文献类型：期刊文献

英文题名：Near-field source localisation using a velocity sensor array

作者：Liu, Zhaoting[1];Pan, Zhangxin[1]

机构：[1]Shaoxing Univ, Dept Elect Engn, Shaoxing 312000, Zhejiang, Peoples R China

年份：2013

卷号：7

期号：7

起止页码：727

外文期刊名：IET RADAR SONAR AND NAVIGATION

收录：SCI-EXPANDED(收录号：WOS:000323565100002)、、EI(收录号：20133716727640)、Scopus(收录号：2-s2.0-84883376488)、WOS

基金：We thank the two anonymous reviewers for their constructive comments. This work was supported by the Scientific Research Fund of Zhejiang Provincial Education Department under grant no. Y201225848.

语种：英文

外文关键词：Acoustic wave velocity

外文摘要：This study presents a new algorithm for near-field source localisation by using a uniform linear array consisting of velocity-sensor pairs (VSPs). Two schemes are used for range and direction of arrival (DOA) estimation in the proposed algorithm. The first one exploits the acoustic velocity vector field's two Cartesian components and the triangular location relationship among the near-field sources and the VSPs. The resulting range and DOA estimates are ambiguity-free, regardless of the inter-sensor spacing. Whereas the second scheme uses the so-called electric angles to determine the ranges and DOAs. Although the derived estimates may be ambiguous in the case of the inter-sensor spacing larger than a quarter wavelength, this ambiguity can be removed by using the estimates obtained in the first scheme. Therefore the proposed algorithm can offer high estimation accuracy by increasing inter-sensor spacing (because of array aperture extension). In addition, the proposed algorithm does not require multidimensional search, pairing parameters or high-order statistics, hence, has a low computational complexity.