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arXiv physics/0210048physics.geo-ph
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用全球GPS网数据测试电离层无线电信道

Testing of the transionospheric radiochannel using data from the global GPS network

E. L. Afraimovich, V. A. Karachenschev

摘要:

利用全球定位系统导航系统双频接收器国际地面网络,提供了一种手段,可对地球不均匀和不稳定电离层造成的星载无线电工程系统信号相位波动进行全球、连续和完全计算机化的监测。我们发现,在大磁暴期间,电离层无线电信号的距离、频率多普勒频移和到达角的测量误差至少超过磁力宁静天的测量误差一个数量级。这可能是目前卫星无线电工程导航、通信和雷达系统以及超长基线无线电干涉测量系统性能下降的原因。

英文摘要:

Using the international ground-based network of two-frequency receivers of the GPS navigation system provides a means of carrying out a global, continuous and fully-computerized monitoring of phase fluctuations of signals from satellite-borne radio engineering systems caused by the Earth's inhomogeneous and nonstationary ionosphere. We found that during major geomagnetic storms, the errors of determination of the range, frequency Doppler shift and angles of arrival of transionospheric radio signals exceeds the one for magnetically quiet days by one order of magnitude as a minimum. This can be the cause of performance degradation of current satellite radio engineering navigation, communication and radar systems as well as of superlong-baseline radio interferometry systems.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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