Harmonic Frequency Enhanced Direction of Arrival Estimation Using Non-Uniform Linear Arrays

This article introduces an innovative method to improve the accuracy of estimating the Direction of Arrival (DOA) by utilizing non-uniform linear arrays (NULAs) operating at harmonic frequencies. Common DOA techniques face challenges in maintaining sufficient degrees of freedom (DOFs) while minimizi...

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Veröffentlicht in:	IEEE access 2024, Vol.12, p.36942-36950
Hauptverfasser:	Niu, Ruizhi, Zhang, Zhenyu
Format:	Artikel
Sprache:	eng
Schlagworte:	Antenna arrays Array aperture Arrays coprime arrays coprime arrays with compressed inter-element spacing (CACIS) degrees of freedom (DOFs) Direction of arrival direction of arrival (DOA) estimation Direction-of-arrival estimation Estimation Harmonic analysis harmonic frequencies Harmonics Linear antenna arrays Linear arrays nested arrays non-uniform linear arrays (NULAs) sensor count reduction Simulation simulation results
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