Publication:
Comparison of electromagnetic propagation predictions from IREPS and RPO across a coastal transition

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Authors
Campbell, Bryce
Siletzky, Stephan
Subjects
Advisors
Glendening, John W.
Davidson, Kenneth L.
Date of Issue
1992-03
Date
Mar-92
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
The Navy's existing electromagnetic propagation prediction software, the Integrated Refractive Effects Prediction System (IREPS), neglects signal leakage from a duct, approximates diffraction, and assumes atmospheric horizontal homogeneity. To ameliorate these deficiencies, the Radio Physics Optics (RPO) program is being developed. This thesis analyzes the significantly different propagation predictions of the two models. RPO predicts significantly shorter propagation ranges in a duct than does IREPS. RPO predicts variations in duct thickness and height which IREPS idealizes, and RPO also computes a signal strength above the duct. Only RPO predicts significant interactions between the duct's dM/dz gradient and frequency. RPO is capable of modeling propagation paths for an inhomogeneous atmosphere. Neglecting atmospheric inhomogeneities in a coastal region introduces significant propagation prediction errors.
Type
Thesis
Description
Series/Report No
Department
Joint Command.-Control, and Communications Academic Group
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Funder
Format
xiii, 75 p.: ill.;28 cm.
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
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