Ionospheric scintillation effect is one of the most difficult problems restricting the accurate and reliable service of Beidou /GNSS. Amplitude scintillation index reflects the intensity of signal amplitude 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 regional real-time GNSS high-frequency observation data, and on the basis of realizing real-time calculation of the amplitude scintillation index of satellite sight direction at each reference station, A spatial meshing method of amplitude scintillation based on IDW was established to realize the regional real-time fine monitoring of ionospheric scintillation effect.
Product Standard
| Specification | Description |
|---|---|
| Provider | Chinese Academy of Sciences(CAS) |
| Data Input | Regional real-time GNSS reference station data |
| Number of Stations | 120-200 |
| 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 | 5°N – 60°N，70°E – 140°E |
| Thin Layer Height | 450Km |
| Spatial Resolution | 1.0° Lat × 2.0° Lon |
| Data Interval | 5 minutes |
| Data Format | Custom（IONEX-like） |