| 多遮挡环境下BDS/GPS组合动态差分处理算法及性能分析 |
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| 引用本文： | 王云鹏,石波,王胜利,刘猛奎,张倩,高.多遮挡环境下BDS/GPS组合动态差分处理算法及性能分析[J].大地测量与地球动力学,2018,38(3):276-281. |
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| 作者姓名： | 王云鹏 石波 王胜利 刘猛奎 张倩 高 |
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| 作者单位： | 山东科技大学测绘科学与工程学院;山东科技大学海洋工程研究院; |
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| 摘 要： | 研究BDS/GPS组合载波相位动态差分定位算法，讨论加入BDS后对模糊度固定的影响，针对部分区域有较严重信号遮挡的实测动态数据，分别进行单GPS和BDS/GPS组合解算。结果表明，相比单GPS，加入BDS后增加了共视卫星数目，改善了卫星几何结构，模糊度解算成功率和可靠性得到明显提高。多遮挡环境下测试数据显示，BDS/GPS组合的定位精度远高于单GPS，东向和北向精度优于8 mm、天向为16 mm，而单GPS东向仅为3 cm、北向和天向约8 cm。
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| 关 键 词： | GPS BDS/GPS组合 动态差分定位 定位精度 可见性 |
Analysis of BDS/GPS Integrated Kinematic Difference Positioning Algorithm in Multi-Occlusion Environment |
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| WANG Yunpeng,SHI Bo,WANG Shengli,LIU Mengkui,ZHANG Qian,GAO Yan.Analysis of BDS/GPS Integrated Kinematic Difference Positioning Algorithm in Multi-Occlusion Environment[J].Journal of Geodesy and Geodynamics,2018,38(3):276-281. |
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| Authors: | WANG Yunpeng SHI Bo WANG Shengli LIU Mengkui ZHANG Qian GAO Yan |
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| Abstract: | The integrated BDS/GPS kinematic differential positioning algorithm is studied, and we analyze the benefit of the BDS signals on the ambiguity resolution. Experiments are conducted based on the kinematic measurements collected from the regions with serious signal occlusion. Test results show that BDS/GPS integration increases the number of the visible satellites, strengthens of the geometric structure and improves the success rate and reliability of ambiguity resolution. In addition, the positioning accuracy is 8 mm with the GPS/BDS integration in the horizontal direction, and 16 mm in the vertical direction. For GPS alone, the positioning accuracy is 3 cm and 8 cm, respectively. |
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