Title :
Polarimetric scattering from natural surfaces at 225 GHz
Author :
Mead, J. ; Langlois, P. ; Chang, P. ; McIntosh, R.
Author_Institution :
Microwave Remote Sensing Lab., Massachusetts Univ., Amherst, MA, USA
Abstract :
The authors present polarimetric radar measurements at 225 GHz which demonstrate that the normalized Mueller matrix may be approximated in terms of a single parameter, The depolarization ratio, defined as the ratio of cross- to copolarized normalized radar cross-sections, is shown to accurately predict backscatter from vegetation (trees and grass), and scattering from terrain at low incidence angles (snowcover and sand).<>
Keywords :
backscatter; electromagnetic wave scattering; polarimetry; remote sensing by radar; 225 GHz; EHF; backscatter; copolarized normalized RCS; cross-polarized normalized RCS; depolarization ratio; low incidence angles; microwaves; normalized Mueller matrix; polarimetric radar measurements; scattering; terrain; vegetation; Backscatter; Laboratories; Polarization; Radar polarimetry; Radar remote sensing; Radar scattering; Remote sensing; Scattering parameters; Vectors; Vegetation mapping;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1991. AP-S. Digest
Conference_Location :
London, Ontario, Canada
Print_ISBN :
0-7803-0144-7
DOI :
10.1109/APS.1991.174949
