| BDS-3与GPS及其系统组合定位精度分析 |
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| 引用本文： | 孙洪瑞,葛金龙,钮建定,吴卫平.BDS-3与GPS及其系统组合定位精度分析[J].港工技术,2022,59(1):117-120. |
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| 作者姓名： | 孙洪瑞 葛金龙 钮建定 吴卫平 |
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| 作者单位： | 中交第三航务工程勘察设计院有限公司,上海,200032 |
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| 摘 要： | 北斗三号卫星导航系统(BDS-3)已于2020年6月底全面建成,BDS-3可在全球范围内提供导航定位服务.为评估完整的BDS-3系统精密单点定位精度,选择6个MGEX站点的观测数据,使用开源软件MG-APP分别对BDS3系统、GPS系统以及组合系统的精密单点定位(PPP)精度进行分析.结果表明BDS-3系统的定位精度与...
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| 关 键 词： | 北斗三号卫星系统 BDS-3 精密单点定位 PPP 精度分析 |
Positioning Precision Analysis of BDS-3, GPS and Combined System |
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| Sun Hongrui,Ge Jinlong,Niu Jianding,Wu Weiping.Positioning Precision Analysis of BDS-3, GPS and Combined System[J].Port Engineering Technology,2022,59(1):117-120. |
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| Authors: | Sun Hongrui Ge Jinlong Niu Jianding Wu Weiping |
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| Institution: | (CCCC Third Harbor Consultants Co.,Ltd.,Shanghai 200032,China) |
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| Abstract: | Fully completed by the end of June 2020, Beidou-3 Satellite Navigation System(BDS-3) is able to provide global navigation and positioning services. To assess single point positioning precision of complete system BDS-3, Point Positioning Precisions(PPP) of BDS3, GPS, and combined system were analyzed respectively by using software MG-APP based on the observed data from six MGEX stations. The results show that the positioning precision of system BDS-3 is at the same level as that of GPS, and the outer compliance accuracies(single day solution) in Direction X, Y and Z are within the range of 3.5 cm. The number of satellites observed through BDS-3 is more than that by GPS, but the former one has slightly lower point positioning precision and a little longer convergence time in comparison with GPS. Combination of BDS-3 and GPS can improve the positioning accuracy, convergence speed(utilization efficiency) and reliability. |
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| Keywords: | Beidou-3 satellite system BDS-3 precision point positioning PPP accuracy analysis |
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