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

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dc.contributor.authorKokumo, Emmanuel
dc.contributor.authorMaiseli, Baraka
dc.contributor.authorAbdalla, Abdi T
dc.date.accessioned2020-01-10T08:26:12Z
dc.date.available2020-01-10T08:26:12Z
dc.date.issued2019
dc.description.abstractMultipath 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 modelen_US
dc.description.sponsorshipThis work was funded by the University of Dar es Salaam Competetive Projects, through the directorate of research, award number COICT-ETE 19048en_US
dc.identifier.issn2507-7961
dc.identifier.urihttp://hdl.handle.net/20.500.11810/5359
dc.language.isoen_USen_US
dc.publisherUniversity of Dar es Salaamen_US
dc.subjectCOMPRESSIVE SENSINGen_US
dc.subjectMULTIPATH GHOSTen_US
dc.subjectMULTIPATH EXPLOITATIONen_US
dc.subjectPATH LOSSen_US
dc.subjectPATH LOSS COMPENSATORen_US
dc.subjectTHROUGH THE WALL RADAR IMAGINGen_US
dc.titleTargets Interaction in Through-The-Wall Radars under Path-Loss Compensated Multipath Exploitation-Based Model for Sparse Image Reconstructionen_US
dc.typeJournal Article, Peer Revieweden_US
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