An analysis of a ray trace experiment on the underwater range at Dabob Bay
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Authors
Bankston, Victor Joseph
Subjects
Ray-tracing
Underwater range
Dabob Bay
Keyport, Washington
Underwater range
Dabob Bay
Keyport, Washington
Advisors
Sanders, James V.
Date of Issue
1975-03
Date
March 1973
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
An analysis of an experiment to determine the precision, the effects of varying amounts of environmental data, and the feasibility of the use of historical environmental data at the NAVTORPSTA, Keyport, Washington, Dabob Bay facility is presented. The analysis verifies and extends the results of a preliminary investigation of the of the experimental data. The experiment consisted of tracking a 75-kHz source at six depths at each of six horizontal ranges. The data were analyzed utilizing an isogradient ray-tracing program. The results showed that the precision of the range position as determined by the ranging system in dependent only on the rise-time of the 75 kHz signal; that the use of less environmental data and historical data as the environmental input for positioning calculations have been shown to cause only a minor degradation in the accuracy of the ranging system.
Type
Thesis
Description
Series/Report No
Department
Antisubmarine Warfare Academic Group
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Funder
Format
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.