Large-scale ionospheric disturbances during the April 2002 storms
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ionospheric disturbances magnetic and ionospheric ↗
Engineering topics
Boulat, B.
Publications and source records attributed to Boulat, B..
Sudden ionospheric delay decorrelation and its impact on WAAS
In the absence of selective availability, the ionosphere represents the largest source of positioning error for single-frequency users of the GPS. In differential GPS systems such as the Wide Angle Augmentation System, vertical ionospheric delays are modeled at regularly-spaced intervals in latitude and longitude. The broadcast bound on the error at each of these points is designated the grid ionospheric vertical erorr (GIVE). A critical integrity requirement of WAAS is that the broadcast GIVE bounds residual error with a very high degree of confidence.
ionosphere WAAS GPS↗
Ionospheric scintillation measured using GPS receivers during the solar maximum in 2000
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ionospheric scintillation GPS solar maximum↗