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首页> 外文期刊>Survey Review >DECIMETRE LEVEL MAPPING USING DIFFERENTIAL PHASE MEASUREMENTS OF GPS HANDHELD RECEIVERS
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DECIMETRE LEVEL MAPPING USING DIFFERENTIAL PHASE MEASUREMENTS OF GPS HANDHELD RECEIVERS

机译:使用GPS手持接收器的差分相位测量来进行分米级映射

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摘要

An economic positioning system is presented in this study for decimetre level accuracy mapping with emphasis on producing base maps for GIS applications. The system downloads carrier-phase data of GPS handheld receivers online, simultaneously registers the point code and description, and processes the data in a differential post-mission mode. The architecture of the system is presented. Characteristics of the proposed system are discussed. Main issues in system utilization are investigated, including: treatment of system errors, phase measurements ambiguity resolution, the impact of receiver dynamics on system performance, and the required occupation time per point. Some guidelines for system operation are proposed. Several tests in the static and kinematic modes were carried out to test the performance of the proposed system. The system gave very promising results. Test results show that for a probability of 95%, an accuracy of less than 16 cm can be achieved after correctly resolving the ambiguities. With a cost that is a fraction of that of the currently used geodetic-grade GPS receivers, the system represents a cheap alternative for a wide range of GIS applications.
机译:在这项研究中提出了一种经济的定位系统,用于分米级精度制图,重点是为GIS应用程序生成基础地图。该系统在线下载GPS手持接收器的载波相位数据,同时注册点码和描述,并以差分后任务模式处理数据。介绍了系统的体系结构。讨论了所提出系统的特征。调查了系统利用率中的主要问题,包括:系统错误的处理,相位测量的歧义度解决方案,接收器动力学对系统性能的影响以及每点所需的占用时间。提出了一些系统操作准则。在静态和运动学模式下进行了几次测试,以测试所提出系统的性能。该系统给出了非常有希望的结果。测试结果表明,在正确解决歧义之后,对于95%的概率,可以实现小于16 cm的精度。该系统的成本仅为目前使用的大地测量级GPS接收器的一小部分,因此它是各种GIS应用程序的廉价替代品。

著录项

  • 来源
    《Survey Review》 |2005年第295期|p.47-57|共11页
  • 作者

    Ahmed El-Mowafy;

  • 作者单位

    Civil and Environmental Engineering Department College of Engineering The United Arab Emirates University;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 天文学、地球科学;
  • 关键词

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