Assessing the potential of fully-polarimetric simultaneous mono- and bistatic airborne SAR acquisitions in L-band for applications in agriculture and hydrology

Bouchat, Jean;Tronquo, Emma;Lievens, Hans;Verhoest, Niko E.C.;Defourny, Pierre
(2021) IEEE 2021 International Geoscience & Remote Sensing Symposium (IGARSS 2021) — Location: Brussels, Belgium (12.July.2021)

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Theoretical studies have shown that the use of simultaneous mono- and bistatic synthetic aperture radar (SAR) data could be beneficial to agriculture and soil moisture monitoring. This study makes use of extensive ground-truth measurements and synchronous high-resolution fully-polarimetric mono- and bistatic airborne SAR data in L-band to assess and compare the sensitivity of mono- and multistatic systems to maize crop variables, soil moisture, and surface roughness. Its results suggest that bistatic data, even with a very small bistatic angle, provide valuable additional information for maize crop biophysical parameter retrieval. However, this does not appear to be the case for soil moisture retrieval over bare soils.
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Bouchat, J., Tronquo, E., Lievens, H., Verhoest, N. E. C., & Defourny, P. (2021). Assessing the potential of fully-polarimetric simultaneous mono- and bistatic airborne SAR acquisitions in L-band for applications in agriculture and hydrology. 2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS. Published. IEEE 2021 International Geoscience & Remote Sensing Symposium (IGARSS 2021), Brussels, Belgium. https://doi.org/10.1109/IGARSS47720.2021.9554673 (Original work published 2021)