Validation of the - Model of the Power Spectral Density of GPS Ionospheric Amplitude Scintillation

Figure 1

(a) The location of the measurement site SJC overlaid on the global map of the predicted ionospheric maximum electron density (NmF2) at 20:00 LT on December 31, 2001. This map was generated using the international reference ionosphere (IRI) model [26]. (b) Skyplot of satellite PRN 18 on December 15, 2001. (c) Ratio (dBHz) between the received power and the noise power density corresponding to the link characterized by panel (b). (d) Respective scintillation index for consecutive one-minute records of (3000 samples).

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