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Development of the dual-frequency dual-constellation airborne multipath models

机译:双频双星座机载多径模型的开发

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摘要

This paper presents a methodology to build multipath models for aviation use of new Global Positioning System (GPS) and Galileo signals. The estimation of airframe multipath errors makes use of carrier phase measurements; thus, it is affected by the integer ambiguities. A new method for removing the ambiguities from the multipath estimation is presented. The method is suitable for measurements from flight data and is able to exclude measurements highly affected by multipath from the estimation by using a derived standard deviation based on the receiver thermal noise only. Next, an overview of the error sources relevant for the multipath estimation is given, and a first concept to separate the receiver antenna errors from the multipath errors is proposed. Finally, the paper discusses overbounding of the observed multipath errors to safely bound the tail risks and the inflation needed to account for uncertainty due to limited amounts of data.
机译:本文提出了一种方法,用于建立新的全球定位系统(GPS)和伽利略信号在航空领域的多径模型。机体多径误差的估计利用了载波相位测量。因此,它受到整数模糊度的影响。提出了一种从多径估计中消除歧义的新方法。该方法适用于从飞行数据中进行测量,并且能够仅通过使用基于接收器热噪声的导出标准偏差从估计中排除受多径影响较大的测量。接下来,给出与多径估计有关的误差源的概述,并提出将接收机天线误差与多径误差分开的第一个概念。最后,本文讨论了所观察到的多径误差的越界,以安全地限制尾部风险和通货膨胀,以解决由于数据量有限而导致的不确定性。

著录项

  • 来源
    《Navigation》 |2020年第1期|61-81|共21页
  • 作者

  • 作者单位

    German Aerosp Ctr DLR Inst Commun & Nav D-82234 Wessling Germany|Rhein Westfal TH Aachen D-52074 Aachen Germany;

    German Aerosp Ctr DLR Inst Commun & Nav D-82234 Wessling Germany;

  • 收录信息 美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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