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Direction-of-Arrival Estimation for Coprime Array Using Compressive Sensing Based Array Interpolation
Joint Authors
Deng, Weibo
Liu, Aihua
Zhang, Xin
Yang, Qiang
Source
International Journal of Antennas and Propagation
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-02-16
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
A method of direction-of-arrival (DOA) estimation using array interpolation is proposed in this paper to increase the number of resolvable sources and improve the DOA estimation performance for coprime array configuration with holes in its virtual array.
The virtual symmetric nonuniform linear array (VSNLA) of coprime array signal model is introduced, with the conventional MUSIC with spatial smoothing algorithm (SS-MUSIC) applied on the continuous lags in the VSNLA; the degrees of freedom (DoFs) for DOA estimation are obviously not fully exploited.
To effectively utilize the extent of DoFs offered by the coarray configuration, a compressing sensing based array interpolation algorithm is proposed.
The compressing sensing technique is used to obtain the coarse initial DOA estimation, and a modified iterative initial DOA estimation based interpolation algorithm (IMCA-AI) is then utilized to obtain the final DOA estimation, which maps the sample covariance matrix of the VSNLA to the covariance matrix of a filled virtual symmetric uniform linear array (VSULA) with the same aperture size.
The proposed DOA estimation method can efficiently improve the DOA estimation performance.
The numerical simulations are provided to demonstrate the effectiveness of the proposed method.
American Psychological Association (APA)
Liu, Aihua& Yang, Qiang& Zhang, Xin& Deng, Weibo. 2017. Direction-of-Arrival Estimation for Coprime Array Using Compressive Sensing Based Array Interpolation. International Journal of Antennas and Propagation،Vol. 2017, no. 2017, pp.1-10.
https://search.emarefa.net/detail/BIM-1158840
Modern Language Association (MLA)
Liu, Aihua…[et al.]. Direction-of-Arrival Estimation for Coprime Array Using Compressive Sensing Based Array Interpolation. International Journal of Antennas and Propagation No. 2017 (2017), pp.1-10.
https://search.emarefa.net/detail/BIM-1158840
American Medical Association (AMA)
Liu, Aihua& Yang, Qiang& Zhang, Xin& Deng, Weibo. Direction-of-Arrival Estimation for Coprime Array Using Compressive Sensing Based Array Interpolation. International Journal of Antennas and Propagation. 2017. Vol. 2017, no. 2017, pp.1-10.
https://search.emarefa.net/detail/BIM-1158840
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1158840