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Real-time 2-d fir trapezoidal digital filters for 2.4 ghz aperture receiver applications

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dc.contributor.author Ariyarathna, V
dc.contributor.author Coutinho, VA
dc.contributor.author Pulipati, S
dc.contributor.author Madanayake, A
dc.contributor.author Wijesekara, RT
dc.contributor.author Edussooriya, CUS
dc.contributor.author Bruton, LT
dc.contributor.author Gunaratne, TK
dc.contributor.author Cintra, RJ
dc.contributor.editor Chathuranga, D
dc.date.accessioned 2022-08-24T08:28:49Z
dc.date.available 2022-08-24T08:28:49Z
dc.date.issued 2018-05
dc.identifier.citation V. Ariyarathna et al., "Real-Time 2-D FIR Trapezoidal Digital Filters for 2.4 GHz Aperture Receiver Applications," 2018 Moratuwa Engineering Research Conference (MERCon), 2018, pp. 350-355, doi: 10.1109/MERCon.2018.8421921. en_US
dc.identifier.uri http://dl.lib.uom.lk/handle/123/18704
dc.description.abstract This paper presents the implementation of a twodimensional (2-D) finite-impulse-response (FIR) trapezoidal filter based beamforming array receiver. A 2.4 GHz 16-element receivemode IQ array is designed and used for physically measuring the beam patterns corresponding to 2-D FIR trapezoidal filters. The 16-element beamformer is implemented using the reconfigurable open architecture computing hardware version-2 (ROACH-2) field programmable gate array (FPGA) platform to perform analog to digital conversion and digital signal processing. The 2-D FIR trapezoidal filter is designed as a 16-spatial input 32- tap filter and is implemented targeting the ROACH-2’s Xilinx Virtex 6 (sx475t) FPGA chip as a filter-and-sum architecture. The receiver array is precisely rotated (keeping the transmitter fixed) to digitally measure the received energy by integrating the instantaneous power of the output of the 2-D FIR trapezoidal filter for each angle of reception. The main lobe of the measured beam pattern is well aligned with the simulated beam pattern, and the highest measured side-lobe level is −17.8 dB. en_US
dc.language.iso en en_US
dc.publisher IEEE en_US
dc.relation.uri https://ieeexplore.ieee.org/document/8421921 en_US
dc.subject Broadband beamforming en_US
dc.subject 2-D FIR trapezoidal filters en_US
dc.subject 2.4 GHz aperture receivers en_US
dc.subject FPGAs en_US
dc.subject array pattern measurements en_US
dc.title Real-time 2-d fir trapezoidal digital filters for 2.4 ghz aperture receiver applications en_US
dc.type Conference-Full-text en_US
dc.identifier.faculty Engineering en_US
dc.identifier.department Engineering Research Unit, University of Moratuwa en_US
dc.identifier.year 2018 en_US
dc.identifier.conference 2018 Moratuwa Engineering Research Conference (MERCon) en_US
dc.identifier.place Moratuwa, Sri Lanka en_US
dc.identifier.pgnos pp. 350-355 en_US
dc.identifier.proceeding Proceedings of 2018 Moratuwa Engineering Research Conference (MERCon) en_US
dc.identifier.email arjuna@uakron.edu en_US
dc.identifier.email rjdsc@de.ufpe.br en_US
dc.identifier.email chamira@ent.mrt.ac.lk en_US
dc.identifier.email brutonlen@gmail.com en_US
dc.identifier.email gunaratnet@nrc.ca en_US
dc.identifier.doi 10.1109/MERCon.2018.8421921 en_US


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