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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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Contributor : Walid Tabbara Connect in order to contact the contributor
Submitted on : Friday, April 11, 2008 - 9:10:39 AM
Last modification on : Thursday, June 17, 2021 - 3:47:39 AM




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, Institute of Electrical and Electronics Engineers, 2006, 44 (4), pp.838-848. ⟨10.1109/TGRS.2005.862521⟩. ⟨hal-00272031⟩



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