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作者:D. S. Kotova , M. V. Klimenko , V. V. Klimenko ...
来源:[J].Geomagnetism and Aeronomy(IF 0.332), 2017, Vol.57 (3), pp.288-300Springer
摘要:A study of HF wave propagation in the three-dimensional inhomogeneous ionosphere has been carried out in an approximation of geometrical optics. The three-dimensional medium of radio wave propagation is considered to be inhomogeneous, absorbing, and anisotropic due to the influe...
作者:Jiang Changyin , Wang Beide
来源:[J].Science in China Series E: Technological Sciences(IF 1.019), 2001, Vol.44 (3), pp.280-290Springer
摘要:Abstract(#br)The atmospheric refraction corrections of radiowave propagation for airborne and satelliteborne radars for the spherically stratified (horizontally homogeneous) atmosphere (including lower atmosphere and ionosphere) are discussed. First, the critical apparent depress...
作者:Cláudio Garcia Batista , Cássio Gonçalves do Rego
来源:[J].Journal of Microwaves, Optoelectronics and Electromagnetic Applications, 2019, Vol.17 (3), pp.373-384DOAJ
摘要:Abstract In this work a Finite-Difference Frequency-Domain (FDFD) propagation method for complex urban environments is proposed. The formulation starts from the discretization of the Helmholtz equation for the magnetic field instead of the usual separate one order derivative Ampe...
作者:D. S. Kotova , V. E. Zakharov , M. V. Klimenko ...
来源:[J].Russian Journal of Physical Chemistry B(IF 0.209), 2015, Vol.9 (6), pp.983-991Springer
摘要:Abstract(#br)The model of HF radiowave propagation, based on a geometrical optics approximation, has been extended for the case of a complex geometrical optics. The radiowave propagation in the illuminated region without going to the caustic shadow region is considered. The radiowave propagation...
作者:Sébastien Reynaud , Rodolphe Vauzelle , Alain Reineix ...
来源:[J].Microwave and Optical Technology Letters(IF 0.585), 2007, Vol.49 (6), pp.1312-1320Wiley
摘要:... In this article, we present a new look on radiowave propagation prediction, combining the advantages of these two complementary methods. This article presents several studies aiming to evaluate the validity domain of this hybrid method in terms of far‐field propagation...
作者:J. T. Gutiérrez-Mena , C. A. Gutiérrez , J. M. Luna-Rivera ...
来源:[J].IETE Technical Review(IF 0.705), 2019, Vol.36 (1), pp.27-38Taylor & Francis
摘要:... The proposed model seeks to provide new insights into the non-stationary characteristics of MIMO V2V channels stemming from the time-varying propagation delays of the received multipath signal. To achieve this goal, the temporal evolution of the propagation delays is characte...
作者:F. Perez-Fontan , M. Kvicera , P. Pechac ...
来源:[J].Radioengineering(IF 0.687), 2016, Vol.25 (4), pp.637-643DOAJ
摘要:... We assume that propagation through a canopy is accounted for by using the complex valued propagation constant obtained by MST. Unlike the case when the full MST is applied, the proposed approach offers significant benefits including a direct software implementation and accep...
作者:Ignacio Rodríguez-Rodríguez , José-Víctor Rodríguez , Leandro Juan-Llácer
来源:[J].AEUE - International Journal of Electronics and Communications(IF 0.551), 2018, Vol.85, pp.174-178Elsevier
摘要:Abstract(#br)Two radiowave propagation models which calculate the multiple-building diffraction losses through the corresponding Uniform Theory of Diffraction-Physical Optics (UTD-PO) formulations are validated with measurements performed in different locations of an urban enviro...
作者:D. Zhou , G. Clapworthy , P. Kuonen ...
来源:[J].Radioengineering(IF 0.687), 2011, Vol.20 (2), pp.398-408DOAJ
摘要:This article describes the indoor IRLA (Intelligent Ray Launching Algorithm), which originates from an efficient outdoor propagation prediction model. Implementation and validation are given in detail. An indoor office scenario is selected and simulations via the IRLA model and t...
作者:P. Valtr , P. Pechac
来源:[J].Radioengineering(IF 0.687), 2013, Vol.22 (4), pp.1296-1300DOAJ
摘要:Simple closed-form formulas for calculating coefficients of modes excited in a parallel-plate waveguide illuminated by a planar wave are presented. The mode-matching technique and Green’s formula are used to arrive at a matrix-based expression for waveguide coefficients calc...

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