张登奎,孙洪瑞.GPS PPK技术在鱼山海域测量中的应用及其精度分析[J].水运工程,2021,(5):162-166
GPS PPK技术在鱼山海域测量中的应用及其精度分析
Accuracy analysis and application of GPS PPK in Yushan marine survey
  
DOI:
中文关键词:  GPS PPK(载波相位动态后处理技术)  鱼山海域测量  精度分析
英文关键词:GPS PPK (post-processed kinematic)  Yushan marine survey  accuracy analysis
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作者单位
张登奎 中交第三航务工程勘察设计院有限公司上海200032 
孙洪瑞 中交第三航务工程勘察设计院有限公司上海200032 
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中文摘要:
      GPS RTK(载波相位差分定位技术)测量受卫星信号和RTK电台传输影响,流动站无法获得固定解。针对这一问题,研究GPS PPK(载波相位动态后处理技术)的工作原理、外业操作及数据处理方法。在鱼山海域测量中,采用已知点检核、RTK检查线与PPK主测线高程对比的方法对其测量精度进行统计分析。结果表明,在RTK应用受限时,PPK测量精度与RTK基本一致。联合应用PPK和RTK技术可以提高作业效率和数据可靠性,既节约了成本,又缩短了工期,在海洋测绘中值得推广。
英文摘要:
      GPS RTK(real-time kinematic ) survey is affected by the satellite signals and transmission of RTK radio stations,the mobile station cannot obtain the fixed solution. For solving this problem,the working principle,field operations,and data processing methods of GPS PPK (post-processed kinematic)are studied. In the survey of Yushan marine,the method of known point check and elevation comparison between the RTK inspection line and the PPK main survey line is used to statistically analyze its measurement accuracy. The results show that when the application of RTK is limited,the survey accuracy of PPK is consistent with that of RTK.The combined application of PPK and RTK can improve operational efficiency and data reliability,which not only saves the survey costs but also shortens the construction period,therefore PPK technology is worthy of promotion in the marine survey.
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