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Mapping of Ice Sheet Deep Layers and Fast Outlet Glaciers with Multi-Channel-High-Sensitivity Radar
dc.contributor.advisor | Gogineni, Sivaprasad | |
dc.contributor.author | Li, Jilu | |
dc.date.accessioned | 2010-01-07T23:34:52Z | |
dc.date.available | 2010-01-07T23:34:52Z | |
dc.date.issued | 2009-12-29 | |
dc.date.submitted | 2009 | |
dc.identifier.other | http://dissertations.umi.com/ku:10690 | |
dc.identifier.uri | http://hdl.handle.net/1808/5666 | |
dc.description.abstract | This dissertation discusses the waveform design, the development of SAR and clutter reduction algorithms for MCRDS radars that are developed at CReSIS to map the ice-sheet bed, deep internal layers and fast-flowing outlet glaciers. It is verified with survey data that the sidelobe level of the designed tapered linear chirp waveform is lower than -60dB for reliable detection of deep ice layers close to the bed. The SAR processing is implemented in f-k domain with motion compensation. Very weak echoes from the deepest parts of Jakobshavn channel are detected for the first time using large synthetic aperture length. A beam-spaced clutter-reduction algorithm is developed to reduce the distributed across-track ice clutter encountered in sounding fast outlet glaciers by estimating the clutter power as a function of depth. On average this method is able to reduce ice clutter by 10dB over Hanning weighting with the MCRDS radar's multi-channel data. | |
dc.format.extent | 200 pages | |
dc.language.iso | EN | |
dc.publisher | University of Kansas | |
dc.rights | This item is protected by copyright and unless otherwise specified the copyright of this thesis/dissertation is held by the author. | |
dc.subject | Electronics and electrical engineering | |
dc.subject | Remote sensing | |
dc.subject | Airborne radar | |
dc.subject | Fast outlet glaciers | |
dc.subject | Ice clutter reduction | |
dc.subject | Ice sheet mapping | |
dc.subject | Sar processing | |
dc.subject | Sidelobe suppression | |
dc.title | Mapping of Ice Sheet Deep Layers and Fast Outlet Glaciers with Multi-Channel-High-Sensitivity Radar | |
dc.type | Dissertation | |
dc.contributor.cmtemember | Leuschen, Carl | |
dc.contributor.cmtemember | Rodriguez-Morales, Fernando | |
dc.contributor.cmtemember | Seguin, Sarah | |
dc.contributor.cmtemember | Braaten, David | |
dc.thesis.degreeDiscipline | Electrical Engineering & Computer Science | |
dc.thesis.degreeLevel | Ph.D. | |
kusw.oastatus | na | |
kusw.oapolicy | This item does not meet KU Open Access policy criteria. | |
kusw.bibid | 7078655 | |
dc.rights.accessrights | openAccess |
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Dissertations [4889]
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Engineering Dissertations and Theses [1055]