Open AccessMultiple near‐field source localisation with uniform circular array
Author(s) -
Wu Yuntao,
Wang Hai,
Zhang Yanbin,
Wang Yang
Publication year - 2013
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2013.2012
Subject(s) - circular buffer , range (aeronautics) , subspace topology , algorithm , property (philosophy) , multiple signal classification , matrix (chemical analysis) , mathematics , near and far field , field (mathematics) , computer science , acoustics , geometry , optics , physics , mathematical analysis , engineering , telecommunications , antenna (radio) , pure mathematics , programming language , philosophy , materials science , epistemology , composite material , aerospace engineering
A subspace‐based method is considered to deal with multiple near‐field source localisation with a uniform circular array. The property of the centro‐symmetric circular array configuration is employed and a matrix which is free of range is constructed. Then, the two‐dimensional (2D)‐MUSIC method is used to search the 2D angles after the range parameters are separated. After the 2D angles are estimated, a 1D‐MUSIC method is used to estimate the corresponding ranges when the estimated 2D angles are substituted into the original form of the received data. It is shown that the proposed method can deal with the case of multiple near‐field sources, but with lower computational complexity than that of the available 3D MUSIC method; moreover, the 3D parameters are automatically paired.