NDLI: Performance analysis of biologically inspired coupled circular antenna array

Content Provider	IEEE Xplore Digital Library
Author	Akcakaya, M. Muravchik, C.H. Nehorai, A.
Copyright Year	2011
Description	Author affiliation: Preston M. Green Department of Electrical and Systems Engineering, Washington University in St. Louis, Missouri, USA (Akcakaya, M.; Nehorai, A.) \|\| LEICI, Departamento Electrotecnia, Universidad Nacional de La Plata, Argentina (Muravchik, C.H.)
Abstract	We propose to design a small-size circular antenna array inspired by the female Ormia ochracea's coupled ears and demonstrate its high direction of arrival (DOA) estimation performance. The female Ormia is able to locate male crickets' calls accurately, for reproduction purposes, despite the small distance between its ears compared with the incoming wave-length. This phenomenon has been explained by the mechanical coupling between the Ormia's ears, modeled by a pair of differential equations. In this paper, we first solve the differential equations governing the Ormia ochracea's ear response, and convert the response to the pre-specified radio frequencies. Using the converted response, we implement the biologically inspired coupling as a multi-input multi-output filter on a uniform circular antenna array output, and compute the mean-square angular error bound on the 3-D localization accuracy. With numerical examples we demonstrate the advantages of the coupling effect.
Starting Page	1530
Ending Page	1533
File Size	270298
Page Count	4
File Format	PDF
ISBN	9781424495627
ISSN	19471491
e-ISBN	9781424495634
DOI	10.1109/APS.2011.5996588
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-07-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Arrays Antenna arrays Ear Couplings Antenna measurements Direction of arrival estimation
Content Type	Text
Resource Type	Article

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