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On the applicability of the dRET model to the trunk layer
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| This paper presents a method to model the scattered signal from a regular formation of cylinders, both dielectric and metallic, at micro and millimeter wave frequencies. The model, aims to predict the signal emanated inside and around an isolated block of tree trunks, and might be used as part of a larger algorithm intended to model isolated volumes of vegetation. The method presented here, is based on the prior knowledge of the re-radiation function of cylinders and used the dRET (discrete Radiative Energy Transfer) model, to gather the interactions between the trunks present in the formation to predict the directional profile of the received signal power level at various location inside the formation. The re-radiation function from cylinders, is predicted based on a model previously applied to lamp posts, and is assessed by comparison with measurements performed at 18 and 36 GHz. These functions are subsequently used to input the dRET model whose predictions were also assessed with measurements obtained inside an anechoic chamber, using the same spot frequencies. | 142.61 KB | Adobe PDF |
Orientador(es)
Resumo(s)
This paper presents a method to model the scattered signal from a regular formation of cylinders, both dielectric and metallic, at micro and millimeter wave frequencies. The model, aims to predict the signal emanated inside and around an isolated block of tree trunks, and might be used as part of a larger algorithm intended to model isolated volumes of vegetation. The method presented here, is based on the prior knowledge of the re-radiation function of cylinders and used the dRET (discrete Radiative Energy Transfer) model, to gather the interactions between the trunks present in the formation to predict the directional profile of the received signal power level at various location inside the formation. The re-radiation function from cylinders, is predicted based on a model previously applied to lamp posts, and is assessed by comparison with measurements performed at 18 and 36 GHz. These functions are subsequently used to input the dRET model whose predictions were also assessed with measurements obtained inside an anechoic chamber, using the same spot frequencies.
Descrição
Conference date - 12 April 2010 - 16 April 2010; Conference code - 81332
EISBN - 978-84-7653-472-4
EISBN - 978-84-7653-472-4
Palavras-chave
Predictive models Scattering Dielectrics Millimeter wave technology Vegetation Energy exchange Lamps Performance evaluation Frequency measurement Anechoic chambers
Contexto Educativo
Citação
T. Fernandes, N. Leonor, R. Caldeirinha, J. Richter and M. Al-Nuaimi, "On the applicability of the dRET model to the trunk layer," Proceedings of the Fourth European Conference on Antennas and Propagation, Barcelona, Spain, 2010, pp. 1-4.
Editora
IEEE Canada
Licença CC
Sem licença CC