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2-D Direction-of-Arrival: Estimation of Azimuth and Elevation by Exploiting the Amplitude Modulation Induced by Antenna’s Mechanical and Electronic Scan

Authors
  • Baig, Nauman Anwar1
  • Malik, Mohammad Bilal1
  • 1 National University of Sciences & Technology, NUST, Department of Electrical Engineering, College of Electrical & Mechanical Engineering, Islamabad, Pakistan , Islamabad (Pakistan)
Type
Published Article
Journal
Wireless Personal Communications
Publisher
Springer-Verlag
Publication Date
Apr 29, 2016
Volume
90
Issue
1
Pages
143–155
Identifiers
DOI: 10.1007/s11277-016-3336-3
Source
Springer Nature
Keywords
License
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Abstract

In this paper, we have proposed a beam-splitting like approach to find azimuth and elevation angles of multiple targets present in the mainlobe of scanning radar. L-shaped planar array is used to resolve targets in azimuth and elevation. Azimuth is scanned mechanically by rotation of the antenna while elevation is scanned electronically. Previously this approach was used to find Direction-of-Arrival in only one dimension; we have extended to resolve targets in 2 dimensions. Simulation results show the effectiveness of the proposed algorithm. Comparison of the proposed algorithm with well-known techniques in terms of Cramer Rao lower bound and computational complexities shows high accuracy and computational efficiency.

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