为满足科研与教学中对导引规律可视化及交互操作的需求,以追踪法为例,利用Matlab/Simulink软件建立导引规律的动态仿真模型。采用虚拟现实建模语言VRML建立虚拟场景,运用虚拟现实工具箱中的操纵杆模块手动操控被追踪目标,实现了对三维交互式导引规律的可视化仿真。通过操纵杆调节目标法向加速度,理想弹道随之改变,真正体现了人机交互式操作。演示过程中可从不同角度观察导弹的飞行状态,对虚拟现实的操纵更加逼真。

To meet the need of guidance law visualization in research and teaching, take the three-dimensional pure pursuit guidance law as an example, the three-imensional simulation model was established based on Matlab/Simulink. The virtual-reality modeling language(VRML) was used for establishing the three-dimensional visual scene and joystick was used for controlling target motion, an interactive three-dimensional pure pursuit guidance law's Simulink model was built. The missile's trajectory also changed with motion of the target. The whole flight process from different angle was demonstrated, and the guidance law can be completed much better.