Abstract
An improved method of calculating space-borne synthetic aperture radar(SAR) Doppler parameters is presented. The method relates to the satellite ephemeris. The improved method introduces J2 perturbation influence on perigee amplitude and longitude ascending node to Doppler parameters calculation effectively and obtains more accurate Doppler parameters. The difference between the traditional method and the improved method is analyzed, and the accuracy of the improved method is verified through computer simulation.
| Original language | English |
|---|---|
| Pages (from-to) | 1221-1225 |
| Number of pages | 5 |
| Journal | Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology |
| Volume | 30 |
| Issue number | 10 |
| Publication status | Published - Oct 2010 |
Keywords
- Doppler parameters
- J2 perturbation
- Synthetic aperture radar (SAR)