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dc.contributor.advisorCoppens, Alan B.
dc.contributor.authorTakamiya, Patrick Toyoki
dc.dateMarch 1994
dc.date.accessioned2014-08-13T20:27:18Z
dc.date.available2014-08-13T20:27:18Z
dc.date.issued1994-03
dc.identifier.urihttp://hdl.handle.net/10945/42954
dc.description.abstractImage theory is an ideal method for calculating the transmission loss in a shallow water (wedge shaped ocean) environment. It can be used in cross-slope, at all frequencies and in transitional cut off regions that are out of bounds to normal mode theories. This thesis had three objectives: 1) convert the existing image theory models called URTEXT and WEDGE into a high level scripting language called MATLAB™ by Math Works, 2) linearize the existing quadruplet expansion program to increase speed, and 3) to incorporate the Arctan approximation of the Rayleigh reflection coefficient into the quadruplet expansion for the fast bottom case. Objective 1 was completed with accurate results. Objective 2 was completed with a factor of 8 increase in speed. Objective 3 incorporated the Arctan approximation of the reflection coefficient for a fast bottom into the quadruplet expansion, but due to the inaccuracy of the reflection coefficient after the second quadruplet, the results were not favorable. It was also discovered that even with the Rayleigh reflection coefficient, the first order approximations made in developing the quadruplet expansion equation (Equation 6-27) are not accurate enough for the fast bottom case.en_US
dc.description.urihttp://archive.org/details/approximationoff1094542954
dc.format.extent76 p.en_US
dc.language.isoen_US
dc.publisherMonterey, California. Naval Postgraduate Schoolen_US
dc.rightsThis 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.en_US
dc.titleApproximation of the fast bottom reflection coefficient in the quadruplet expansion of the method of images in a wedge shaped oceanen_US
dc.typeThesisen_US
dc.contributor.corporateNaval Postgraduate School (U.S.)
dc.subject.authorNAen_US
dc.description.serviceU.S. Navy (USN) authoren_US
dc.identifier.oclcocn640618212
etd.thesisdegree.nameM.S. in Applied Scienceen_US
etd.thesisdegree.levelMastersen_US
etd.thesisdegree.disciplineApplied Scienceen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US
dc.description.distributionstatementApproved for public release; distribution is unlimited.


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