Targets Interaction in Through-The-Wall Radars under Path-Loss Compensated Multipath Exploitation-Based Model for Sparse Image Reconstruction

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dc.creatorKokumo, Emmanuel
dc.creatorMaiseli, Baraka
dc.creatorAbdalla, Abdi T
dc.date2020-01-10T08:26:12Z
dc.date2020-01-10T08:26:12Z
dc.date2019
dc.date.accessioned2021-05-03T13:17:01Z
dc.date.available2021-05-03T13:17:01Z
dc.descriptionMultipath caused by reflections from interior walls of buildings has been a long-standing challenge that affects through-the-wall radar imaging. Multipath creates ghost images that introduce confusion when detecting desired targets. Traditionally, multipath exploitation techniques under the compressive sensing framework have widely been applied to address the challenge. However, the multipath component emanating from target-to-target interactions has not been considered–a consequence that may, under multiple target scenarios, lead to incorrect image interpretation. Besides, far targets experience more attenuation due to free space path loss, hence resulting into target undetectability. This study proposes a signal model, based on multipath exploitation techniques, by designing a sensing matrix that incorporates multipath returns due to target-to-target interaction and path loss compensation. The study, in addition, proposes the path loss compensator that, if integrated into the proposed signal model, reduces path loss effects. Simulation results show that the Signal to Clutter Ratio and the Relative Clutter Peak improved by 4.9 dB and 1.9 dB, respectively, compared with the existing model
dc.descriptionThis work was funded by the University of Dar es Salaam Competetive Projects, through the directorate of research, award number COICT-ETE 19048
dc.identifier2507-7961
dc.identifierhttp://hdl.handle.net/20.500.11810/5359
dc.identifier.urihttp://hdl.handle.net/20.500.11810/5359
dc.languageen_US
dc.publisherUniversity of Dar es Salaam
dc.subjectCOMPRESSIVE SENSING
dc.subjectMULTIPATH GHOST
dc.subjectMULTIPATH EXPLOITATION
dc.subjectPATH LOSS
dc.subjectPATH LOSS COMPENSATOR
dc.subjectTHROUGH THE WALL RADAR IMAGING
dc.titleTargets Interaction in Through-The-Wall Radars under Path-Loss Compensated Multipath Exploitation-Based Model for Sparse Image Reconstruction
dc.typeJournal Article, Peer Reviewed

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Department of Electronics and Telecommunications Engineering