Optimum Placement of DF Antenna Elements for Accurate DOA Estimation in a Harsh Platform Environment
Gangil Byun (1), Hosung Choo (2) and Hao Ling (3)
(1) Hanyang University, Seoul, Korea, (2) Hongik University, Seoul, Korea, (3) The University of Texas at Austin, TX, USA
This paper presents a systematic approach to the optimum placement of direction finding (DF) antennas in a harsh platform environment. A circular array with omni-directional elements is considered for azimuthal direction of arrival (DOA) estimation based on the multiple signal classification (MUSIC) algorithm. The element positions are optimized by the use of a genetic algorithm (GA) in conjunction with the FEKO electromagnetic simulator. The proposed approach is first tested with a generic platform shape. It is then extended to a more realistic military aircraft model with a strong scattering object. The optimized results show a significant performance improvement over the uniform circular array in both platform environments.
IEEE Trans. on Antennas and Propagation
2013
September
61
9
4783 - 4791
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