基于VRML和目标航迹的视景仿真方法

Visual Simulation Method Based on VRML and Target Track

基于VRML技术建立了虚拟目标和场景的可视化模型;采用三次样条插值方法对输入航迹进行了平滑和可飞性检验,并计算出了相应的姿态数据;利用虚拟现实工具箱提供的Matlab接口驱动虚拟目标进行六自由度运动,同时控制模拟CCD进行实时跟踪,完成了对飞行过程的视景仿真。实验表明,该方法不仅得到了实用的航迹和姿态数据,而且直观生动的描述了飞行过程,为相关理论研究奠定了良好的基础。

Visual model of virtual target and scene was established based on VRML technology;cubic spline interpolation method was adopted to smooth input track and check its trajectory,and relevant attitude data was calculated as well;Matlab interface from VR toolbox was used to drive the target for 6-DOF motion,and simultaneously control stimulant CCD to track the target in real-time,so visual simulation of the flight was completed.The test shows that the proposed method can not only obtain practical track and attitude data,but also describe the flight vividly,and it is a good base for relevant theory study.