Results 31 to 40 of about 64 (45)

Assessment of underlying topography and forest height inversion based on TomoSAR methods

Geo-spatial Information Science
Due to the strong penetrability, long-wavelength synthetic aperture radar (SAR) can provide an opportunity to reconstruct the three-dimensional structure of the penetrable media. SAR tomography (TomoSAR) technology can resynthesize aperture perpendicular
Chuanjun Wu, Xinwei Yang, Yanghai Yu, Stefano Tebaldini, Lu Zhang, Mingsheng Liao   +5 more
doaj   +1 more source

P-Band PolInSAR Sub-Canopy Terrain Retrieval in Tropical Forests Using Forest Height-to-Unpenetrated Depth Mapping

Remote Sensing
For tropical forests characterized by tall and densely packed trees, even long-wavelength SAR signals may fail to achieve full penetration, posing a significant challenge for retrieving sub-canopy terrain using polarimetric interferometric SAR (InSAR ...
Chuanjun Wu, Jiali Hou, Peng Shen, Sai Wang, Gang Chen, Lu Zhang   +5 more
doaj   +1 more source

Addressing Tropical Forest Structure Changes with SAR Tomography: The AfriSAR 2016 - GabonX 2023 Case [PDF]

The ability of SAR Tomography (TomoSAR) in mapping forest structure changes in time by separating, quantifying and characterizing individual structural / dielectric change contributions has not been systematically characterized yet. In this work, such potentials are investigated in tropical forests sites in Gabon.
Pardini, Matteo, Guliaev, Roman, Romero Puig, Noelia, Papathanassiou, Konstantinos, Hajnsek, Irena   +4 more
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Afrisar-Tropisar: Forest Biomass Retrieval by P-Band Sar Tomography

IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium, 2018
The objective of this paper is to provide a better understanding of tomographic capabilities to estimate above ground biomass (AGB) in dense forested areas at P-band. The analysis is carried out on airborne data acquired over sites in French Guyana and in Gabon during the ESA campaigns TropiSAR and AfriSAR 2015, respectively.
D Ho Tong Minh, L Ferro-Famil, T Lê Toàn   +2 more
exaly   +5 more sources

Tomographic imaging with UAVSAR: Current status and new results from the 2016 AfriSAR campaign

2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2017
We present our progress results of SAR tomographic imaging using L-band NASA/JPL UAVSAR data collected in Gabon during the 2016 AfriSAR campaign. Several tomographic experiments were conducted in February 2016 over four different sites with a broad diversity of vegetation types, soil characteristics and weather conditions. Here we describe the campaign
Marco Lavalle
exaly   +2 more sources

3-D structure observation of African tropical forests with multi-baseline SAR: Results from the AfriSAR campaign

2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2017
AfriSAR is an ESA-funded airborne P- and L-band SAR campaign over the African tropical forests of Gabon carried out by ONERA (July 2015) and DLR (February 2016). The different acquisitions were designed in order to collect multibaseline fully polarimetric data allowing the inversion of key forest vertical structure-based parameters, like e.g.
Irena Hajnsek, Jun Su Kim, Konstantinos Papathanassiou   +2 more
exaly   +2 more sources

SAR imaging of tropical African forests with P-band multibaseline acquisitions: Results from the AfriSAR campaign

2016 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2016
AfriSAR is an ESA-funded airborne P-band SAR campaign over the African tropical forests of Gabon that is being carried out by ONERA (July 2015) and DLR (February 2016) in support of the development of the geophysical algorithms of the future BIOMASS mission.
Irena Hajnsek, K Papathanassiou, X Dupuis   +2 more
exaly   +2 more sources

The NASA AfriSAR campaign: Airborne SAR and lidar measurements of tropical forest structure and biomass in support of current and future space missions

Remote Sensing of Environment, 2021
Hao Tang, , Sassan Saatchi
exaly  

The AfriSAR Campaign: Tomographic Analysis With Phase-Screen Correction for P-Band Acquisitions

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2018
Valentine Wasik, Pascale Dubois-Fernandez   +1 more
exaly  

In Situ Reference Datasets From the TropiSAR and AfriSAR Campaigns in Support of Upcoming Spaceborne Biomass Missions

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2018
Alfonso Alonso, , Sassan Saatchi
exaly