Comparison of GNSS-R processing techniques for spaceborne ocean altimetry
Document typeConference report
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Rights accessRestricted access - publisher's policy
Earth-reflected Global Navigation Satellite System (GNSS) have become an attractive tool to be employed in low-Earth-orbit spaceborne missions, for applications such as ocean mesoscale altimetry and scatterometry. For such techniques, several on-board processing strategies have been proposed, either based on the correlation with on-board generated signal or based on 'blind' interferometric processing, which involves the correlation between received direct and reflected signals. This paper will provide a comparison of these two proposed GNSS-R processing techniques, highlighting the possible achieved performance for a typical spaceborne scenario. The performance comparison will be carried out by analyzing the widely used Cramer-Rao Bound, which takes into account the full statistical properties of the reflected signals and provides accurate comparison.
CitationMartin, F., d'Addio, S., Camps, A., Martín, M., Park, H., Pascual, D. Comparison of GNSS-R processing techniques for spaceborne ocean altimetry. A: IEEE International Geoscience and Remote Sensing Symposium. "IEEE International Geoscience and Remote Sensing Symposium, July 2013, Melbourne, Australia.". Melbourne: Institute of Electrical and Electronics Engineers (IEEE), 2013, p. 2939-2942.