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IGARSS
2009

Dependence of P-band Interferometric Height on Forest Parameters from Simulation and Observation

9 years 5 months ago
Dependence of P-band Interferometric Height on Forest Parameters from Simulation and Observation
GeoSAR is a unique dual-band, interferometric SAR (DBInSAR) sensor capable of collecting single-pass, Xband (VV) and P-band (HH) interferometric data simultaneously. In this paper we examine the dependence of the P-band HH interferometric phase centre height upon forest and terrain parameters. We develop a simple model for P-band GeoSAR observations, and use the model to show how the elevation in P-band HH phase centre height above true ground height is related to the volume-to-ground scattering ratio. GeoSAR is not fully-polarimetric, but records cross-polar (HV) returns at P-band (although not interferometrically). We conjecture that these returns are dominated by direct-volume scattering and related to the direct-volume HH backscatter. We use this relationship to model the dependence of the P-band HH DTM height upon the HV/HH ratio, and the difference in X-band DEM with P-band DTM heights. The relationships are examined using simulated forest InSAR data, and a model is proposed for...
Marco Lavalle, Mark L. Williams, Scott Hensley, Er
Added 20 Feb 2011
Updated 20 Feb 2011
Type Journal
Year 2009
Where IGARSS
Authors Marco Lavalle, Mark L. Williams, Scott Hensley, Eric Pottier, Domenico Solimini
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