| Titre | Ortho-rectification of polarimetric Radarsat-2/RCM data with accurate lidar DSM |
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| Auteur | Toutin, T; Wang, H; Chomaz, P; Pettier, E |
| Source | IEEE International Geoscience and Remote Sensing Symposium proceedings 6352271, 2012 p. 5880-5883, https://doi.org/10.1109/IGARSS.2012.6352271 |
| Année | 2012 |
| Séries alt. | Ressources naturelles Canada, Contribution externe 20181775 |
| Éditeur | IEEE |
| Document | publication en série |
| Lang. | anglais |
| DOI | https://doi.org/10.1109/IGARSS.2012.6352271 |
| Media | papier; en ligne; numérique |
| Formats | pdf |
| Sujets | télédétection; géophysique |
| Programme | Direction du Centre canadien de télédétection |
| Diffusé | 2012 07 01 |
| Résumé | (disponible en anglais seulement)
Ortho-rectification using digital terrain models is a key issue for full polarimetric complex synthetic aperture radar (SAR) data because resampling the complex
data can corrupt the polarimetric phase, mainly in study sites with relief. This research thus compared two approaches for the ortho-rectification of the complex SAR data: the polarimetric processing is performed before (scientist approach) or after
(user approach) the geometric processing. A quantitative evaluation between the two approaches as a function of different geometric and radiometric parameters was thus performed to quantify the impact of the ortho-rectification on the complex
polarimetric SAR. Radarsat-2 fine-quad data acquired over a rolling relief study site were geometrically processed using a lidar digital surface model. The evaluation results showed than the terrain slopes and land covers can potentially corrupt the
polarimetric complex SAR data during the ortho-rectification. Advices are finally provided to reduce these impacts to an acceptable level for the users and their applications. Preliminaries results of simulated compact polarimetric SAR data of the
new Canadian Radar Constellation Mission will be presented at the Conference. |
| GEOSCAN ID | 312130 |
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