| 低成本GNSS模块RTK性能比较分析 |
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| 引用本文： | 刘星,李安然,石俊炯,李春花.低成本GNSS模块RTK性能比较分析[J].测绘科学,2021,46(3):27-31,79. |
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| 作者姓名： | 刘星 李安然 石俊炯 李春花 |
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| 作者单位： | 重庆大学土木工程学院,重庆400045;重庆大学土木工程学院,重庆400045;中国科学院重庆绿色智能研究所北斗导航工程中心,重庆400045 |
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| 基金项目： | 重庆市科学技术局技术创新与应用发展专项面上项目(cstc2019jscx-msxmX0051);天津市科技计划项目(18YFYSZC00120);四川省科技计划重点研发项目(2019YFG0025);重庆市科学技术局科研院所绩效激励引导专项项目(cstc2018jxjl120003);重庆市科学技术局技术预见与制度创新项目(cstc2019jsyj-yzysbAX0011);重庆市科学技术局技术创新与应用示范专项重点示范项目(cstc2018jszx-cyzdX0068)。 |
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| 摘 要： | 针对低成本GNSS模块及天线类型直接影响RTK性能的问题,该文选取了具有代表性的3种GNSS定位模块华大HD9310、UBLOX NEO-M8T、UBLOX ZED-F9P,以及测地型天线U35和螺旋天线BT-3070两种不同类型的天线。采集GNSS天线和模块不同组合的原始观测数据,深入分析了不同组合的原始GNSS数据的信噪比、模糊度解算初始化时间、伪距与载波相位的双差残差以及定位精度。结果表明:U35天线性能优于BT-3070天线;ZED-F9P模块性能优于NEO-M8T模块和HD9310模块。实验结果可为无人设备、工程测量等领域选取合适的RTK组合提供参考。
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| 关 键 词： | 低成本GNSS模块 天线 信噪比 双差残差 模糊度 定位精度 |
RTK performance comparative analysis of low-cost GNSS receivers |
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| LIU Xing,LI Anran,SHI Junjiong,LI Chunhua.RTK performance comparative analysis of low-cost GNSS receivers[J].Science of Surveying and Mapping,2021,46(3):27-31,79. |
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| Authors: | LIU Xing LI Anran SHI Junjiong LI Chunhua |
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| Institution: | (College of Civil Engineering,Chongqing University,Chongqing 400045,China;Beidou Navigation Engineering Center,Chongqing Institute of Green and Intelligent Technology,Chinese Academy of Sciences,Chongqing 400045,China) |
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| Abstract: | Regarding to the direct affect of low-cost GNSS modules and antenna types on RTK performance,this article selected three representative GNSS positioning modules Huada HD9310,UBLOX NEO-M8 T,UBLOX ZED-F9 P,and two different types of antenna--geodetic antenna U35 and spiral antenna BT-3070.Through the collection of the original observation data from different combinations of GNSS antennas and modules,this article conducted a deep analysis of the signal-noise ratio(SNR),ambiguity resolution on the initialization time,the double-differenced residuals and positioning accuracy of pseudo-range and carrier phase.The results are as follows:as for the performance,the U35 antenna is better than the BT-3070 antenna,and the ZED-F9 P module is better than NEO-M8 T module and HD9310 module.The experimental results in this article can provide reference for selecting suitable RTK equipment for unmanned equipment and engineering surveying,etc. |
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| Keywords: | low-cost GNSS modules antenna SNR double-difference residuals ambiguity positioning accuracy |
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