Research of smart antennas DOA estimation based on wavelet transformer

doi:10.3969/j.issn.1000-5641.2016.06.018

Abstract

Abstract:

Having compared two classic smart antenna DOA (Direction of Arrival, DOA) estimation algorithm—delay-sum algorithm, multiple signal classification (MUSIC) algorithm, smart antennas direction of arrival estimation based on wavelet transformer (SADOAWT) algorithm has been proposed. Taking into account the computational complexity and convergence rate, the algorithm converts signal into multiple scales domain, while different frequency domain would use different algorithms. Simulation results show that the computational complexity of new algorithm is low. SADOAWT overcomes the disadvantages of delay-sum algorithm which has low resolution and many sidelobes, it also avoids the problem that resolution of MUSIC algorithm gets reduced while correlated signal coming.

Key words: DOA estimation, delay-sum algorithm, MUSIC, wavelet

LI Na, YIN Xing-hui, GAO Wen-yun. Research of smart antennas DOA estimation based on wavelet transformer[J]. Journal of East China Normal University(Natural Sc, doi: 10.3969/j.issn.1000-5641.2016.06.018.

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