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...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | zho |
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EDP Sciences
2023-06-01
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| Series: | Xibei Gongye Daxue Xuebao |
| Subjects: | |
| Online Access: | https://www.jnwpu.org/articles/jnwpu/full_html/2023/03/jnwpu2023413p612/jnwpu2023413p612.html |
| _version_ | 1827608344806817792 |
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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. |
| first_indexed | 2024-03-09T07:10:49Z |
| format | Article |
| id | doaj.art-dbc6ce5112fa4831b9632f01beb68f2c |
| institution | Directory Open Access Journal |
| issn | 1000-2758 2609-7125 |
| language | zho |
| last_indexed | 2024-03-09T07:10:49Z |
| publishDate | 2023-06-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | Xibei Gongye Daxue Xuebao |
| 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 |