dc.contributor.advisor | Blunt, Shannon | |
dc.contributor.author | Metcalf, Justin | |
dc.date.accessioned | 2012-06-03T16:23:56Z | |
dc.date.available | 2012-06-03T16:23:56Z | |
dc.date.issued | 2011-12-31 | |
dc.date.submitted | 2011 | |
dc.identifier.other | http://dissertations.umi.com/ku:11871 | |
dc.identifier.uri | http://hdl.handle.net/1808/9813 | |
dc.description.abstract | This thesis presents various detection strategies and intercept metrics to evaluate and design an intra-pulse radar-embedded communication system. This system embeds covert communication symbols in masking interference provided by the reflections of a pulsed radar emission. This thesis considers the case where the communicating device is a transponder or tag present in an area that is illuminated by a radar. The radar is considered to be the communication receiver. As with any communication system, performance (as measured by reliability and data rate) should be maximized between the tag and radar. However, unlike conventional communication systems, the symbols here should also have a low-probability of intercept (LPI). This thesis examines the trade-offs associated with the design of a practical radar-embedded communication system. A diagonally-loaded decorrelating receiver is developed and enhanced with a second stage based on the Neyman-Pearson criterion. For a practical system, the communication symbols will likely encounter multipath. The tag may then use a pre-distortion strategy known as time-reversal to improve the signal-to-noise ratio at the radar receiver thereby enhancing communication performance. The development of several intercept metrics are shown and the logic behind the design evolutions are explained. A formal analysis of the processing gain by the desired receiver relative to the intercept receivers is given. Finally, simulations are shown for all cases, to validate the design metrics. | |
dc.format.extent | 98 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 | Electrical engineering | |
dc.subject | Communications | |
dc.subject | Detection | |
dc.subject | Low probability of intercept | |
dc.subject | Radar embedded communications | |
dc.subject | Time reversal | |
dc.title | Detection Strategies and Intercept Metrics for Intra-Pulse Radar-Embedded Communications | |
dc.type | Thesis | |
dc.contributor.cmtemember | Perrins, Erik | |
dc.contributor.cmtemember | Prescott, Glenn | |
dc.thesis.degreeDiscipline | Electrical Engineering & Computer Science | |
dc.thesis.degreeLevel | M.S. | |
kusw.oastatus | na | |
kusw.oapolicy | This item does not meet KU Open Access policy criteria. | |
kusw.bibid | 7643367 | |
dc.rights.accessrights | openAccess | |