Abstract
An acoustic vector sensor (AVS) can capture more information than a conventional acoustic pressure sensor (APS). As a result, more output channels are required when multiple AVS are formed into arrays, making processing the data stream computationally intense. This paper proposes a new algorithm based on the propagator method for wideband coherent sources that eliminates eigen-decomposition in order to reduce the computational burden. Data from simulations and lake trials showed that the new algorithm is valid: it resolves coherent sources, breaks left/right ambiguity, and allows inter element spacing to exceed a half-wavelength.
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Foundation item: Supported by the National 863 Plan Project of Ministry of Science and Technology of China under Grant No.2006AA09Z234.
SUN Guo-cang was born in 1977. He is a PhD candidate for underwater acoustic engineering at the College of Underwater Acoustic Engineering, Harbin Engineering University. His research interests include underwater acoustic signal processing and structure vibration.
HUI Jun-ying was born in 1939. He is a professor and a doctor supervisor of underwater acoustic engineering at Harbin Engineering University. His research interests include underwater acoustic signal processing and underwater physics.
CHEN Yang was born in 1982. He is a PhD candidate for underwater acoustic engineering at the College of Underwater Acoustic Engineering, Harbin Engineering University. His research interest is focused on underwater acoustic signal processing.
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Sun, Gc., Hui, Jy. & Chen, Y. Fast direction of arrival algorithm based on vector-sensor arrays using wideband sources. J. Marine. Sci. Appl. 7, 195–199 (2008). https://doi.org/10.1007/s11804-008-7079-8
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DOI: https://doi.org/10.1007/s11804-008-7079-8