dc.contributor.advisor | Blunt, Shannon D | |
dc.contributor.author | Zook, Garrett | |
dc.date.accessioned | 2019-01-02T20:39:09Z | |
dc.date.available | 2019-01-02T20:39:09Z | |
dc.date.issued | 2018-12-31 | |
dc.date.submitted | 2018 | |
dc.identifier.other | http://dissertations.umi.com/ku:16183 | |
dc.identifier.uri | http://hdl.handle.net/1808/27612 | |
dc.description.abstract | Two possible radar application spaces are explored through the exploitation of highdimensional nonrecurrent FM-noise waveforms. The first involving a simultaneous dual-polarized emission scheme that provides good separability with respect to co- and cross-polarized terms and the second mimicking the passive actuation of the human eye with a MIMO emission. A waveform optimization scheme denoted as pseudorandom optimized (PRO) FM has been shown to generate FM-noise radar waveforms that are amenable to high power transmitters. Each pulse is generated and optimized independently and possesses a non-repeating FM-noise modulation structure. Because of this the range sidelobes of each pulse are unique and thus are effectively suppressed given enough coherent integration. The PRO-FM waveform generation scheme is used to create two independent sets of FM-noise waveforms to be incorporated into a simultaneous dual-polarized emission; whereby two independent PRO-FM waveforms will be transmitted simultaneously from orthogonal polarization channels. This effectively creates a polarization diverse emission. The random nature of these waveforms also reduce cross-correlation effects that occur during simultaneous transmission on both channels. This formulation is evaluated using experimental open-air measurements to demonstrate the effectiveness of this high-dimensional emission. This research aims to build upon previous work that has demonstrated the ability to mimic fixational eye movements (FEM) employed by the human eye. To implement FEM on a radar system a MIMO capable digital array must be utilized in conjunction with spatial modulation beamforming. Successful imitation of FEM will require randomized fast-time beamsteering from a two-dimensional array. The inherent randomness associated with FEM will be paired with the PRO-FM waveforms to create an emission possessing randomness in the space and frequency domains, called the FEM radar (FEMR). Unlike traditional MIMO, FEMR emits a coherent and time varying beam. Simulations will show the inherent enhancement to spatial resolution in two-dimensional space (azimuth and elevation) relative to standard beamforming using only the matched filter to process returns. | |
dc.format.extent | 159 pages | |
dc.language.iso | en | |
dc.publisher | University of Kansas | |
dc.rights | Copyright held by the author. | |
dc.subject | Electrical engineering | |
dc.subject | FM Noise | |
dc.subject | MIMO | |
dc.subject | polarization | |
dc.subject | Radar | |
dc.subject | Waveform diversity | |
dc.title | Applications of FM Noise Radar Waveforms: Spatial Modulation and Polarization Diversity | |
dc.type | Thesis | |
dc.contributor.cmtemember | Allen, Christopher | |
dc.contributor.cmtemember | Stiles, James | |
dc.thesis.degreeDiscipline | Electrical Engineering & Computer Science | |
dc.thesis.degreeLevel | M.S. | |
dc.identifier.orcid | | |
dc.rights.accessrights | openAccess | |