A wide angle split-step parabolic equation model for propagation predictions over terrain
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Authors
Vlachos, Konstantinos.
Subjects
Advisors
Janaswamy, Ramakrishna
Date of Issue
1996-03
Date
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
The problem of radiowave propagation over irregular terrain is solved by using the wide angle parabolic equation method. The terrain is characterized by its height profile and its ground constants (here conductivity alpha goes to infinity). We consider horizontal polarization and treat the round as perfectly conducting (PEC) to simplify the formulation. This thesis uses a piece-wise conformal transformation to flatten the irregular terrain. The equations are solved by the split-step Fourier algorithm. A Hanning window is used both in spatial and in wavenumber domains to contain the computational domain. Effect of some numerical parameters such as the horizontal step size height of the computational domain on the accuracy of the solution is investigated. The numerical results are compared with available results for some typical propagation problems
Type
Thesis
Description
Series/Report No
Department
Electrical Engineering
Organization
Identifiers
NPS Report Number
Sponsors
Funder
Format
40 p.
Citation
Distribution Statement
Approved for public release; distribution is unlimited.