Abstract
In the application of global navigation satellite system-reflection (GNSS-R) technology, the GNSS-R signal simulator is needed to test the reflection signal receiver in order to reduce costs. A modeling method of global navigation satellite system (GNSS) sea surface reflection signal based on the principle of bistatic radar is presented. First, the remote sensing principle of GNSS-R bistatic radar was analyzed. Then, according to the distribution characteristics of the delay and the Doppler frequency on the sea surface, the reflection points of the sea surface were selected, and the area of corresponding reflection units was calculated. Subsequently, the calculation of the scattering coefficient was carried out. Finally, the simulation verification of the multiple combined signals was conducted. The simulation results indicate that the correlation coefficient of the simulated ocean reflection signal's correlation power curve and the theoretical curve of the ZV model is better than 0. 92, which can be used to generate the GNSS ocean reflection signal effectively.
| Original language | English |
|---|---|
| Pages (from-to) | 125-131 |
| Number of pages | 7 |
| Journal | Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics |
| Volume | 44 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 2018 |
Keywords
- Bistatic radar
- Global navigation satellite system (GNSS)
- Ocean remote sensing
- Reflection signal
- ZV model
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