Extension of the dRET Model to Forests of Thin Cylinders

Leonor, Nuno; Ferreira, David; Caldeirinha, Rafael; Fernandes, Telmo, Telmo Rui Carvalhinho Cunha, Telmo R.; Manuel Garcia Sanchez

http://hdl.handle.net/10400.8/13299

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Authors

Leonor, Nuno

Ferreira, David

Caldeirinha, Rafael

Fernandes, Telmo, Telmo Rui Carvalhinho Cunha, Telmo R.

Manuel Garcia Sanchez

Abstract(s)

This paper presents a feasibility study on extending the applicability of the discrete radiative energy transfer (dRET) model to the trunk layer of raised canopy forests. The framework herein presented, proposes a method to predict the scattered signal inside and around a formation of cylinders (mimicking thin tree trunks), which is based on the prior knowledge of the cylinder 2-D reradiation pattern as input parameters to the dRET model. The characterization and modeling of the cylinder 2-D reradiation patterns were performed in an anechoic chamber, so that frequency-dependent effects could be evaluated. The assessment of the proposed method was performed against measurements within a formation of both metallic and dielectric cylinders mimicking thin tree trunks, at micro- and millimeter-wave frequencies, i.e., 9.4, 18.8, and 37.6 GHz.

Description

Article number - 7131495

Keywords

Millimeter wave propagation Radio propagation Random media Scattering Vegetation

URI

http://hdl.handle.net/10400.8/13299

Citation

N. R. Leonor, D. Ferreira, R. F. S. Caldeirinha, T. R. Fernandes and M. G. Sánchez, "Extension of the dRET Model to Forests of Thin Cylinders," in IEEE Transactions on Antennas and Propagation, vol. 63, no. 9, pp. 4049-4056, Sept. 2015, doi: 10.1109/TAP.2015.2448752.