Waveguide invariant estimation based on correlation coefficient of tonal acoustic intensity interference fluctuation

The waveguide invariant is usually not extracted from the striation pattern of broadband continuous spectrum in the low frequency analysis and recording spectrum at low signal-to-noise ratio. In this paper, the correlation coefficient of multi-tonal acoustic intensity interference fluctuation is uti...

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Main Authors: YAO Yuan, SUN Chao, LIU Xionghou, LI Mingyang
Format: Article
Language:zho
Published: EDP Sciences 2023-06-01
Series:Xibei Gongye Daxue Xuebao
Subjects:
Online Access:https://www.jnwpu.org/articles/jnwpu/full_html/2023/03/jnwpu2023413p612/jnwpu2023413p612.html
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author YAO Yuan
SUN Chao
LIU Xionghou
LI Mingyang
author_facet YAO Yuan
SUN Chao
LIU Xionghou
LI Mingyang
author_sort YAO Yuan
collection DOAJ
description The waveguide invariant is usually not extracted from the striation pattern of broadband continuous spectrum in the low frequency analysis and recording spectrum at low signal-to-noise ratio. In this paper, the correlation coefficient of multi-tonal acoustic intensity interference fluctuation is utilized to estimate waveguide invariant. Since the proportional relationship between the reference intensity interference fluctuation and the scaled intensity interference fluctuation is dependent on waveguide invariant, the waveguide invariant estimation can be done. Firstly, the tonal intensity interference fluctuation has been resampled in the new time domain under the radial and non-radial motion models respectively. Then, the similarity degree between the resampling reference tonal intensity interference fluctuation and the scaling tonal intensity interference fluctuation can be described by correlation coefficient, and the peak of correlation coefficient is corresponding to the true value. Finally, the numerical results and the experimental results prove the proposed method's effectiveness.
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spelling doaj.art-dbc6ce5112fa4831b9632f01beb68f2c2023-12-03T09:07:48ZzhoEDP SciencesXibei Gongye Daxue Xuebao1000-27582609-71252023-06-0141361262010.1051/jnwpu/20234130612jnwpu2023413p612Waveguide invariant estimation based on correlation coefficient of tonal acoustic intensity interference fluctuationYAO Yuan0SUN Chao1LIU Xionghou2LI Mingyang3School of Marine Science and Technology, Northwestern Polytechnical UniversitySchool of Marine Science and Technology, Northwestern Polytechnical UniversitySchool of Marine Science and Technology, Northwestern Polytechnical UniversityCollege of Information Science and Electronic Engineering, Zhejiang UniversityThe waveguide invariant is usually not extracted from the striation pattern of broadband continuous spectrum in the low frequency analysis and recording spectrum at low signal-to-noise ratio. In this paper, the correlation coefficient of multi-tonal acoustic intensity interference fluctuation is utilized to estimate waveguide invariant. Since the proportional relationship between the reference intensity interference fluctuation and the scaled intensity interference fluctuation is dependent on waveguide invariant, the waveguide invariant estimation can be done. Firstly, the tonal intensity interference fluctuation has been resampled in the new time domain under the radial and non-radial motion models respectively. Then, the similarity degree between the resampling reference tonal intensity interference fluctuation and the scaling tonal intensity interference fluctuation can be described by correlation coefficient, and the peak of correlation coefficient is corresponding to the true value. Finally, the numerical results and the experimental results prove the proposed method's effectiveness.https://www.jnwpu.org/articles/jnwpu/full_html/2023/03/jnwpu2023413p612/jnwpu2023413p612.html线谱声强干涉起伏相关系数波导不变量
spellingShingle YAO Yuan
SUN Chao
LIU Xionghou
LI Mingyang
Waveguide invariant estimation based on correlation coefficient of tonal acoustic intensity interference fluctuation
Xibei Gongye Daxue Xuebao
线谱声强
干涉起伏
相关系数
波导不变量
title Waveguide invariant estimation based on correlation coefficient of tonal acoustic intensity interference fluctuation
title_full Waveguide invariant estimation based on correlation coefficient of tonal acoustic intensity interference fluctuation
title_fullStr Waveguide invariant estimation based on correlation coefficient of tonal acoustic intensity interference fluctuation
title_full_unstemmed Waveguide invariant estimation based on correlation coefficient of tonal acoustic intensity interference fluctuation
title_short Waveguide invariant estimation based on correlation coefficient of tonal acoustic intensity interference fluctuation
title_sort waveguide invariant estimation based on correlation coefficient of tonal acoustic intensity interference fluctuation
topic 线谱声强
干涉起伏
相关系数
波导不变量
url https://www.jnwpu.org/articles/jnwpu/full_html/2023/03/jnwpu2023413p612/jnwpu2023413p612.html
work_keys_str_mv AT yaoyuan waveguideinvariantestimationbasedoncorrelationcoefficientoftonalacousticintensityinterferencefluctuation
AT sunchao waveguideinvariantestimationbasedoncorrelationcoefficientoftonalacousticintensityinterferencefluctuation
AT liuxionghou waveguideinvariantestimationbasedoncorrelationcoefficientoftonalacousticintensityinterferencefluctuation
AT limingyang waveguideinvariantestimationbasedoncorrelationcoefficientoftonalacousticintensityinterferencefluctuation