Title :
Correlation of temporal variations of active and passive microwave signatures from vegetation canopy
Author :
Jin, Ya-Qiu ; Huang, Xing-Zhong
Author_Institution :
Wave Scattering & Remote Sensing Centre, Fudan Univ., Shanghai, China
fDate :
1/1/1996 12:00:00 AM
Abstract :
Employing the model of a layer of continuous random medium with an underlying rough surface, the bistatic scattering and backscattering coefficients are calculated. By using the reciprocity, the emissivity is then calculated. Numerical results simulate the temporal variations of complementary backscattering and emissivity of the vegetation canopies. Theoretical results are compared with the measurements of active and passive remote sensing of several vegetation canopies. The correlated characteristics of microwave active and passive remote sensing are discussed
Keywords :
backscatter; geophysical techniques; microwave measurement; radar cross-sections; radiometry; remote sensing; remote sensing by radar; spaceborne radar; SHF; active signature; backscatter; backscattering coefficient; bistatic scattering; continuous random medium; geophysical measurement technique; microwave emission; microwave emissivity; microwave radiometry; passive microwave signature; radar remote sensing; reciprocity; spaceborne radar scattering model; temporal variation; underlying rough surface; vegetation canopy; vegetation mapping; Backscatter; Dielectric constant; Energy conservation; Microwave measurements; Polarization; Radar scattering; Remote sensing; Rough surfaces; Surface roughness; Vegetation;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
