which is suitable for aircraft bound mobility with gradient smoothing restrictions algorithm and curvature limit smoothing algorithm to confine vertical acceleration and curvature of the track.

关 键 词：电势理论 综合威胁场 三维航迹规划 威胁回避 高程矩阵 

分 类 号：V57[航空宇航科学与技术—航空宇航推进理论与工程]