Advances in Synthetic Aperture Radar from a Wavenumber Perspective

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dc.contributor.advisorYeary, Mark
dc.contributor.authorDower, William
dc.contributor.committeeMemberBasara, Jeffrey
dc.contributor.committeeMemberFulton, Caleb
dc.contributor.committeeMemberGoodman, Nathan
dc.contributor.committeeMemberRigling, Brian
dc.contributor.committeeMemberSigmarsson, Hjalti
dc.date.accessioned2017-12-05T16:35:46Z
dc.date.available2017-12-05T16:35:46Z
dc.date.issued2017-12-15
dc.date.manuscript2017-11-20
dc.description.abstractThis dissertation examines the wavenumber domain of Synthetic Aperture Radar (SAR) images. This domain is the inverse Fourier transform domain of a SAR image. The dissertation begins with the radar receiver's signal model and develops equations describing the wavenumber domain of a SAR image produced by a generalized bistatic and monostatic SAR system. Then, closed form expressions for bistatic synthetic aperture radar spatial resolution of a generalized system from the wavenumber domain are developed. These spatial resolution equations have not previously appeared in the literature. From these equations, significant resolution is found in both range and cross-range forecasting a forward-scatter bistatic SAR image when the elevation angles of each bistatic platform are significantly different. Next, wavenumber and time domain image formation algorithms are discussed. Developed within this dissertation is a wavenumber preprocessing method that increases the speed of the Back Projection Algorithm (BPA). This preprocessing method takes advantage of deramped SAR radar returns and their polar wavenumber format. This new algorithm is called the Fast Decimated Wavenumber Back Projection Algorithm (FDWBPA). Matlab functions are included to implement this algorithm, simulate bistatic SAR images and process the data from anechoic chamber tests demonstrating forward scatter resolution.en_US
dc.identifier.urihttps://hdl.handle.net/11244/52722
dc.languageen_USen_US
dc.subjectsynthetic aperture radaren_US
dc.subjectimage resolutionen_US
dc.subjectback projectionen_US
dc.subjectbistatic radaren_US
dc.thesis.degreePh.D.en_US
dc.titleAdvances in Synthetic Aperture Radar from a Wavenumber Perspectiveen_US
ou.groupCollege of Engineering::School of Electrical and Computer Engineeringen_US
shareok.orcid0000-0002-2710-8711en_US

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