最小GDOP组合Walker星座构型

薛树强, 杨元喜

薛树强, 杨元喜. 最小GDOP组合Walker星座构型[J]. 武汉大学学报 ( 信息科学版), 2016, 41(3): 380-387. DOI: 10.13203/j.whugis20130485
引用本文: 薛树强, 杨元喜. 最小GDOP组合Walker星座构型[J]. 武汉大学学报 ( 信息科学版), 2016, 41(3): 380-387. DOI: 10.13203/j.whugis20130485
XUE Shuqiang, YANG Yuanxi. Combined Walker Configurations with Minimal GDOP[J]. Geomatics and Information Science of Wuhan University, 2016, 41(3): 380-387. DOI: 10.13203/j.whugis20130485
Citation: XUE Shuqiang, YANG Yuanxi. Combined Walker Configurations with Minimal GDOP[J]. Geomatics and Information Science of Wuhan University, 2016, 41(3): 380-387. DOI: 10.13203/j.whugis20130485

最小GDOP组合Walker星座构型

基金项目: 国家自然科学基金(41020144004,41104018, 41474011);国家科技支撑计划(2012BAB16B01);国家863计划(2009AA121405,2013AA122501); 北斗全球连续监测评估(GFZX0301040309);福建省海岛与海岸带管理技术研究实验室开放研究基金(201403)。
详细信息
    作者简介:

    薛树强,博士生,研究方向为误差理论与测量平差。xuesq@casm.ac.cn

  • 中图分类号: P228

Combined Walker Configurations with Minimal GDOP

Funds: The National Science Foundation of China, Nos. 41020144004, 41104018, 41474011; the National Key Technology Support Program, No.2012BAB16B01; the National High-tech R&D Program (863 Program) of China, Nos. 2009AA121405,2013AA122501; IGMAS, No. GFZX0301040308-06; the Fujian Province Key Laboratory of Coast and Island Management Technology Study, No. 201403.
  • 摘要: 几何精度衰减因子(GDOP)是衡量定位构型优劣的重要指标,探讨最小GDOP定位构型的几何结构在单GNSS星座设计和多系统组合优化方面具有现实意义。在GNSS普遍采用的Walker构型的基础上,导出了最小GDOP组合Walker构型所应满足的条件方程。讨论了单一和组合Walker构型的GDOP地表覆盖性质。最后,通过仿真分析验证了主要结论。
    Abstract: The GDOP (geometric dilutions of precision) is a key criterion to measure the graphic intensity of single-point-positioning configurations. Revealing the geometry of configurations with minimal GDOP has practical significance in the optimization design of single GNSS satellite constellation or multi-constellations. From the common used Walker configuration, we deduce a conditional equation to the combined Walker configurations to minimize the GDOP. The GDOP distribution on the surface of the Earth is discussed in terms of the conditional equation for minimizing the GDOP. Simulations were performed to verify the main results.
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  • 收稿日期:  2014-10-10
  • 发布日期:  2016-03-04

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