Invited Papers from the 12th International Conference on Theoretical and Computational Acoustics (ICTCA 2015); Guest Editor: Yuefeng SunNo Access

Direction of Arrival Estimation Under Near-Field Interference Using Matrix Filter

Guolong Liang

Department of Underwater Acoustic Engineering, Herbin Engineering University, Harbin, P. R. China

E-mail Address: liangguolong@hrbeu.edu.cn

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Wenbin Zhao

Department of Underwater Acoustic Engineering, Herbin Engineering University, Harbin, P. R. China

E-mail Address: zhaowenbin_1987@126.com

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, and

Zhan Fan

Department of Underwater Acoustic Engineering, Herbin Engineering University, Harbin, P. R. China

E-mail Address: fanzhan@hrbeu.edu.cn

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https://doi.org/10.1142/S0218396X1540007XCited by:3 (Source: Crossref)

Abstract

Direction of arrival (DOA) estimation is of great interest due to its wide applications in sonar, radar and many other areas. However, the near-field interference is always presented in the received data, which may result in degradation of DOA estimation. An approach which can suppress the near-field interference and preserve the far-field signal desired by using a spatial matrix filter is proposed in this paper and some typical DOA estimation algorithms are adjusted to match the filtered data. Simulation results show that the approach can improve capability of DOA estimation under near-field inference efficiently.

Keywords:

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