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Computationally efficient underwater acoustic 2-D source localization with arbitrarily spaced vector hydrophones at unknown locations using the propagator method

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Abstract

This paper presents a propagator-based algorithm for underwater acoustic 2-D direction-of-arrival (DOA) estimation with arbitrarily spaced vector hydrophones at unknown locations. The proposed algorithm requires only linear operations but no eigen-decomposition or singular value decomposition into the signal and noise subspaces. Comparing with its ESPRIT counterpart (Wong and Zoltowski, IEEE J Oceanic Eng 22:566–575, 1997a), the proposed propagator algorithm has its computational complexity reduced by this ratio: the number of sources to quadruple the number of vector hydrophones. Simulation results show that at high and medium signal-to-noise ratio, the proposed propagator algorithm’s estimation accuracy is similar to its ESPRIT counterpart.

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Authors and Affiliations

  1. Department of Electronic Engineering, Nanjing University of Science & Technology, Nanjing, Jiangsu, 210094, China

    Jin He & Zhong Liu

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  1. Jin He
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  2. Zhong Liu
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Correspondence to Jin He.

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He, J., Liu, Z. Computationally efficient underwater acoustic 2-D source localization with arbitrarily spaced vector hydrophones at unknown locations using the propagator method. Multidim Syst Sign Process 20, 285–296 (2009). https://doi.org/10.1007/s11045-008-0069-9

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  • DOI: https://doi.org/10.1007/s11045-008-0069-9

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