Efficient Narrowband Direction of Arrival Estimation Based on a Combination of Uniform LinearShirvani-Akbari Arrays
Joint Authors
Shirvani-Moghaddam, Shahriar
Akbari, Farida
Source
International Journal of Antennas and Propagation
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-09-06
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Uniform linear array (ULA) geometry does not perform well for direction of arrival (DOA) estimation at directions close to the array endfires.
Shirvani and Akbari solved this problem by displacing two elements from both ends of the ULA to the top and/or bottom of the array axis.
Shirvani-Akbari array (SAA) presents a considerable improvement in the DOA estimation of narrowband sources arriving at endfire directions in terms of DOA estimation accuracy and angular resolution.
In this paper, all new proposed SAA configurations are modelled and also examined, numerically.
In this paper, two well-known DOA estimation algorithms, multiple signal classification (MUSIC) and minimum variance distortionless response (MVDR), are used to evaluate the effectiveness of proposed arrays using total root mean square error (RMSE) criterion.
In addition, two new scenarios are proposed which divide angular search to two parts, directions close to array endfires as well as middle angles.
For middle angles, which belong to (-70°≤θ≤70°), ULA is considered, and for endfire angles, the angles which belong to (-90°≤θ≤-70°) and (70°≤θ≤90°), SAA is considered.
Simulation results of new proposed scenarios for DOA estimation of narrowband signals show the better performance with lower computational load.
American Psychological Association (APA)
Shirvani-Moghaddam, Shahriar& Akbari, Farida. 2012. Efficient Narrowband Direction of Arrival Estimation Based on a Combination of Uniform LinearShirvani-Akbari Arrays. International Journal of Antennas and Propagation،Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-459949
Modern Language Association (MLA)
Shirvani-Moghaddam, Shahriar& Akbari, Farida. Efficient Narrowband Direction of Arrival Estimation Based on a Combination of Uniform LinearShirvani-Akbari Arrays. International Journal of Antennas and Propagation No. 2012 (2012), pp.1-10.
https://search.emarefa.net/detail/BIM-459949
American Medical Association (AMA)
Shirvani-Moghaddam, Shahriar& Akbari, Farida. Efficient Narrowband Direction of Arrival Estimation Based on a Combination of Uniform LinearShirvani-Akbari Arrays. International Journal of Antennas and Propagation. 2012. Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-459949
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-459949