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dc.contributor.advisorJanaswamy, R.
dc.contributor.authorLee, Joo-Kiong
dc.dateMarch 1995
dc.date.accessioned2013-04-29T22:51:41Z
dc.date.available2013-04-29T22:51:41Z
dc.date.issued1995-03
dc.identifier.urihttp://hdl.handle.net/10945/31583
dc.description.abstractThe problem of radiowave propagation over irregular terrain is solved by using the standard parabolic equation method. The ground is characterized by an impedance boundary condition and a height profile. A tropospheric boundary condition is used to truncate the computational domain. This thesis uses a novel approach of casting all the equations in a curvilinear coordinate system. The coordinate system is generated in a simple manner using the ground profile data. The equations are solved by the finite difference method using the Crank- Nicolson scheme. Different numerical values for various important parameters (e. g., step size, location of tropospheric boundary, the region above the tropospheric boundary, etc.) were used, and their effect on the accuracy and computing time are discussed. Validation of the numerical results with exact and/or experimental results are presented for different terrain profiles. Both perfectly electric conducting (PEC) and lossy impedance surfaces are considered. (KAR) P. 2en_US
dc.description.urihttp://archive.org/details/radiowavepropaga1094531583
dc.format.extent86 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.titleRadiowave propagation over an irregular terrain using the parabolic equation method in a curvilinear coordinate systemen_US
dc.typeThesisen_US
dc.contributor.departmentElectrical Engineering
dc.description.funderNAen_US
dc.description.recognitionNAen_US
dc.description.serviceSingapore Air Force author.en_US
etd.thesisdegree.nameM.S. in Electrical Engineeringen_US
etd.thesisdegree.levelMastersen_US
etd.thesisdegree.disciplineElectrical Engineeringen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US


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