Experiments of DOA estimation by DBF array antenna at 2.6 GHz

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 p artially constructed by digital devices for the simplification of hardware and employs some techniques for improving the resolution. The system is eva luated through the DOA estimation by the MUSIC algorithm inside a radio ane choic chamber. As a result, we found that the proposed system estimates the DOA with the highest accuracy at which MUSIC algorithm can perform. Moreov er. this paper discusses the estimation errors. We also found that the esti mation error is particularly affected from the inaccurate element interval.