| 基于低成本单频u-blox接收机的GPS/BDS定向性能分析 |
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| 引用本文： | 李江卫,马立烨,吴仁攀,孙伟,吴多.基于低成本单频u-blox接收机的GPS/BDS定向性能分析[J].大地测量与地球动力学,2019,39(3):279-284. |
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| 作者姓名： | 李江卫 马立烨 吴仁攀 孙伟 吴多 |
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| 作者单位： | 武汉市测绘研究院,武汉市万松园路209号,430022;武汉大学测绘学院,武汉市珞喻路129号,430079 |
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| 基金项目： | 精密工程与工业测量国家测绘地理信息局重点实验室开放基金 |
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| 摘 要： | 针对高精度GNSS定向应用场景,通过实验对比对低成本单频u-blox接收机的数据质量和解算精度。结果表明,u-blox接收机GPS、BDS观测值的信噪比略低于测量型接收机;伪距精度分别为0.91 m、0.56 m,相位精度分别为1.35 cm、1.20 cm。在静态观测环境下,u-blox的定向精度可以达到航向0.2°/m和俯仰0.4°/m;动态环境下解算结果稍差,但也可以达到航向0.3°/m和俯仰0.6°/m,略低于高成本测量型接收机单频数据的实时动态定向精度。
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| 关 键 词： | 低成本u-blox接收机 定向 抗差估计 基线长约束 |
Performance Analysis of GPS/BDS Attitude Determination for Low-Cost Single-Frequency u-blox Receivers |
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| LI Jiangwei,MA Liye,WU Renpan,SUN Wei,WU Duo.Performance Analysis of GPS/BDS Attitude Determination for Low-Cost Single-Frequency u-blox Receivers[J].Journal of Geodesy and Geodynamics,2019,39(3):279-284. |
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| Authors: | LI Jiangwei MA Liye WU Renpan SUN Wei WU Duo |
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| Institution: | (Wuhan Institute of Surveying and Mapping,209 Wansongyuan Road,Wuhan 430022,China;School of Geodesy and Geomatics,Wuhan University,129 Luoyu Road,Wuhan 430079,China) |
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| Abstract: | This paper analyzes the observation quality of the low-cost single-frequency u-blox receiver and evaluates its attitude determination precision by experimental comparison. The results, based on real data, show that the SNR of GPS, BDS observations collected by u-blox is slightly lower than a surveying receiver; pseudorange accuracies of GPS, BDS observations are 0.91 m, 0.56 m, phase accuracies are 1.13 cm, 1.20 cm, respectively. The orientation precision of the u-blox receiver can reach 0.2°/m and 0.4°/m of heading and pitch in a static environment, while in a dynamic environment it can reach 0.3°/m and 0.6°/m, which is slightly worse than that of the single-frequency resolution of high-cost surveying receiver. |
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| Keywords: | low-cost u-blox receiver attitude determination robust estimation baseline length constraint |
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