LOCALIZATION FOR MIXED NEAR-FIELD AND FAR-FIELD SOURCES BY INTERLACED NESTED ARRAY

In this paper, a localization algorithm for mixed near-field and far-field sources by an interlaced nested array is proposed. The fourth-order cumulants (FOCs) of the received data are used to construct a FOC matrix, by which the angles of all signals can be estimated. Then, an effective method is d...

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Bibliographic Details
Published inProgress in electromagnetics research M Pier M Vol. 82; pp. 107 - 115
Main Authors Liu, Sheng, Zhao, Jing, Yuan, Ziqing, Zhou, Ren, Xiao, Min, Lu, Chunyan
Format Journal Article
LanguageEnglish
Published Electromagnetics Academy 01.01.2019
Subjects
Algorithms
Antenna arrays
Design and construction
China
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ISSN1937-8726
1937-8726
DOI10.2528/PIERM19042501

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Summary:In this paper, a localization algorithm for mixed near-field and far-field sources by an interlaced nested array is proposed. The fourth-order cumulants (FOCs) of the received data are used to construct a FOC matrix, by which the angles of all signals can be estimated. Then, an effective method is driven to separate the directions of arrival (DOAs) of near-field and far-field sources without extreme value search. The ranges of the near-field sources can be estimated by one-dimensional (1D) search. Compared with existing nested array-based algorithms, the proposed algorithm can distinguish more sources and has higher estimation accuracy. Some simulation results are shown to certify the superiority of proposed algorithm.
ISSN:1937-8726
1937-8726
DOI:10.2528/PIERM19042501