Ray trace experiment on the underwater range at Dabob Bay
By: Stuart Charles Karon
Contributors: Naval Postgraduate School (U.S.)
Publisher: Naval Postgraduate School
Published: 1974
Place of publication: Monterey, California
Language: eng
Number of pages: 84
Subjects: Physics
Description: Preliminary results of an experiment to determine the accuracy and the effects of varying amounts of environmental data at the NAVTORPSTA, Keyport, Washington, Dabob Bay Range are presented. A 75-KHz source was tracked at six depths at each of six horizontal ranges. The data were analyzed by the NAVTORPSTA NUTRACK III isovelocity-layer computer program and by an isogradient-layer program developed here, STUTRACK I. The results show that a low signal-to-noise ratio is not a problem even at long distances and that an isogradient analysis yields superior results with less environmental data than does the isovelocity method.
Notes: Thesis Advisor(s): Sanders, James V. ; Second Reader: Dahl, Harvey A.

"December 1974."

Author(s) subject terms: Ray-Tracing, Underwater Range, Dabob Bay, Keyport, Washington.

Description based on title screen as viewed on September 22, 2010.

DTIC Identifier(s): Dabob Bay, STUTRACK 1 Computer Program.

Thesis (M.S. in Engineering Acoustics)--Naval Postgraduate School, December 1974.

Includes bibliographical references (p. 83).

"Approved for public release, distribution unlimited"--Cover.

United States Navy (USN) author.

record replaced 9/22/10. rb