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dc.contributor.advisorJenn, David C.
dc.contributor.authorAytun, Alper
dc.date.accessioned2012-03-14T17:44:17Z
dc.date.available2012-03-14T17:44:17Z
dc.date.issued2010-09
dc.identifier.urihttp://hdl.handle.net/10945/5113
dc.descriptionApproved for public release; distribution is unlimiteden_US
dc.description.abstractElectronic scanning is the most desirable feature of state-of-the-art radar systems. With electronic scanning, it is possible to steer the main beam of an array antenna instantaneously into a desired direction where no mechanical mechanism is involved in the scanning process. Electronic scanning methods including phase scanning, time delay scanning, and frequency scanning have been used in various radar applications; however new and cheaper scanning methods are still being investigated. It is the purpose of this thesis to investigate an array configuration called frequency diverse array (FDA), which gives rise to range-, time-, and angle-dependent scanning without using phase shifters. In this thesis, first, frequency diverse array as a time-modulated array is presented. A general analysis and the theory of time domain scanning is given. Equations derived for a time-modulated frequency diverse array are simulated using MATLAB. Amplitude tapering and Fourier series expansion is implemented in MATLAB and the results are provided for comparison. Secondly, analysis of a frequency diverse array is presented. Time-, range-, and angle-dependent electronic scanning is achieved by applying a small amount of frequency shift among the antenna elements. The simulation results for radiation patterns with various excitation types are given. Lastly, the radar applications of FDA are considered. The received power from a target at a fixed range is simulated in MATLAB and the results are presented.en_US
dc.description.urihttp://archive.org/details/frequencydiverse109455113
dc.format.extentxx, 109 p. : col. ill. ;en_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.subject.lcshRadaren_US
dc.subject.lcshAntennasen_US
dc.subject.lcshAntenna arraysen_US
dc.titleFrequency diverse array radaren_US
dc.typeThesisen_US
dc.contributor.secondreaderSmith, Terry
dc.contributor.corporateNaval Postgraduate School (U.S.)
dc.contributor.departmentElectronic Warfare Systems Engineering
dc.description.serviceTurkish Navy authoren_US
dc.identifier.oclc671491848
etd.thesisdegree.nameM.S.en_US
etd.thesisdegree.levelMastersen_US
etd.thesisdegree.disciplineElectronic Warfare Systems Engineeringen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US
etd.verifiednoen_US


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