Publication:
Low latitude ionospheric effects on radiowave propagation

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Authors
Smith, Rasler W.
Subjects
Low latitude ionosphere
Equatorial
Scintillation
Geopositioning
Global positioning system
GPS
Total electron content
TEC
Transequatorial propagation
TEP
Advisors
Adler, Richard W.
Date of Issue
1998-06-01
Date
June 1998
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
This dissertation provides experimental observations and analyses that associate low-latitude transionospheric signal scintillation with transequatorial VHF radio propagation and errors in transionospheric geopositioning. The experiment observed equatorial-region ionospheric total electron content (TEC) derived from Global Positioning System (GPS) signals using receivers on Oahu, Hawaii, Christmas Island, and Rarotonga, Cook Islands. The experiment simultaneously measured VHF transequatorial propagation of VHF television signals from Hawaii to Rarotonga Analysis shows that a moving second moment of vertical-equivalent TEC strongly correlates to each VHF transequatorial radio propagation event From experimental observation analysis, the author develops models for prediction of TEP and nine-space distribution of low-latitude transionospheric scintillation. The author also develops equations that show the potential errors in nine, frequency, and angle used in geopositioning solutions. These three parameters are potentially correctable using these techniques.
Type
Thesis
Description
Series/Report No
Department
Department of Electrical and Computer Engineering
Organization
Naval Postgraduate School
Identifiers
NPS Report Number
NPS-EC-98-010
Sponsors
Funder
Naval Information Warfare Center and Center for Reconnaissance Research - N417695WR57587 and MIPR 97110-T
Format
xiv, 182 p.: ill.
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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