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

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dc.creator Kokumo, Emmanuel
dc.creator Maiseli, Baraka
dc.creator Abdalla, Abdi T
dc.date 2020-01-10T08:26:12Z
dc.date 2020-01-10T08:26:12Z
dc.date 2019
dc.date.accessioned 2021-05-03T13:17:01Z
dc.date.available 2021-05-03T13:17:01Z
dc.identifier 2507-7961
dc.identifier http://hdl.handle.net/20.500.11810/5359
dc.identifier.uri http://hdl.handle.net/20.500.11810/5359
dc.description Multipath 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.description This work was funded by the University of Dar es Salaam Competetive Projects, through the directorate of research, award number COICT-ETE 19048
dc.language en_US
dc.publisher University of Dar es Salaam
dc.subject COMPRESSIVE SENSING
dc.subject MULTIPATH GHOST
dc.subject MULTIPATH EXPLOITATION
dc.subject PATH LOSS
dc.subject PATH LOSS COMPENSATOR
dc.subject THROUGH THE WALL RADAR IMAGING
dc.title Targets Interaction in Through-The-Wall Radars under Path-Loss Compensated Multipath Exploitation-Based Model for Sparse Image Reconstruction
dc.type Journal Article, Peer Reviewed


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