Abstract

The influence of geomagnetic activity on slips of navigation signals of the global positioning system (GPS), as well as an increase in the amplitude of jumps in the total electron content at high latitudes, has been studied in detail. It is shown that the navigation signal of the L₂ frequency is subject to more frequent malfunctions than the L₁ frequencies, both in calm conditions and during geomagnetic disturbances. The probability of total electron content jumps is higher than the probability of phase slips at the L₁ and L₂ frequencies. The maximum disruptions and the frequency of large jumps in the total electron content are observed during the recovery phase of the geomagnetic substorm. The data from the whole-sky camera, magnetometers, and the interplanetary magnetic field used in this study make it possible to monitor the time evolution of a substorm and to study it in detail. The indicated features of the signal behavior are apparently caused by the precipitation of auroral particles, which usually occur during geomagnetic substorms in high latitude regions.

中文翻译：

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地磁亚暴期间电离层对GPS导航信号参数的影响

摘要

已经详细研究了地磁活动对全球定位系统（GPS）的导航信号滑移的影响，以及在高纬度地区总电子含量的跃变幅度的增加。结果表明，在平静条件下和地磁扰动期间，L ₂频率的导航信号比L ₁频率遭受更多的故障。电子总含量跃迁的可能性高于L ₁和L ₂处的相移的可能性频率。在地磁亚暴的恢复阶段，观察到了最大的破坏和总电子含量大跳变的频率。来自这项研究中使用的全天候相机，磁力计和行星际磁场的数据，使监视亚暴的时间演变并进行详细研究成为可能。信号行为的指示特征显然是由极光颗粒的沉淀引起的，这通常发生在高纬度地区的地磁亚暴期间。