摘要： 为研究非标准气象因素对导弹运动特性的影响,将大气运动基本方程组同经典弹道模型相结合,建立非标准气象条件下的高抛弹道模型。同时给出大气运动基本方程组易于编程计算的数值解法,采用变步长的四阶龙格库塔数值积分算法,联立大气运动基本方程组求解空地导弹的动力学方程和运动学方程,得到非标准气象条件下导弹弹道的落点坐标(205 65.8,0,－1 389),结果证明了在不同气象条件下导弹的飞行轨迹不同。使用仿真软件STK、卫星工具包可视化三维建模模块实现了某空地导弹从发射至目标攻击阶段的视景仿真,获得了逼真的效果。

关键词: 视景仿真, 气象因素, 弹道模型, 空地导弹, 高抛弹道, 仿真软件

Abstract: To study the impact of the nonstandard meteorological factors on missile motion characteristics,combining with the basic equations of atmospheric motion and classical trajectory model,the model of the parabolatrajectory is established under the nonstandard weather condition.Besides,an easytoprogram numerical solution of the basic equations of atmospheric motion is presented,and with which the missile’s point coordinate(20 565.8,0,－1 389) under the nonstandard atmosphere is obtained by solving its kinetic equations and kinematics equations using numerical integral method of variablestep four orders RungeKutta.The result demonstrates that the missile’s flight trajectory changes under different meteorological conditions.The visual simulation of the airtoground missile flightattack by the threedimensional visualization modules of STK(Satellite Tool Kit) is realized,which exhibits good performance.

Key words: visual simulation, meteorological factor, trajectory model, airtoground missile, parabolatrajectory, simulation software

中图分类号: 

• TJ765.4