Ionospheric scintillation effect is one of the most difficult problems restricting the accurate and reliable service of Beidou /GNSS. The phase scintillation index reflects the intensity of carrier phase change when satellite navigation signals pass through the ionosphere. Different from the amplitude scintillation calculation method in the special ionospheric scintillation monitoring receiver, this product makes full use of the global/regional real-time GNSS high-frequency observation data, and on the basis of realizing real-time calculation of the phase scintillation index of the satellite line of sight direction at each reference station, A spatial meshing method for phase scintillation based on IDW was established to realize real-time and fine monitoring of ionospheric scintillation effect on a global scale.
Product Standard
| Specification | Description |
|---|---|
| Provider | Chinese Academy of Sciences(CAS) |
| Data Input | Global/regional real-time GNSS reference station data |
| Number of Stations | 400-500 Worldwide |
| System Frequency | BDS B1/B3, GPS L1/L2, GAL E1/E5 |
| Data Sampling Rate | 1HZ |
| Data Processing | ROTI exponential meshing method based on IDW |
| Coverage Area | -90°N–90°N, 180°W–180°E |
| Thin Layer Height | 450km |
| Spatial Resolution | 2.5° Lat × 5.0° Lon |
| Data Interval | 5 minutes |
| Data Format | Custom（IONEX-like） |