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Direction Finding Using Uniform Circular Array of Horizontal Log-Periodic Dipole Antennas
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Direction Finding Using Uniform Circular Array of Horizontal Log-Periodic Dipole Antennas
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Journal Article
Direction Finding Using Uniform Circular Array of Horizontal Log-Periodic Dipole Antennas
2019
Overview
Direction finding (DF) using the uniform circular array composed of horizontal log-periodic dipole antennas (UCA-LPDA) is studied in this paper. One advantage of the UCA-LPDA is that it has a reasonable effective radius for broadband DF. Compared with the previous works which usually focused on isotropic antennas, the UCA-LPDA has higher gain and higher angular resolution for the direction of arrival estimation. The spatial response of the UCA-LPDA and the direction of arrival (DOA) estimation algorithms are discussed. The proposed polarized MUSIC (Pol-MUSIC) method can obtain the DOA of signals with any unknown polarizations while no search of the polarizations is required. Based on the theoretical analysis, the actual signal DF experiment which uses a UCA-LPDA with 24 elements was carried out. The DF experiments results demonstrate the effectiveness and accuracy of using UCA-LPDA with Pol-MUSIC method.
Publisher
River Publishers
Subject
