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Efficient Two-Dimensional Direction Finding via Auxiliary-Variable Manifold Separation Technique for Arbitrary Array Structure
Joint Authors
Hua, Guang
Hong, Wei
Zhu, Xi-Cheng
Wu, Jiudong
Zhou, Hou-Xing
Source
Mathematical Problems in Engineering
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-03-03
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
A polynomial rooting direction of arrival (DOA) algorithm for multiple plane waves incident on an arbitrary array structure that combines the multipolynomial resultants and matrix computations is proposed in this paper.
Firstly, a new auxiliary-variable manifold separation technique (AV-MST) is used to model the steering vector of arbitrary array structure as the product of a sampling matrix (dependent only on the array structure) and two Vandermonde-structured wavefield coefficient vectors (dependent on the wavefield).
Then the propagator operator is calculated and used to form a system of bivariate polynomial equations.
Finally, the automatically paired azimuth and elevation estimates are derived by polynomial rooting.
The presented algorithm employs the concept of auxiliary-variable manifold separation technique which requires no sector by sector array interpolation and thus does not suffer from any mapping errors.
In addition, the new algorithm does not need any eigenvalue decomposition of the covariance matrix and exhausted search over the two-dimensional parameter space.
Moreover, the algorithm gives automatically paired estimates, thus avoiding the complex pairing procedure.
Therefore, the proposed algorithm shows low computational complexity and high robustness performance.
Simulation results are shown to validate the effectiveness of the proposed method.
American Psychological Association (APA)
Hua, Guang& Wu, Jiudong& Zhu, Xi-Cheng& Zhou, Hou-Xing& Hong, Wei. 2015. Efficient Two-Dimensional Direction Finding via Auxiliary-Variable Manifold Separation Technique for Arbitrary Array Structure. Mathematical Problems in Engineering،Vol. 2015, no. 2015, pp.1-7.
https://search.emarefa.net/detail/BIM-1074624
Modern Language Association (MLA)
Hua, Guang…[et al.]. Efficient Two-Dimensional Direction Finding via Auxiliary-Variable Manifold Separation Technique for Arbitrary Array Structure. Mathematical Problems in Engineering No. 2015 (2015), pp.1-7.
https://search.emarefa.net/detail/BIM-1074624
American Medical Association (AMA)
Hua, Guang& Wu, Jiudong& Zhu, Xi-Cheng& Zhou, Hou-Xing& Hong, Wei. Efficient Two-Dimensional Direction Finding via Auxiliary-Variable Manifold Separation Technique for Arbitrary Array Structure. Mathematical Problems in Engineering. 2015. Vol. 2015, no. 2015, pp.1-7.
https://search.emarefa.net/detail/BIM-1074624
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1074624