ZENG Qi_ming, MA Hong_bing, ZHANG Tao. Simulation and Analysis for the Microwave Backscattering Coefficient of Rice[J]. Journal of Remote Sensing, 2000,(1):14-21.
ZENG Qi_ming, MA Hong_bing, ZHANG Tao. Simulation and Analysis for the Microwave Backscattering Coefficient of Rice[J]. Journal of Remote Sensing, 2000,(1):14-21. DOI: 10.11834/jrs.20000103.
Based on the Vector Radiative Transfer Theory (VRT) and SAR technology characteristics
several sub
m
odels for rice are constructed such as leaf scattering model
leaf extinction models
trunk scattering model
trunk extinction model and water reflection model. Then an integrated model including all the main physical processes of rice first
o
rder scattering mechanisms is achieved. By simulations using the validated model
the backscattering coefficient of the rice canopy which can be deduced from the SAR data will be obtained. It will be helpful in theoretical and methodological guidance for using SAR data to make rice fields mapping
rice growth monitoring and rice production forecasting more effectively
more economically and more expediently. In this paper
all of the models are introduced in detail and systema tically. Based on the simulation results
the variations of the rice backscattering coefficient with the date
incidence angle
wave band and polarization change are discussed. At the end of this article
some valuable quantificational results and practical conclusions are summarized.