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Proceedings Paper

Ambiguity resolving in parameter estimation of a single near-field source with uniform circular array via clustering
Author(s): Xin Chen; Xuefeng Zhang; Zhen Liu; Xizhang Wei
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Paper Abstract

In order to resolve the phase ambiguity in parameter estimation of a high frequency source with uniform circular array (UCA), this paper presents an algorithm via clustering to obtain the source’s 3-D parameters (azimuth angle, elevation angle, and range) unambiguously. By computing the phase differences between centro-symmetric sensors and employing some mathematics, angle parameters of the source can be decoupled and be estimated. Then, a plural matrix is developed based on ambiguity search, where each column includes a plural constituted by real angle parameters. Further, the unambiguous angle parameters can be obtained by the means of clustering based on range. A one dimension MUSIC method is applied to estimate range parameter after the angle parameters have been obtained. Numerical examples are also presented to demonstrate the performance of the proposed algorithm.

Paper Details

Date Published: 29 August 2016
PDF: 5 pages
Proc. SPIE 10033, Eighth International Conference on Digital Image Processing (ICDIP 2016), 1003361 (29 August 2016); doi: 10.1117/12.2244847
Show Author Affiliations
Xin Chen, National Univ. of Defense Technology (China)
Xuefeng Zhang, Beijing Institution of Space Long March Vehicle (China)
Zhen Liu, National Univ. of Defense Technology (China)
Xizhang Wei, National Univ. of Defense Technology (China)


Published in SPIE Proceedings Vol. 10033:
Eighth International Conference on Digital Image Processing (ICDIP 2016)
Charles M. Falco; Xudong Jiang, Editor(s)

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