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Electromagnetic backscattering from a random distribution of lossy dielectric scatterers (1980)

Lang, R. H.

In: CASI

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Publication Date: 2019-06-27

Description: Electromagnetic backscattering from a sparse distribution of discrete lossy dielectric scatterers occupying a region 5 was studied. The scatterers are assumed to have random position and orientation. Scattered fields are calculated by first finding the mean field and then by using it to define an equivalent medium within the volume 5. The scatterers are then viewed as being embedded in the equivalent medium; the distorted Born approximation is then used to find the scattered fields. This technique represents an improvement over the standard Born approximation since it takes into account the attenuation of the incident and scattered waves in the equivalent medium. The method is used to model a leaf canopy when the leaves are modeled by lossy dielectric discs.

Keywords: COMMUNICATIONS AND RADAR

Type: NASA-CR-162922

Format: application/pdf

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