• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Technical Meeting of the Satellite Division of The Institute of Navigation >Ionospheric Effects on High Gain Antenna GNSS Measurements - TEC Estimation and Correction
【24h】

Ionospheric Effects on High Gain Antenna GNSS Measurements - TEC Estimation and Correction

机译：对高增益天线GNSS测量的电离层效应 - TEC估计和校正

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The ionospheric delay of global navigation satellite systems (GNSS) signals typically is compensated by adding a single correction value to the pseudorange measurement of a GNSS receiver. Yet, this neglects the dispersive nature of the ionosphere. In this context we analyze the ionospheric signal distortion beyond a constant delay. These effects become increasingly significant with the signal bandwidth and hence more important for new broadband navigation signals. Using measurements of the Galileo E5 signal, captured with a high gain antenna, we verify that the expected influence can indeed be observed and compensated. A new method to estimate the total electron content (TEC) from a single frequency high gain antenna measurement of a broadband GNSS signal is proposed and described in detail. The received signal is de facto unaffected by multi-path and interference because of the narrow aperture angle of the used antenna which should reduce the error source of the result in general. We would like to point out that such measurements are independent of code correlation, like in standard receiver applications. It is therefore also usable without knowledge of the signal coding. Results of the TEC estimation process are shown and discussed comparing to common TEC products like TEC maps and dual frequency receiver estimates.
机译：全局导航卫星系统（GNSS）信号的电离层延迟通常通过向GNSS接收器的伪距测量添加单个校正值来补偿来补偿。然而，这忽略了电离层的分散性。在这种情况下，我们分析超出恒定延迟的电离层信号失真。这些效果与信号带宽变得越来越重要，因此对于新的宽带导航信号更重要。使用用高增益天线捕获的伽利略E5信号的测量，我们验证了确实可以观察到预期的影响和补偿。提出了一种新方法来估计来自宽带GNSS信号的单个频率高增益天线测量的宽带GNSS信号的总电子含量（TEC）。由于使用的天线的窄光孔角，所接收的信号是不受多路径和干扰的影响，这应该减少结果的误差源。我们想指出这种测量与代码相关性独立于代码相关性，例如在标准接收器应用中。因此，在没有知识的信号编码的情况下也可以使用。与TEC地图和双频接收器估计等常见的TEC产品相比，显示并讨论了TEC估计过程的结果。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号