Title :
Surface parameter estimation using interferometric and polarimetric SAR
Author :
Hajnsek, I. ; Papathanassiou, K.P. ; Moreira, A. ; Cloude, S.R.
Author_Institution :
Inst. for Radio Frequency Technol. & Radar Syst., DLR, Wessling, Germany
Abstract :
In this work the potential of using the interferometric coherence at different polarisations over surface scatterers in order to extract information about surface parameters is investigated. The sensitivity of the individual coherence contributions to surface roughness and moisture conditions is discussed and simulated using a polarimetric surface scattering model. Finally, experimental airborne SAR data are used to demonstrate the discussed effects.
Keywords :
backscatter; geophysical techniques; hydrological techniques; radar cross-sections; radar polarimetry; radar theory; remote sensing by radar; synthetic aperture radar; terrain mapping; backscatter; geophysical measurement technique; hydrology; interferometric SAR; interferometric coherence; land surface; moisture; polarimetric SAR; radar polarimetry; radar remote sensing; radar scattering; soil moisture; surface parameter estimation; surface roughness; surface scattering model; synthetic aperture radar; terrain mapping; Anisotropic magnetoresistance; Coherence; Decorrelation; Parameter estimation; Polarization; Reflectivity; Rough surfaces; Scattering; Surface roughness; Surface topography;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2002. IGARSS '02. 2002 IEEE International
Print_ISBN :
0-7803-7536-X
DOI :
10.1109/IGARSS.2002.1025059
