FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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A Simple Method for Source Depth Estimation with Multi-path Time Delay in Deep Ocean |
Kun-De Yang1,2**, Qiu-Long Yang1,2, Xiao-Le Guo1,2, Ran Cao1,2 |
1Key Laboratory of Ocean Acoustics and Sensing (Ministry of Industry and Information Technology), Northwestern Polytechnical University, Xi'an 710072 2School of Marine Science and Technology, Northwestern Polytechnical University, Xi'an 710072
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Cite this article: |
Kun-De Yang, Qiu-Long Yang, Xiao-Le Guo et al 2016 Chin. Phys. Lett. 33 124302 |
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Abstract A method of source depth estimation based on the multi-path time delay difference is proposed. When the minimum time arrivals in all receiver depths are snapped to a certain time on time delay-depth plane, time delay arrivals of surface-bottom reflection and bottom-surface reflection intersect at the source depth. Two hydrophones deployed vertically with a certain interval are required at least. If the receiver depths are known, the pair of time delays can be used to estimate the source depth. With the proposed method the source depth can be estimated successfully in a moderate range in the deep ocean without complicated matched-field calculations in the simulations and experiments.
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Received: 22 September 2016
Published: 29 December 2016
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PACS: |
43.30.Cq
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(Ray propagation of sound in water)
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43.60.Jn
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(Source localization and parameter estimation)
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43.30.-k
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(Underwater sound)
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Fund: Supported by the National Natural Science Foundation of China under Grant No 11174235. |
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