基于Cesium的空间目标观测三维可视化平台

3D Visualization Platform for Space Targets Observation Based on Cesium

为满足测站对空间目标的跟踪测量需求,针对现有的空间目标观测软件在三维可视化、跨平台能力和操作易用性等方面的不足,设计开发了基于Cesium的空间目标观测三维可视化平台.介绍了软件开发框架,利用两行轨道根数(TLE)和最新的简化常规摄动模型4(SGP4)进行轨道预报,结合空间坐标系转换,实现了空间目标的轨道计算、实时位置动态显示和测站可见性分析的平台功能,并通过卫星工具包(STK)对平台计算结果进行了验证.应用结果表明,该可视化软件操作使用方便,具有良好的跨平台性能,计算结果满足精度要求,为软件设计开发的可视化与实用性相结合提供了有益探索.

A Cesium-based three-dimensional(3D)visualization platform for space target observation is designed and developed to overcome the shortcomings of existing space target observation software in 3D visualization,cross-platform capability,and ease of operation and ultimately to meet the needs of stations in space target tracking and measurement.The software development framework is outlined,and orbit prediction is performed by leveraging two-line elements(TLE)and the latest simplified general perturbation model 4(SGP4).Spatial coordinate transformation is conducted to achieve platform functions of orbit calculation of space targets,real-time position dynamic display,and station visibility analysis,and the prediction results are validated through the satellite tool kit(STK).The application results show that the proposed visualization software,with easy operation,favorable cross-platform performance,and calculation results that meet the accuracy requirements,is a useful exploration of combining the visualization and practicability of software design and development.