Millimeter wave backscatter from deciduous trees

Author

Borel, Christoph C. ; McIntosh, Robert E.

Author_Institution

Los Alamos Nat. Lab., NM, USA

Volume

38

Issue

9

fYear

1990

fDate

9/1/1990 12:00:00 AM

Firstpage

1391

Lastpage

1398

Abstract

Measurements of the millimeter-wave backscatter from deciduous (leafed) trees are explained using a simple scattering model. The backscatter from individual leaves was measured in the laboratory and used to justify the use of an average leaf radar cross section when computing the normalized radar cross section (NRCS) of tree canopies. NRCS measurements of canopies show that the direction in which incident radiation impinges on the canopy is an important factor in characterizing radar backscatter. Comparisons of measured NRCS values demonstrate that planophil and erectophil trees can be distinguished based on their backscatter at 215 GHz

Keywords

backscatter; electromagnetic wave scattering; microwave measurement; radar cross-sections; radar measurement; radiowave propagation; 215 GHz; EHF; MM wave; average leaf radar cross section; deciduous trees; erectophil trees; individual leaves; millimeter-wave backscatter; normalized radar cross section; planophil trees; radar backscatter; scattering model; tree canopies; Backscatter; Electromagnetic measurements; Electromagnetic scattering; Laboratories; Millimeter wave measurements; Millimeter wave propagation; Millimeter wave radar; Radar cross section; Radar measurements; Radar scattering;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.56990

Filename

56990