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Two-Dimensional DOA Estimation of Coherent Sources for Acoustic Vector-Sensor Array Using a Single Snapshot

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Abstract

This paper discusses the problem of two-dimensional direction of arrival estimation of coherent sources for acoustic vector sensors array. Compared with subspace-based methods, such as root multiple signal classification and estimation of signal parameters via rotational invariance technique, the propagator method (PM) has lower computational complexity. However, only in high-snapshots situation, can the PM algorithm enjoy a better estimation performance. Besides, all of these algorithms mentioned above cannot work for coherent sources. In this paper, we combine PM algorithm with Toeplitz Hermitian matrix reconstruction, and propose an improved algorithm, which works well in the case of coherent signals and a single snapshot. Furthermore, the proposed method can achieve automatically paired two-dimensional angle estimation. Simulation results verify that the proposed method has the better angle performance and less computational complexity than spatial smoothing methods.

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Acknowledgments

This work is supported by China NSF Grants (60801052), Jiangsu Planned Projects for Postdoctoral Research Funds (1201039C), China Postdoctoral Science Foundation (2012M521099), Open project of key laboratory of underwater acoustic communication and marine information technology (Xiamen University), Hubei Key Laboratory of Intelligent Wire1ess Communications (IWC2012002), Open project of Key Laboratory of Nondestructive Testing (Nanchang Hangkong University), Open project of Key Laboratory of modern acoustic of Ministry of Education (Nanjing University), the Aeronautical Science Foundation of China (20120152001), and the Fundamental Research Funds for the Central Universities (NZ2012010, kfjj120115, kfjj20110215).

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Authors and Affiliations

  1. College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China

    Han Chen & Xiaofei Zhang

  2. Nanjing Panda Electronics Group, Nanjing, 210002, China

    Xiaofei Zhang

  3. Laboratory of modern acoustic of ministry of education, Nanjing University, Nanjing, 210093, China

    Xiaofei Zhang

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  1. Han Chen
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  2. Xiaofei Zhang
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Correspondence to Han Chen.

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Chen, H., Zhang, X. Two-Dimensional DOA Estimation of Coherent Sources for Acoustic Vector-Sensor Array Using a Single Snapshot. Wireless Pers Commun 72, 1–13 (2013). https://doi.org/10.1007/s11277-013-0997-z

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  • DOI: https://doi.org/10.1007/s11277-013-0997-z

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