Bruton, Leonard T.Gunaratne, Thushara Kanachana2008-05-152008-05-152006Gunaratne, T. K. (2006). Beamforming of temporally broadband bandpass plane waves using 2D FIR trapezoidal filters (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/23159http://hdl.handle.net/1880/46453Bibliography: p. 151-156Two new discrete-domain methods are proposed for the beamforming of two-dimens­ional temporally broadband bandpass plane waves using two-dimensional spatio-temporal finite impulse response filters with novel trapezoidal-shaped passbands. The first method employs a complex-coefficient two-dimensional finite impulse re­sponse filter structure having an asymmetric trapezoidal-shaped passband at base­band and achieves the minimum possible temporal sampling rate for a given tem­poral bandwidth. The second method employs a real-coefficient polyphase two-dimensional finite impulse response filter structure having a rectangularly-symmetric double-trapezoidal-shaped passband and requires 50% less computational complexity for the same temporal bandwidth. Experimental results have confirmed that both methods are equally capable of enhancing the desired two-dimensional temporally broadband bandpass plane waves according to their directions of arrival under severe co-channel interference and multipath fading.xviii, 163 leaves : ill. ; 30 cm.engUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.master thesis10.11575/PRISM/23159