Near real-time geocoding of SAR imagery with orbit error removal
- 1 January 2003
- journal article
- research article
- Published by Informa UK Limited in International Journal of Remote Sensing
- Vol. 24 (24), 5219-5228
- https://doi.org/10.1080/0143116031000114815
Abstract
When utilizing knowledge of the spacecraft trajectory for near real-time geocoding of Synthetic Aperture Radar (SAR) images, the main problem is that predicted satellite orbits have to be used, which may be in error by several kilometres. As part of the development of a Dutch autonomous mobile ground station to receive and process satellite SAR data, a method has been developed that removes the effects of orbit errors from the computed azimuth and slant-range coordinates, whilst maintaining the real-time character. Results show that predicted orbits can be used to geocode SAR imagery in near real time with the same accuracy as when using precise orbits, i.e. 30–40m.Keywords
This publication has 3 references indexed in Scilit:
- A guided tour through the bookPublished by Cambridge University Press (CUP) ,1999
- Precise orbit determination and gravity field improvement for the ERS satellitesJournal of Geophysical Research: Oceans, 1998
- Location of Spaceborne Sar ImageryIEEE Transactions on Geoscience and Remote Sensing, 1982