测绘通报 ›› 2022, Vol. 0 ›› Issue (1): 56-60.doi: 10.13474/j.cnki.11-2246.2022.0010

• 学术研究 • 上一篇    下一篇

亚太区域北斗三号对北斗二号精密单点定位的增强效果分析

马会林1, 吴文坛2, 吴秀丽3   

  1. 1. 河北省第二测绘院, 河北 石家庄 050000;
    2. 河北省自然资源档案馆, 河北 石家庄 050000;
    3. 河北省第三测绘院, 河北 石家庄 050000
  • 收稿日期:2021-07-06 发布日期:2022-02-22
  • 作者简介:马会林(1979-),男,高级工程师,主要从事大地测量、工程测绘、不动产测量、地理信息系统工程等测绘高新技术的研究与应用开发。E-mail:11119076@qq.com
  • 基金资助:
    国家重点研发计划(2016YFB0502105;2016YFB0502101)

Performance analysis of BDS-2 precise point positioning augmented by BDS-3 within the Asia-Pacific region

MA Huilin1, WU Wentan2, WU Xiuli3   

  1. 1. Second Surveying and Mapping Institute of Hebei Province, Shijiazhuang 050000, China;
    2. Hebei Province Natural Resources Archives, Shijiazhuang 050000, China;
    3. Third Surveying and Mapping Institute of Hebei Province, Shijiazhuang 050000, China
  • Received:2021-07-06 Published:2022-02-22

摘要: 北斗二号卫星导航系统主要由GEO和IGSO星座卫星构成,其整体星座的几何结构变化缓慢,导致应用于精密单点定位(PPP)时需要较长收敛时间。而北斗三号卫星导航系统的建成将有利于缓解上述问题,获得更优的定位效果。为了探究北斗三号对北斗二号PPP的增强效果,本文选取10个位于亚太区域内的iGMAS测站3 d的观测数据,首先分析3家IGS分析中心对北斗三号卫星精密产品的支持情况;然后分别对静态和模拟动态两种模式的定位性能进行展开分析。结果表明:①亚太区域内北斗三号卫星数量达到9颗。②加入北斗三号卫星后,静态PPP的收敛时间缩短了40%,收敛后的精度提高了46.5%;模拟动态PPP的收敛时间缩短了42.8%,收敛后的精度提高了45.7%。

关键词: 北斗三号, 北斗二号, 亚太区域, 精密单点定位, 定位性能

Abstract: BDS-2 satellite navigation system is mainly composed of GEO and IGSO constellation satellites. The geometric structure of the whole constellation changes slowly, which leads to a long convergence time when it is applied to precise point positioning(PPP). The construction of BDS-3 satellite navigation system will help to alleviate the above problems and obtain better positioning effect. In order to explore the enhancement effect of BDS-3 on BDS-2 PPP, this paper selects the 3 d observation data of 10 iGMAS stations located in the Asia-Pacific region, and first analyzes the support of three IGS analysis centers for BDS-3 precise products. Then, the positioning performance of static mode and simulated kinematic mode is analyzed. The results show that:①There are 9 BDS-3 satellites in the Asia-Pacific region can be observed. ②After applying BDS-3, the convergence time of static PPP is reduced by 40%, and the converged accuracy is improved by 46.5%. The convergence time of simulated dynamic PPP is reduced by 42.8%, and the accuracy is improved by 45.7%.

Key words: BDS-3, BDS-2, the Asia-Pacific region, precise point positioning, positioning performance

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