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Journal Articles IEEE Transactions on Geoscience and Remote Sensing Year : 2006

A coherent model of forest scattering and SAR imaging in the VHF and UHF band

Abstract

We present a coherent scattering model to determine the forest response to an illuminating plane wave in the frequency band 20-300 MHz. In this frequency band, at low frequencies, it is well-known that the waves penetrate the canopy and allow the detection of a hidden target. We have developed a model based on a domain integral representation of the electric field. A decoupling hypothesis is stated and validated, allowing to significantly reduce the numerical complexity of the problem inherent to integral representations. The simulated scattered field is used in a standard synthetic aperture radar (SAR) imaging algorithm to build horizontal and vertical SAR images of a set of trunks and a concealed target.
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Dates and versions

hal-00272031 , version 1 (11-04-2008)

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Huy Nguyen, Hélène Roussel, Walid Tabbara. A coherent model of forest scattering and SAR imaging in the VHF and UHF band. IEEE Transactions on Geoscience and Remote Sensing, 2006, 44 (4), pp.838-848. ⟨10.1109/TGRS.2005.862521⟩. ⟨hal-00272031⟩
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