FPGA-based Low Latency Inverse QRD Architecture for Adaptive Beamforming in Phased Array Radars

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dc.contributor.authorIrfan, Raafia
dc.contributor.authorRasheed, Haroon Ur
dc.contributor.authorToor, Waqas Ahmed
dc.coverage.issue3cs
dc.coverage.volume26cs
dc.date.accessioned2017-09-15T08:41:56Z
dc.date.available2017-09-15T08:41:56Z
dc.date.issued2017-09cs
dc.description.abstractThe main objective of this paper is to facilitate the adaptive beamforming which is one of the most challenging task in phased array radars receivers. Recursive least square (RLS) is considered as the most well suited adaptive algorithm for the applications where beamforming is mandatory, because of its good numerical properties and convergence rate. In this paper, some RLS variants are discussed and the most numerically suitable algorithm Inverse QRD is selected for efficient adaptive beamforming. A novel architecture for IQRD RLS is also presented, which offers low latency and low area occupation for Field Programmable Gate Array (FPGA) implementation. This approach reduces the computations by utilizing the standard pipelining methodology. Hence, efficient adder and multipliers and LUT based solution for square root and division, has highly enhanced the performance of the algorithm. The proposed IQRD RLS architecture has been coded in Verilog and analyze its performance in terms of throughput, hardware resources and efficiency.en
dc.formattextcs
dc.format.extent851-859cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2017 vol. 26, č. 3, s. 851-859. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2017.0851en
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/69985
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttps://www.radioeng.cz/fulltexts/2017/17_03_0851_0859.pdfcs
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectAdaptive filtersen
dc.subjectbeamformingen
dc.subjectphased-array radarsen
dc.subjectRecursive Least Square (RLS)en
dc.subjectInverse QR Decomposition (IQRD)en
dc.subjectField Programmable Gate Array (FPGA)en
dc.titleFPGA-based Low Latency Inverse QRD Architecture for Adaptive Beamforming in Phased Array Radarsen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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