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Analysis Method of Ground Wave Propagation over Land-to-Sea Mixed-Path by Using Helmholtz-Kirchhoff Integral Theorem

Toru KAWANO, Keiji GOTO, Toyohiko ISHIHARA

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Summary :

In this paper, we have derived a novel integral representation for the ground wave propagation over land-to-sea mixed-paths by applying the Helmholtz-Kirchhoff integral theorem. By using the method of stationary phase applicable uniformly as the stationary phase point approaches the endpoint of the integral, we have derived the asymptotic solution for the scattered fields consisting of the first-order and the second-order diffraction terms. We show that the asymptotic solution thus derived agrees with the asymptotic solution derived by applying the aperture field method (AFM) and the method of stationary phase. We have confirmed the validity and the utility of the novel integral representation and its asymptotic solution by comparing with the widely used mixed-path theorem and the experimental measurement performed in Kanto area and Tokyo bay.

Publication
IEICE TRANSACTIONS on Electronics Vol.E94-C No.1 pp.10-17
Publication Date
2011/01/01
Publicized
Online ISSN
1745-1353
DOI
10.1587/transele.E94.C.10
Type of Manuscript
Special Section PAPER (Special Section on Recent Progress in Electromagnetic Theory and Its Application)
Category
Radiation and Propagation

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