Experiments of DOA Estimation by DBF Array Antenna at 2.6 GHz

Kohei MORI  Yuki INOUE  Koichi ICHIGE  Hiroyuki ARAI  

IEICE TRANSACTIONS on Communications   Vol.E84-B   No.7   pp.1871-1875
Publication Date: 2001/07/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section LETTER (Special Issue on Adaptive Array Antenna Techniques for Advanced Wireless Communications)
DBF array antenna,  DOA estimation,  MUSIC algorithm,  estimation error,  

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This paper proposes a 2.6 GHz low cost DBF array antenna system and reports its evaluation based on our experimental results. The proposed system is partially constructed by digital devices for the simplification of hardware, and employs some techniques for improving the resolution. The system is evaluated through the DOA estimation by the MUSIC algorithm inside a radio anechoic chamber. As a result, we found that the proposed system estimates the DOA with the highest accuracy at which MUSIC algorithm can perform. Moreover, this paper discusses the estimation errors. We also found that the estimation error is particularly affected from the inaccurate element interval.