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Sensors 2017, 17(6), 1315;

Joint Estimation of Source Range and Depth Using a Bottom-Deployed Vertical Line Array in Deep Water

1,2,* , 1,2
School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an 710072, China
Key Laboratory of Ocean Acoustics and Sensing(Northwestern Polytechnical University), Ministry of Industry and Information Technology, Xi’an 710072, China
Author to whom correspondence should be addressed.
Academic Editors: Xiaoning Jiang and Chao Zhang
Received: 22 March 2017 / Revised: 1 June 2017 / Accepted: 5 June 2017 / Published: 7 June 2017
(This article belongs to the Special Issue Acoustic Sensing and Ultrasonic Drug Delivery)
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This paper presents a joint estimation method of source range and depth using a bottom-deployed vertical line array (VLA). The method utilizes the information on the arrival angle of direct (D) path in space domain and the interference characteristic of D and surface-reflected (SR) paths in frequency domain. The former is related to a ray tracing technique to backpropagate the rays and produces an ambiguity surface of source range. The latter utilizes Lloyd’s mirror principle to obtain an ambiguity surface of source depth. The acoustic transmission duct is the well-known reliable acoustic path (RAP). The ambiguity surface of the combined estimation is a dimensionless ad hoc function. Numerical efficiency and experimental verification show that the proposed method is a good candidate for initial coarse estimation of source position. View Full-Text
Keywords: joint localization; vertical line array; reliable acoustic path joint localization; vertical line array; reliable acoustic path

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Li, H.; Yang, K.; Duan, R.; Lei, Z. Joint Estimation of Source Range and Depth Using a Bottom-Deployed Vertical Line Array in Deep Water. Sensors 2017, 17, 1315.

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