| 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 |
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| 引用本文： | 马会林,吴文坛,吴秀丽.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[J].测绘通报,2022,0(1):56-60. |
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| 作者姓名： | 马会林 吴文坛 吴秀丽 |
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| 作者单位： | 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 |
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| 基金项目： | 国家重点研发计划（2016YFB0502105；2016YFB0502101） |
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| 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%。
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| 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 |
| 收稿时间： | 2021-07-06 |
Performance analysis of BDS-2 precise point positioning augmented by BDS-3 within the Asia-Pacific region |
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| MA Huilin,WU Wentan,WU Xiuli.Performance analysis of BDS-2 precise point positioning augmented by BDS-3 within the Asia-Pacific region[J].Bulletin of Surveying and Mapping,2022,0(1):56-60. |
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| Authors: | MA Huilin WU Wentan WU Xiuli |
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| Institution: | 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 |
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| 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%. |
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| Keywords: | BDS-3 BDS-2 the Asia-Pacific region precise point positioning positioning performance |
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