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首页> 外文会议>International Association of Institutes of Navigation 15th World Congress 2015 >High latitude ionospheric disturbances: Characterization and effects on GNSS precise point positioning
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High latitude ionospheric disturbances: Characterization and effects on GNSS precise point positioning

机译：高纬度电离层干扰：表征及其对GNSS精确点定位的影响

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摘要

High latitude ionospheric irregularities of various scale sizes, which are mostly driven by the coupling processes between the solar wind and Earth's magnetic field, frequently result in phase scintillations over auroral oval and polar cap regions. Strong phase scintillations may cause a GNSS receiver to lose track of some satellites in view. Furthermore, rapid fluctuations in the ionospheric electron content may interfere with cycle slip detection and repair algorithms. These can result in degraded GNSS positioning accuracy. Similar to moving receivers, precise epoch solutions for static stations are also crucial for reliable interpretation of position estimates in applications such as earthquake monitoring. Depending on the scale size of the ionospheric irregularities causing phase scintillations, multi constellation GNSS processing can be effective to overcome decreased number of locked satellites. This is also relevant in high latitude regions with the lack of high elevation angle GPS satellites.
机译：各种尺度大小的高纬度电离层不规则性，通常是由太阳风和地球磁场之间的耦合过程驱动的，经常导致极光椭圆形和极帽区域的相位闪烁。强相位闪烁可能会导致GNSS接收器失去对某些卫星的跟踪。此外，电离层电子含量的快速波动可能会干扰周跳检测和修复算法。这会导致GNSS定位精度降低。与移动接收器类似，静态站的精确历元解决方案对于可靠解释诸如地震监测等应用中的位置估计也至关重要。根据引起相位闪烁的电离层不规则性的尺度大小，多星座GNSS处理可以有效地克服锁定卫星数量的减少。这在缺少高仰角GPS卫星的高纬度地区也很重要。

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