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Title: An Efficient Source Localization Method in Presence of Multipath using Smart Antenna System
Authors: Ganguly, Saurav
Ghosh, Jayanta
Kumar, Puli Kishore
Mukhopadhyay, Mainak
Keywords: Array processing;DOA estimation;LOS;LS-CMA;Multipath transmission;Smart antennas
Issue Date: Dec-2020
Publisher: NISCAIR-CSIR, India
Abstract: In this paper, a MATLAB based smart antenna testbed that efficiently localizes the line-of-sight (LOS) source in the presence of multipath signals is developed. By exploiting the consistent amplitude nature of the LOS signal, a variant of Constant Modulus Algorithm, namely Multitarget-Least Square Constant Modulus Algorithm is employed to adapt and update the weights of the smart antenna for estimation of the direction-of-arrival (DOA) of the of the LOS and multipath interference signals. Performance is compared with the conventional and recently proposed algorithms in the same testbed with alike considerations. Simulation result shows that the proposed method of DOA estimation performs better in terms of probability of resolution and root mean square error.
Page(s): 1069-1073
ISSN: 0975-1084 (Online); 0022-4456 (Print)
Appears in Collections:JSIR Vol.79(12) [December 2020]

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