基于Matlab的三维动态弹道仿真研究  

Simulation of Three-Dimensional Dynamic Trajectory of Missile Based on Matlab

作　　者：赵蕴杰[1] 曹迎春[1] 张庆斌[1] 柯海波[1] 

机构地区：[1]华中科技大学物理系,湖北武汉430074

出　　处：《计算机仿真》2007年第6期57-61,共5页Computer Simulation

摘　　要：导弹仿真研究是设计和改进导弹性能的一种重要手段。鉴于目前大多数文献都只给出了目标在二维平面内作平直飞行的理想追击情况,缺乏实用性,采用比例导引法,把三维追击轨道分解到两个二维平面上分别导引,并充分考虑到目标的机动性对弹道的影响,用MATLAB软件编写程序模拟出导弹实际追击的三维变轨弹道,绘制出分运动和合运动中各参数的变化曲线。最后比较了不同的追击速度和不同的导引系数k对弹道特性的影响,考虑到导弹实际飞行时受需用法向过载的制约,导出了导引系数k应满足的普遍公式,提出了对实战具有一定参考价值的建议。Trajectory simulation is an important tool for improving the accuracy of missile. Up to now, most previous works have simulated only the ideal two - dimensional trajectory and the results are not practical. This paper tries to simulate the trajectory curve of the missile in three - dimension by decomposing it into two two - dimensional planes and guiding the missile in the two planes respectively with proportional guidance method. Considering the influence of target＇s maneuverability on the trajectory, the curves of decomposed motion and composed motion are plotted and they show how the moving parameters of the missile and target change. The influences of different missile velocities and guidance constants on the trajectory are compared and a general relationship between the guidance constant and normal over - loading is derived, which may be advisory in practice. The simulations are realized on MATLAB.

关 键 词：比例导引 导弹弹道 弹道分解 变轨 危险距离 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]