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Study on Parameters Inversion of EM Scattering from Vegetation

Author: SuRong
Tutor: ZhangMin
School: Xi'an University of Electronic Science and Technology
Course: Radio Physics
Keywords: Electromagnetic scattering model And polarized interferometric synthetic aperture radar (SAR) Parameter inversion Inversion algorithm
CLC: TN011
Type: Master's thesis
Year: 2011
Downloads: 50
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Abstract


Studied the inverse problem of electromagnetic scattering parameters of the vegetation , detailed discussion of polarization interferometric synthetic aperture radar (SAR) of various inversion height algorithm , is important to promote the development of remote sensing technology . The main work and the results are as follows : . Wheat , for example , the application of vector radiative transport theory to solve electromagnetic scattering coefficient of the double-layer vegetation , the application of the Monte Carlo method to discuss the trunk layer scattering coefficient . 2 . Study coherent scattering model surface parameters inversion model in function of the vertical structure of vegetation . By the introduction of a RVoG , and OVoG vegetation model , discussed the role of the various parameters , and focuses on the relationship between the RVoG model and its inversion model . Analyzed based on the extended Bragg model soil parameters , validate the utility of dielectric constant inversion angle α ; through the three-component decomposition method can be removed with vegetation rough surface inversion problem ; elaborate DEM difference algorithm and coherent amplitude law principles, and already theoretically improve the integration of the two algorithms , inversion tree high precision can be improved . Described the vertical structure of the vegetation , the vegetation established the classic ESPRIT algorithm , based on the statistical characteristics of the maximum likelihood algorithm inversion tree model , research the use of single- the baseline inversion forest height . At the same time , also discussed the artificial target for vegetation scattering coefficient .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > General issues > Basic theory > Radio wave propagation,the propagation mechanism
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