Estimation of X-Band Scattering Properties of Tree Components

David E. Pitts; Gautam D. Badhwar; Eddie Reyna; Reza Zoughi; Lin-Kun Wu; Richard K. Moore

doi:10.1109/36.7686

Estimation of X-Band Scattering Properties of Tree Components

David E. Pitts, Gautam D. Badhwar, Eddie Reyna, Reza Zoughi, Lin-Kun Wu, Richard K. Moore

Institute of Communications Engineering

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

An X-band FM-CW very fine range resolution scatterometer was used to acquire backscattering data for individual branches for a number of tree species. Using a model to describe the scattering source function, [formula omitted], and an experimental procedure for selected removal of plant parts, allows the estimation of [formula omitted], the volume backscatter coefficient, and [formula omitted], the volume extinction coefficient. It is found that 1) leaves are strong attenuators as well as scatterers, 2) the albedo, [formula omitted], at a given angle of incidence, is nearly independent of the tree type, 3) the tree limbs are good attenuators but rather poor scatterers, and 4) the albedo changes as a function of the angle of incidence and for deciduous trees is also a function of the season.

Original language	English
Pages (from-to)	612-616
Number of pages	5
Journal	IEEE Transactions on Geoscience and Remote Sensing
Volume	26
Issue number	5
DOIs	https://doi.org/10.1109/36.7686
State	Published - 1 Jan 1988

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title = "Estimation of X-Band Scattering Properties of Tree Components",

abstract = "An X-band FM-CW very fine range resolution scatterometer was used to acquire backscattering data for individual branches for a number of tree species. Using a model to describe the scattering source function, [formula omitted], and an experimental procedure for selected removal of plant parts, allows the estimation of [formula omitted], the volume backscatter coefficient, and [formula omitted], the volume extinction coefficient. It is found that 1) leaves are strong attenuators as well as scatterers, 2) the albedo, [formula omitted], at a given angle of incidence, is nearly independent of the tree type, 3) the tree limbs are good attenuators but rather poor scatterers, and 4) the albedo changes as a function of the angle of incidence and for deciduous trees is also a function of the season.",

author = "Pitts, {David E.} and Badhwar, {Gautam D.} and Eddie Reyna and Reza Zoughi and Lin-Kun Wu and Moore, {Richard K.}",

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T1 - Estimation of X-Band Scattering Properties of Tree Components

AU - Pitts, David E.

AU - Badhwar, Gautam D.

AU - Reyna, Eddie

AU - Zoughi, Reza

AU - Wu, Lin-Kun

AU - Moore, Richard K.

PY - 1988/1/1

Y1 - 1988/1/1

N2 - An X-band FM-CW very fine range resolution scatterometer was used to acquire backscattering data for individual branches for a number of tree species. Using a model to describe the scattering source function, [formula omitted], and an experimental procedure for selected removal of plant parts, allows the estimation of [formula omitted], the volume backscatter coefficient, and [formula omitted], the volume extinction coefficient. It is found that 1) leaves are strong attenuators as well as scatterers, 2) the albedo, [formula omitted], at a given angle of incidence, is nearly independent of the tree type, 3) the tree limbs are good attenuators but rather poor scatterers, and 4) the albedo changes as a function of the angle of incidence and for deciduous trees is also a function of the season.

AB - An X-band FM-CW very fine range resolution scatterometer was used to acquire backscattering data for individual branches for a number of tree species. Using a model to describe the scattering source function, [formula omitted], and an experimental procedure for selected removal of plant parts, allows the estimation of [formula omitted], the volume backscatter coefficient, and [formula omitted], the volume extinction coefficient. It is found that 1) leaves are strong attenuators as well as scatterers, 2) the albedo, [formula omitted], at a given angle of incidence, is nearly independent of the tree type, 3) the tree limbs are good attenuators but rather poor scatterers, and 4) the albedo changes as a function of the angle of incidence and for deciduous trees is also a function of the season.

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