Evaluation of Convolution Integrals Occurring in the Theory of Mixed Path Propagation
J. Ralph Johler · C. M. Lilley
Jan 1961 · U.S. Department of Commerce, Office of Technical Services
Ebook
20
Pages
About this ebook
The theory of propagation of electromagnetic waves around a sphere treats the smooth homogenous case, i.e., the case in which the surface impedance of the sphere is uninterrupted by an abrupt change in conductivity such as a land/sea boundary. It is known, however, that such a theory can be extended to treat inhomogeneous, irregular terrain by formulating certain convolution integrals which utilize the smooth homogeneous formulas. The evaluation of these integrals can be accomplished with dispatch on a large-scale electronic computer with the aid of numerical analysis techniques. The particular case of a land/sea boundary in a smooth, spherical surface is illustrated for a variety of cases by evaluating the convolution integrals on a large-scale computer.
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