Sidelobe Suppression Featuring the Phase Coherence Factor in 3-D Through-the-Wall Radar Imaging

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dc.contributor.authorAnwar, Nik Syahrim Nik
dc.contributor.authorAbdullah, Mohd Zaid
dc.coverage.issue4cs
dc.coverage.volume25cs
dc.date.accessioned2017-01-27T06:24:09Z
dc.date.available2017-01-27T06:24:09Z
dc.date.issued2016-12cs
dc.description.abstractThrough-the-Wall Radar Imaging (TWRI) could be performed by beamforming of the signals from an array of ultrawideband (UWB) antennas. Preferably the imaging is done in 3-D so that both the position and the height of the target be revealed. This is possible with planar array antenna geometry. However, implementing this technique that fulfills Nyquist criterion leads to a large number of antennas while sparse array suffers from an increase of the sidelobe level. In this work, the Phased Coherence Factor (PCF) is applied to conventional delay and sum (DAS) beamformer to suppress the sidelobe of a sparse planar antenna array. The performance of the proposed technique is experimentally evaluated in terms of the target-to-clutter ratio (TCR), and the separation resolution. It is discovered that PCF is effective in reducing the sidelobe’s artifacts, resulting in TCR of greater than 20 dB and a separation resolution of 20 cm at 2.5 m range.en
dc.formattextcs
dc.format.extent730-740cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2016 vol. 25, č. 4, s. 730-740. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2016.0730en
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/63758
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttp://www.radioeng.cz/fulltexts/2016/16_04_0730_0740.pdfcs
dc.rightsCreative Commons Attribution 3.0 Unported Licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en
dc.subjectThrough-wallen
dc.subjectradaren
dc.subjectsidelobeen
dc.subjectsuppressionen
dc.subjectsparse arrayen
dc.subjectphase coherence factoren
dc.titleSidelobe Suppression Featuring the Phase Coherence Factor in 3-D Through-the-Wall Radar Imagingen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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