Sponsor
This research was supported by the National Natural Science Foundation of China (Grant No. 11804222), the Young Elite Scientists Sponsorship Program by CAST (Grant No. 2018QNRC001), the Key Laboratory of Underwater Acoustic Environment, Institute of Acoustics, Chinese Academy of Sciences (Grant No. SHHJ-KFKT-1901), and the “Chen Guang project” supported by the Shanghai Municipal Education Commission and Shanghai Education Development Foundation.
Published In
JASA Express Letters
Document Type
Article
Publication Date
9-21-2021
Subjects
Underwater acoustics, Noise, Acoustical engineering
Abstract
This paper derives travel times and arrival angles of head-wave correlations from ocean ambient noise in shallow water over a layered seabed. The upcoming and surface reflected head-wave noise signal received at two receivers from the same interface are correlated, and their travel time differences give the travel times of the head-wave correlations. The arrival angle of head-wave correlations from an interface depends on sound speeds in the layers above and just below. The predictions of head-wave correlations from a seabed with two layers and the corresponding inversion results are verified with simulations.
Rights
Copyright (c) 2021 The Authors
This work is licensed under a Creative Commons Attribution 4.0 International License.
Locate the Document
DOI
10.1121/10.0006390
Persistent Identifier
https://archives.pdx.edu/ds/psu/37063
Citation Details
Li, J., Siderius, M., Gerstoft, P., Fan, J., & Muzi, L. (2021). Head-wave correlations in layered seabed: Theory and modeling. JASA Express Letters, 1(9), 096001.
