全球导航卫星系统地面监测站优化设计方法

发布时间：2018-07-02 21:18

本文选题：全球导航卫星系统 + 监测站布设　；参考：《测绘科学技术学报》2016年03期

【摘要】：地面监测站数量和分布直接影响全球卫星导航系统的星历精度,其优化布设是提高系统性能的前提,也是系统建设需要重点关注的环节。给出了评价监测站布设性能的综合指标,提出了一种用于监测站覆盖性能评估的模型,并通过对MEO卫星半长轴的长期变化和回归经度漂移的分析,验证了该模型用于评价全球导航系统监测站优化布设的合理性。最后,综合利用覆盖性能指标和精密定轨精度指标对全球监测站不同布局方案进行了分析比较,给出了监测站优化布设方案。
[Abstract]:The number and distribution of ground monitoring stations directly affect the ephemeris accuracy of the global satellite navigation system. The optimization of the system layout is the premise of improving the system performance and the key link of the system construction. This paper gives a comprehensive index to evaluate the performance of monitoring station layout, and puts forward a model for evaluating the coverage performance of monitoring station. Through the analysis of the long term variation of MEO satellite semi-long axis and the regression longitude drift of MEO satellite, The rationality of the model used to evaluate the optimal placement of GNSS monitoring stations is verified. Finally, comprehensive use of coverage performance index and precision orbit determination precision index to analyze and compare the different layout schemes of global monitoring stations, and give the optimal layout of monitoring stations.
【作者单位】：信息工程大学;地理信息工程国家重点实验室;西安测绘研究所;测绘信息技术总站;
【基金】：国家自然科学基金项目(41204020) 中国博士后科学基金项目(2013M540641)
【分类号】：P228.4

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