Title :
On the sensitivity of polarimetric coherence to small and large scale surface roughness
Author :
Mattia, Francesco ; Le Toan, Thuy ; Lee, Jong-Sen ; Schuler, Dale L.
Author_Institution :
Ist. di Radioastronomia, Consiglio Nazionale delle Ricerche, Matera, Italy
Abstract :
The objective of this paper is to investigate the effect of a two-scale surface roughness description on the polarization coherence in circular polarization (i.e. PRRLL). Under the assumption of sufficiently smooth surfaces, the small-slope approximation (SSA) model is employed to derive a first order expression for PRRLL. In the paper the sensitivity of PRRLL to azimuth slopes is presented.
Keywords :
geophysical techniques; polarisation; radar polarimetry; remote sensing; sensitivity; surface roughness; PRRLL sensitivity; SSA model; azimuth slopes; circular polarization; large scale surface roughness; polarimetric coherence; small scale surface roughness; small-slope approximation; smooth surfaces; two-scale surface roughness; Azimuth; Biosphere; Coherence; Electromagnetic scattering; Electromagnetic wave polarization; Large-scale systems; Rough surfaces; Surface roughness; Surface topography; Surface waves;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2003. IGARSS '03. Proceedings. 2003 IEEE International
Print_ISBN :
0-7803-7929-2
DOI :
10.1109/IGARSS.2003.1293885
