Mixed Far-Field and Near-Field Source Localization Algorithm via Sparse Subarrays
Joint Authors
Xie, Jian
Song, Jiaqi
Tao, Haihong
Sun, Chenwei
Source
International Journal of Antennas and Propagation
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-03-26
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
Based on a dual-size shift invariance sparse linear array, this paper presents a novel algorithm for the localization of mixed far-field and near-field sources.
First, by constructing a cumulant matrix with only direction-of-arrival (DOA) information, the proposed algorithm decouples the DOA estimation from the range estimation.
The cumulant-domain quarter-wavelength invariance yields unambiguous estimates of DOAs, which are then used as coarse references to disambiguate the phase ambiguities in fine estimates induced from the larger spatial invariance.
Then, based on the estimated DOAs, another cumulant matrix is derived and decoupled to generate unambiguous and cyclically ambiguous estimates of range parameter.
According to the coarse range estimation, the types of sources can be identified and the unambiguous fine range estimates of NF sources are obtained after disambiguation.
Compared with some existing algorithms, the proposed algorithm enjoys extended array aperture and higher estimation accuracy.
Simulation results are given to validate the performance of the proposed algorithm.
American Psychological Association (APA)
Song, Jiaqi& Tao, Haihong& Xie, Jian& Sun, Chenwei. 2018. Mixed Far-Field and Near-Field Source Localization Algorithm via Sparse Subarrays. International Journal of Antennas and Propagation،Vol. 2018, no. 2018, pp.1-15.
https://search.emarefa.net/detail/BIM-1168437
Modern Language Association (MLA)
Song, Jiaqi…[et al.]. Mixed Far-Field and Near-Field Source Localization Algorithm via Sparse Subarrays. International Journal of Antennas and Propagation No. 2018 (2018), pp.1-15.
https://search.emarefa.net/detail/BIM-1168437
American Medical Association (AMA)
Song, Jiaqi& Tao, Haihong& Xie, Jian& Sun, Chenwei. Mixed Far-Field and Near-Field Source Localization Algorithm via Sparse Subarrays. International Journal of Antennas and Propagation. 2018. Vol. 2018, no. 2018, pp.1-15.
https://search.emarefa.net/detail/BIM-1168437
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1168437