1 research outputs found
Ionosphere Correction of Polarimetric Interferometric BIOMASS SAR Data
Interferograms at different polarisations form the basis of
Polarimetric SAR Interferometry (Pol-InSAR), a radar
remote sensing technique which uses the coherent
combination of interferometric and polarimetric information
to characterise and estimate structural parameters of natural
and man-made (volume) scatterers. In the frame of the
BIOMASS mission Pol-InSAR techniques are used to
estimate yearly (top canopy) forest height on a global scale
with a spatial resolution of 100 x 100 m2 and with an
accuracy of 20-30%. The model based estimation is based
on the Pol-InSAR data acquired by BIOMASS: three quadpolarimetric acquisitions (separated by 3 or 4 days from
each other, with a constant progression on the order of 40%
of the critical baseline) acquired in ascending and in
descending geometry twice a year