Fourth-Order Cumulants Beamforming for Direction of Arrival Estimation

Ting Ting Li

doi:10.4028/www.scientific.net/AMM.602-605.3384

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 602-605Fourth-Order Cumulants Beamforming for Direction...

Fourth-Order Cumulants Beamforming for Direction of Arrival Estimation

Abstract:

With the rapid development of DOA (direction-of-arrival) estimation methods, the existing beamforming technologies still have the problem of a way to balance high spatial resolution and robust performance. The aperture extension characteristics of fourth-order cumulants is used to raise the spatial resolution of the array in this paper. By using the structure of minimum redundancy array, the calculation of the fourth-order cumulants matrix can be reduced. Simulations of the properties of fourth–order cumulants beamforming method are analyzed in this paper, including the resolution analysis, multi-sources analysis and error analysis. Simulation results show that the fourth-order cumulants beamforming method has a higher spatial resolution than the conventional beamforming method without increasing the number of the array sensors.

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Periodical:

Applied Mechanics and Materials (Volumes 602-605)

Pages:

3384-3387

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.602-605.3384

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Online since:

August 2014

Authors:

Ting Ting Li*

Keywords:

DOA Estimation, Fourth-Order Cumulants Beamforming, Spatial Resolution

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