A comparison of ionospheric propagation mode delay predictions from Advanced PROPHET 4.3 with measured data
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Authors
Nadal, Jose L.
Subjects
High frequency (HF)
Ionospheric propagation
ADVANCED PROPHET
Ionospheric propagation
ADVANCED PROPHET
Advisors
Adler, Richard W.
Date of Issue
1992-12
Date
December 1992
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
This thesis compares the outputs of the ionospheric propagation prediction model ADVANCED PROPHET, 4.3 to measurements of propagation mode delay for a High Frequency communications link between Monterey and San Diego, California. Mode delay variations throughout the day are presented for experimental data and PROHPET predictions. A margin of error of less than 0.5 msec was considered acceptable and the number of acceptable predictions per day was generated. Acceptable predicted data collected over the test period was analyzed to establish which hours of the day PROPHET accurately predicts propagation mode delay, independent of frequency, date and power levels. During the first six hours of the day PROPHET data tracks experimental data for mode delay change patterns. On a daily basis, predictions are best between 1400 and 1700 GMT (0600 to 0900 local time), although patterns could not be established for other hours of the day. Predicted mode delay percentage distributions show greater correlation during the first three hours of the morning and at sunset.
Type
Thesis
Description
Series/Report No
Department
Department of Electrical and Computer Engineering
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Funder
Format
55 p.
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
Copyright is reserved by the copyright owner