Measurement and simulation of L-band emission for a larch forest stand

Komarov, S. A.; Kleshchenko, V.N.; Shcherbinin, V. V.; Миронов, В. Л.

doi:10.1109/igarss.2004.1370452

Cited by 1 publication

(3 citation statements)

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“…Different approaches apply to the electric characterization of forests depending on density, moisture, etc. Frequently, the effective dielectric constant is introduced using the refractive formula of the mixing theory [1,6]. In general, anisotropy of an effective dielectric medium simulating the forest must depend on intrinsic architecture of tree species.…”

Section: Numerical Results and Conclusionmentioning

confidence: 99%

“…The reflectance of plane radio wave relating to inhomogeneous dielectric layer which emulates the forest canopy is an essential element when modeling forest radiobrightnesses [1]. Meanwhile, the radiobrightnesses measured in [1] have appeared to substantially depend on polarization of the radiation emitted by the forest canopy, which may be caused by anisotropic properties of the effective permittivity in a dielectric layer emulating the forest canopy.…”

Section: Introductionmentioning

confidence: 98%

“…Meanwhile, the radiobrightnesses measured in [1] have appeared to substantially depend on polarization of the radiation emitted by the forest canopy, which may be caused by anisotropic properties of the effective permittivity in a dielectric layer emulating the forest canopy. The problem of taking into account anisotropic properties of the forest layer, in terms of its effective permittivity, was studied in [2], though the anisotropic dielectric slab was supposed to be homogeneous in the height.…”

Section: Introductionmentioning

confidence: 98%

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Radio Wave Reflectance for an Anisotropic and Inhomogeneous Forest Layer

Миронов¹,

Shevnin²,

Fisanov³

2006

2006 IEEE International Symposium on Geoscience and Remote Sensing

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In this paper, the forest medium is described as a transversely inhomogeneous uniaxial anisotropic dielectric. In order to take into consideration the surface of ground, an impedance boundary condition is assigned at the bottom of the dielectric slab. In this way established uniaxial anisotropy of the effective complex dielectric constant corresponds to the predominantly vertical orientation of tree elements. Reflections of horizontally and vertically polarized plane waves from the multilayered inhomogeneous forest slab are considered separately because of the ordinary and extraordinary waves propagate independently in uniaxial partial layers under study. The numerical results show difference in reflectance of horizonally and vertically polarized waves in comparison with the isotropic forest slab model.

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Section: Numerical Results and Conclusionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%