Scattering characteristics analysis of conformal array based on sound field prediction method
In order to study the problem that the array manifold of conformal arrays deviates from the ideal value due to the sound scattering caused by the rigid baffles of arrays, in this paper, the influence of the scattering phenomenon caused by the rigid baffle on the receiving response of array is analyz...
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| Format: | Article |
| Language: | zho |
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EDP Sciences
2022-06-01
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| Series: | Xibei Gongye Daxue Xuebao |
| Subjects: | |
| Online Access: | https://www.jnwpu.org/articles/jnwpu/full_html/2022/03/jnwpu2022403p568/jnwpu2022403p568.html |
| _version_ | 1797642185011625984 |
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| author | DAI Yan SUN Chao |
| author_facet | DAI Yan SUN Chao |
| author_sort | DAI Yan |
| collection | DOAJ |
| description | In order to study the problem that the array manifold of conformal arrays deviates from the ideal value due to the sound scattering caused by the rigid baffles of arrays, in this paper, the influence of the scattering phenomenon caused by the rigid baffle on the receiving response of array is analyzed by using sound field prediction method based on a conformal array-semi-cylindrical volume array. The sound field distribution of conformal array at different angles is calculated by using the sound field modeling and simulation. Based on the above distribution, an actual array manifold is constructed under consideration of rigid barrier, and its variation under the influence of scattered sound is analyzed. The variation is described by two physical quantities defined in this paper: the first-order response composed of amplitude and phase and the second-order response composed of cross-correlation. Simulation shows that compared with the ideal model, the scattered signals generated by rigid baffles on conformal array varies with the azimuth and signal-to-noise ratio(SNR), which further leads to the deviation of each hydrophone of conformal array. The experimental data verifies that the simulation results are basically consistent with the actual situation. The effect of the scattering on the conformal array should be considered when designing and performing in practice. |
| first_indexed | 2024-03-11T13:56:33Z |
| format | Article |
| id | doaj.art-c49cb5d9aadc4d18914298859bbfba84 |
| institution | Directory Open Access Journal |
| issn | 1000-2758 2609-7125 |
| language | zho |
| last_indexed | 2024-03-11T13:56:33Z |
| publishDate | 2022-06-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | Xibei Gongye Daxue Xuebao |
| spelling | doaj.art-c49cb5d9aadc4d18914298859bbfba842023-11-02T06:37:00ZzhoEDP SciencesXibei Gongye Daxue Xuebao1000-27582609-71252022-06-0140356857510.1051/jnwpu/20224030568jnwpu2022403p568Scattering characteristics analysis of conformal array based on sound field prediction methodDAI Yan0SUN Chao1School of Marine Science and Technology, Northwestern Polytechnical UniversitySchool of Marine Science and Technology, Northwestern Polytechnical UniversityIn order to study the problem that the array manifold of conformal arrays deviates from the ideal value due to the sound scattering caused by the rigid baffles of arrays, in this paper, the influence of the scattering phenomenon caused by the rigid baffle on the receiving response of array is analyzed by using sound field prediction method based on a conformal array-semi-cylindrical volume array. The sound field distribution of conformal array at different angles is calculated by using the sound field modeling and simulation. Based on the above distribution, an actual array manifold is constructed under consideration of rigid barrier, and its variation under the influence of scattered sound is analyzed. The variation is described by two physical quantities defined in this paper: the first-order response composed of amplitude and phase and the second-order response composed of cross-correlation. Simulation shows that compared with the ideal model, the scattered signals generated by rigid baffles on conformal array varies with the azimuth and signal-to-noise ratio(SNR), which further leads to the deviation of each hydrophone of conformal array. The experimental data verifies that the simulation results are basically consistent with the actual situation. The effect of the scattering on the conformal array should be considered when designing and performing in practice.https://www.jnwpu.org/articles/jnwpu/full_html/2022/03/jnwpu2022403p568/jnwpu2022403p568.html共形体积阵声场预报散射特性 |
| spellingShingle | DAI Yan SUN Chao Scattering characteristics analysis of conformal array based on sound field prediction method Xibei Gongye Daxue Xuebao 共形体积阵 声场预报 散射特性 |
| title | Scattering characteristics analysis of conformal array based on sound field prediction method |
| title_full | Scattering characteristics analysis of conformal array based on sound field prediction method |
| title_fullStr | Scattering characteristics analysis of conformal array based on sound field prediction method |
| title_full_unstemmed | Scattering characteristics analysis of conformal array based on sound field prediction method |
| title_short | Scattering characteristics analysis of conformal array based on sound field prediction method |
| title_sort | scattering characteristics analysis of conformal array based on sound field prediction method |
| topic | 共形体积阵 声场预报 散射特性 |
| url | https://www.jnwpu.org/articles/jnwpu/full_html/2022/03/jnwpu2022403p568/jnwpu2022403p568.html |
| work_keys_str_mv | AT daiyan scatteringcharacteristicsanalysisofconformalarraybasedonsoundfieldpredictionmethod AT sunchao scatteringcharacteristicsanalysisofconformalarraybasedonsoundfieldpredictionmethod |