학술논문

SIR-C polarimetric backscatter features of agricultural land cover types early during the growing season
Document Type
Conference
Source
IGARSS '96. 1996 International Geoscience and Remote Sensing Symposium Geoscience and remote sensing Geoscience and Remote Sensing Symposium, 1996. IGARSS '96. 'Remote Sensing for a Sustainable Future.', International. 4:1980-1982 vol.4 1996
Subject
Geoscience
Signal Processing and Analysis
Backscatter
Testing
Crops
Polarization
Soil
Vegetation mapping
Scattering
Radar polarimetry
L-band
Magnetic separation
Language
Abstract
This study focuses on the polarimetric radar backscatter responses observed for different agricultural land cover types early during the growing season, in two well-separated test sites. These were Oltrepo Pavese in northern Italy and Oberpfaffenhofen in southern Germany. Results show that L-band was better at discriminating between agricultural land cover types than C-band. However effects due to soil roughness and those due to vegetation in the fields were difficult to separate using only backscatter amplitude information. Polarimetric information expressed through the HH-VV correlation coefficients and as polarimetric signatures however, provided additional information on the backscatter mechanisms for various land cover types and allowed for the separation of vegetation and soil effects.