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Diffraction and Scattering of the Electromagnetic Groundwave by Terrain Features
Author(s) -
Wait James R.
Publication year - 1968
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1002/rds1968310995
Subject(s) - terrain , diffraction , orthogonality , scattering , uniform theory of diffraction , class (philosophy) , electromagnetic radiation , wave propagation , forward scatter , minor (academic) , computational physics , mathematical analysis , optics , mathematics , physics , geometry , computer science , geography , cartography , artificial intelligence , law , political science
A class of two‐dimensional diffraction and scattering problems is considered for evaluating the influence of idealized terrain features in groundwave propagation. The analysis makes extensive use of the orthogonality properties of the Airy type wave functions which characterize the height dependence of the modes. The procedure is quite straightforward when reflected modes are small. Also, multiple obstacles may be treated without difficulty. Finally, it is indicated that the results may be applied to three‐dimensional configurations if certain minor modifications are introduced.