Beam-Space MUSIC DOA System Using Phase Shifter(Wireless Communication Technologies)
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概要
- 論文の詳細を見る
This paper presents a low cost and portable DOA (Direction Of Arrival) estimation system for surveillance using a modifed beamspace MUSIC (MUltiple Signal Classification) by a quasi-orthogonal multi-beam. This is instead of DFT processing and hardware system consisting of chip-sized phase shifters, a single ADC (Analogue to Digital Converter) and a single TR (TRanceiver) module for an antenna array. In the beamspace MUSIC, generated beampatterns have orthogonal properties. This proposed system cannot make such a beampattern due to the variable range limitation of phase shifter, then we use the quasi-orthogonal beam obtained by the calculation of correlation coefficient for beampattern. We demonstrate the proposed system using 4-element microstrip array antenna and chip-sized phase shifters. The DOA experiment in anechoic chamber confirms the proposed system performance.
- 社団法人電子情報通信学会の論文
- 2007-02-01
著者
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ARAI Hiroyuki
Division of Electrical & Computer Engineering Yokohama National University
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Nah Seung-wook
Division Of Electrical And Computer Engineering Yokohama National University
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Arai Hiroyuki
Division Of Electric And Computer Engineering Yokohama National University
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Arai Hiroyuki
Division Of Electrical And Computer Engineering Yokohama National University
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Arai Hiroyuki
Division of Brain Sciences, Department of Geriatrics and Gerontology, Institute of Development, Aging and Cancer, Tohoku University
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