Computationally Efficient 2-D DOA Estimation for L-Shaped Array With Automatic Pairing

As L-shaped array can provide good angle estimation performance and is easy to implement, many two-dimensional (2-D) direction-of-arrival (DOA) estimation algorithms have been developed. In this letter, we present a low-computation-complexity DOA estimation method for L-shaped array that exploits th...

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Bibliographic Details
Published in:IEEE antennas and wireless propagation letters 2016, Vol.15, p.1669-1672
Main Authors: Dong, Yang-Yang, Dong, Chun-xi, Xu, Jin, Zhao, Guo-qing
Format: Article
Language:English
Subjects:
Apertures
Arrays
Azimuth
Complexity theory
Direction-of-arrival estimation
Estimation
L-shaped array
Manifolds
pair matching
propagator method
two-dimensional direction-of-arrival (2-D DOA) estimation
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Summary:As L-shaped array can provide good angle estimation performance and is easy to implement, many two-dimensional (2-D) direction-of-arrival (DOA) estimation algorithms have been developed. In this letter, we present a low-computation-complexity DOA estimation method for L-shaped array that exploits the conjugate symmetry property of the array manifold matrix to increase the effective array aperture and improve the angle estimation performance. Hence, the DOA estimation is obtained via combining propagator method (PM) with ESPRIT algorithm, which does not need spectrum peak search or additional angle pair matching procedure. Simulation results demonstrate the effectiveness of the proposed method.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2016.2521785