一种基于理论弹道的安全管道生成算法

Missile Flight Safety Channel Generation Algorithm Based on Theoretical Trajectory

为了对靶场试验中飞行导弹进行安全控制,提出一种基于理论弹道的安全管道生成算法。首先,将导弹的理论弹道从地球坐标系转换为三维直角坐标系,并利用向量叉乘的原理求出理论弹道所在平面2个互相垂直的单位法向量;然后,结合理论安全管道的上、下、左、右4个边界值求出目标安全管道数据;最后,将该算法应用于某型号导弹飞行试验系统中,使用三维地理信息引擎开发库osg和osgEarth模拟仿真安全管道。仿真结果表明:该算法生成的安全管道精度高,误差小于0.35%,且实现简单,对靶场飞行导弹的安全控制研究具有重要意义。

In order to control the flying missiles in the range tests,a generation algorithm of missile flight safety channel based on theoretical trajectory is proposed. Firstly,the theoretical trajectory of the missile is converted from the earth coordinates into the space coordinates,and the vector fork is adopted to obtain two vertical unit vectors of the theoretical trajectory plane. Secondly,based on four boundary values of the theoretical safety channel,the safety channel can be obtained. Finally,the novel algorithm is applied to a missile flight test system,and the safety channel is simulated on the three-dimensional developed platform,osg and osg Earth. The simulation results show that the algorithm has high precision,low error which less than 0. 35%,and the implementation is simple,which is of great significance to the study of the safety control in the range test.