A feasibility study on the extension of the point scatterer formulation to include wind induced dynamics
A feasibility study on the extension of the point scatterer formulation to include wind induced dynamics
- Author(s): N. Leonor ; R. Caldeirinha ; M. Sanchez ; T. Fernandes ; S. Morgadinho
- DOI: 10.1049/cp.2017.0305
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- Author(s): N. Leonor ; R. Caldeirinha ; M. Sanchez ; T. Fernandes ; S. Morgadinho Source: Loughborough Antennas & Propagation Conference (LAPC 2017), 2017 page (5 pp.)
- Conference: Loughborough Antennas & Propagation Conference (LAPC 2017)
- DOI: 10.1049/cp.2017.0305
- ISBN: 978-1-78561-699-0
- Location: Loughborough, UK
- Conference date: 13-14 Nov. 2017
- Format: PDF
This paper presents a feasibility study on the extension of the point scatterer formulation to include time-varying effects caused by wind induced channel dynamics. This modeling approach, which is based on a ray-tracing algorithm, employs various point scatterers with specific radiation characteristics, distributed within a computational volume, to characterize the electromagnetic behavior in the presence of trees and vegetation volumes. This propagation model has now been extended to include the time-varying received signal level, caused by the swaying motion of branches, twigs and leafs. To this extent, a statistical model is used to characterize the time-varying attenuation of each multipath component. The performance of the proposed model is assessed against measurements intended to record the dynamic re-radiation pattern of a tree in various windy conditions, which included four wind directions and two wind speeds.
Inspec keywords: vegetation; electromagnetic wave propagation; ray tracing; statistical analysis; electromagnetic wave scattering
Subjects: Probability theory, stochastic processes, and statistics; Electromagnetic wave propagation; Other topics in statistics; Electromagnetic waves: theory
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