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Array configuration optimization using an objective function for accurate DOA estimation

Authors
Byun, G.Joo, J.Kim, K.Seo, S.Kim, S.Choo, H.
Issue Date
2013
Keywords
Direction finding; DOA estimation
Citation
Asia-Pacific Microwave Conference Proceedings, APMC, pp.666 - 668
Journal Title
Asia-Pacific Microwave Conference Proceedings, APMC
Start Page
666
End Page
668
URI
https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/17321
DOI
10.1109/APMC.2013.6694899
ISSN
0000-0000
Abstract
This paper proposes a deterministic method of array configurations using an objective function for accurate DOA estimation in a wide frequency range. The objective function is defined to describe appropriate baseline distributions of an 8-elemnt circular array for the max-min frequency ratio of 6:1 and used to finds the most similar distributions among a number of random array configurations. The resulting array configuration obtained from the proposed method is evaluated by root mean square error (RMSE) and ambiguity in comparison with a uniform circular array (UCA). The results demonstrate that the proposed method is efficient for achieving accurate DOA estimation in a wide frequency range. © 2013 IEEE.
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