An Efficient 2-D DOA Estimation for a Cylindrical Conformal Array with Unknown Mutual Coupling
Joint Authors
Source
International Journal of Antennas and Propagation
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-10-04
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
The limited space of a conformal array may lead to a serious mutual coupling effect, which will significantly affect the performance of direction of arrival (DOA) estimation algorithms.
In this paper, an efficient 2-D direction finding method is developed in the presence of unknown mutual coupling for the uniform cylindrical conformal array (CCA).
To avoid the time-consuming two-dimensional spectral peak searching, the 2-D DOA estimation is decoupled and divided into two 1-D DOA estimations.
Elevation is first estimated based on a subarray estimation of signal parameters via rotation invariant technique (ESPRIT), and then azimuth is estimated based on the rank reduction (RARE) method by using the elevation estimation result.
Consequently, the mutual coupling coefficients can be estimated after getting the DOA estimates.
The proposed method can well calibrate the mutual coupling effect of a cylindrical array with a low computational complexity.
The final simulation results corroborate our analysis.
American Psychological Association (APA)
Liu, Chao& Yin, Shunian. 2018. An Efficient 2-D DOA Estimation for a Cylindrical Conformal Array with Unknown Mutual Coupling. International Journal of Antennas and Propagation،Vol. 2018, no. 2018, pp.1-8.
https://search.emarefa.net/detail/BIM-1168653
Modern Language Association (MLA)
Liu, Chao& Yin, Shunian. An Efficient 2-D DOA Estimation for a Cylindrical Conformal Array with Unknown Mutual Coupling. International Journal of Antennas and Propagation No. 2018 (2018), pp.1-8.
https://search.emarefa.net/detail/BIM-1168653
American Medical Association (AMA)
Liu, Chao& Yin, Shunian. An Efficient 2-D DOA Estimation for a Cylindrical Conformal Array with Unknown Mutual Coupling. International Journal of Antennas and Propagation. 2018. Vol. 2018, no. 2018, pp.1-8.
https://search.emarefa.net/detail/BIM-1168653
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1168653