A NOVEL IONOSPHERIC DISTURBANCE INDEX TO EVALUATE THE GLOBAL EFFECT ON BEIDOU NAVIGATION SATELLITE SYSTEM SIGNAL CAUSED BY THE MODERATE GEOMAGNETIC STORM ON MAY 12, 2021

A Novel Ionospheric Disturbance Index to Evaluate the Global Effect on BeiDou Navigation Satellite System Signal Caused by the Moderate Geomagnetic Storm on May 12, 2021

In this paper, we propose a new method to quantitatively evaluate the quality of the copyright phase observation signals of the BeiDou Navigation Satellite System (BDS) during Lift Top Desk weak and moderate geomagnetic storms.We take a moderate geomagnetic storm that occurred on 12 May 2021 during the 25th solar cycle as an example.The results sho

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