Articles with "shaped array" as a keyword



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2-D DOA Estimation for L-Shaped Array With Array Aperture and Snapshots Extension Techniques

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Published in 2017 at "IEEE Signal Processing Letters"

DOI: 10.1109/lsp.2017.2676124

Abstract: A two-dimensional (2-D) direction of arrival estimation method for L-shaped array with automatic pairing is proposed. It exploits the conjugate symmetry property of the array manifold matrix to increase the effective array aperture and the… read more here.

Keywords: doa estimation; shaped array; array aperture;

2D-DOA Estimation of Strictly Noncircular Sources Utilizing Connection-Matrix for L-Shaped Array

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Published in 2021 at "IEEE Wireless Communications Letters"

DOI: 10.1109/lwc.2020.3029457

Abstract: In wireless communication, the signals with noncircularity are widely applied. In this letter, we consider the problem of two-dimensional direction of arrival estimation with L-shaped array for strictly noncircular sources. To obtain more precise estimation… read more here.

Keywords: shaped array; strictly noncircular; connection matrix; estimation ... See more keywords
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An L-Shaped Array With Nonorthogonal Axes—Its Cramér–Rao Bound for Direction Finding

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Published in 2018 at "IEEE Transactions on Aerospace and Electronic Systems"

DOI: 10.1109/taes.2017.2741298

Abstract: If a nominally L-shaped sensor-array's two legs are not exactly perpendicular, its azimuth-polar direction-of-arrival estimation would be degraded. This paper quantifies this degradation via a deterministic Cramér–Rao bound analysis of the direction-finding error variance. read more here.

Keywords: direction finding; direction; cram rao; rao bound ... See more keywords
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Computationally Efficient 2D DOA Estimation for L-Shaped Array with Unknown Mutual Coupling

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Published in 2018 at "Mathematical Problems in Engineering"

DOI: 10.1155/2018/5454719

Abstract: Although L-shaped array can provide good angle estimation performance and is easy to implement, its two-dimensional (2D) direction-of-arrival (DOA) performance degrades greatly in the presence of mutual coupling. To deal with the mutual coupling effect,… read more here.

Keywords: coupling; mutual coupling; doa estimation; computationally efficient ... See more keywords