多星座GNSS卫星轨道模型简化方法研究

发布时间：2018-04-29 01:09

本文选题：全球导航卫星系统(GNSS) + 卫星轨道模型　；参考：《北京理工大学学报》2014年08期

【摘要】：为提高多星座GNSS卫星轨道模型的可视化效率,从卫星椭圆轨道的近似,统一同一星座卫星轨道半长轴长度,基于K-means算法对升交点赤经数据进行聚类划分与重新赋值这3个方面对模型进行了简化,并进行了仿真计算.仿真结果表明,该方法的采用显著减少了需要显示的轨道数量,减少了完成模型渲染所需的时间,提高了每秒显示帧数.多星座GNSS卫星轨道模型的可视化效率得到明显提高.
[Abstract]:In order to improve the visualization efficiency of the multi-constellation GNSS satellite orbit model, from the approximation of the satellite elliptical orbit, the half-axis length of the satellite orbit of the same constellation is unified. Based on the K-means algorithm, the model is simplified and simulated in three aspects: clustering, dividing and revaluing the red meridian data of ascending intersection point. Simulation results show that the proposed method can significantly reduce the number of tracks needed to be displayed, reduce the time required to complete model rendering, and increase the number of frames per second. The visualization efficiency of multi-constellation GNSS satellite orbit model is improved obviously.
【作者单位】：北京理工大学宇航学院飞行器动力学与控制教育部重点实验室;
【基金】：国家自然科学基金资助项目(61173077) 国家“八六三”计划项目(2011AA120505)
【分类号】：TN96.1

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