Low frequency acoustic source imaging method based on coprime position non-synchronous measurement
In order to solve the problem that the acoustic imaging resolution was low under the condition of low frequency and low SNR due to the limited microphone array aperture and element density, a high resolution imaging method of low frequency and low SNR sound source was proposed based on the non-synch...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2023-09-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2023166/ |
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| _version_ | 1841539187674710016 |
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| author | Juan WEI Yutao HE Fangli NING |
| author_facet | Juan WEI Yutao HE Fangli NING |
| author_sort | Juan WEI |
| collection | DOAJ |
| description | In order to solve the problem that the acoustic imaging resolution was low under the condition of low frequency and low SNR due to the limited microphone array aperture and element density, a high resolution imaging method of low frequency and low SNR sound source was proposed based on the non-synchronous measurement of the coprime position.Firstly, the acoustic signal was received at the coprime position and the missing cross-spectrum matrix was calculated by the mobile prototype array.Then, the improved accelerated proximity gradient algorithm was used to complete the missing cross-spectrum matrix, and the complete cross-spectrum matrix was vectorized.Finally, the virtual array signal model was established and solved.The simulation results demonstrate that the proposed method has lower positioning error, higher imaging resolution, and better robustness and noise immunity than the previous methods under the condition of low frequency and low SNR. |
| format | Article |
| id | doaj-art-47fa201f51014da0ba0e2afe63880d3b |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2023-09-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-47fa201f51014da0ba0e2afe63880d3b2025-01-14T07:23:31ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2023-09-01449310359835912Low frequency acoustic source imaging method based on coprime position non-synchronous measurementJuan WEIYutao HEFangli NINGIn order to solve the problem that the acoustic imaging resolution was low under the condition of low frequency and low SNR due to the limited microphone array aperture and element density, a high resolution imaging method of low frequency and low SNR sound source was proposed based on the non-synchronous measurement of the coprime position.Firstly, the acoustic signal was received at the coprime position and the missing cross-spectrum matrix was calculated by the mobile prototype array.Then, the improved accelerated proximity gradient algorithm was used to complete the missing cross-spectrum matrix, and the complete cross-spectrum matrix was vectorized.Finally, the virtual array signal model was established and solved.The simulation results demonstrate that the proposed method has lower positioning error, higher imaging resolution, and better robustness and noise immunity than the previous methods under the condition of low frequency and low SNR.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2023166/acoustic imagingcoprime positionnon-synchronous measurementmatrix completion |
| spellingShingle | Juan WEI Yutao HE Fangli NING Low frequency acoustic source imaging method based on coprime position non-synchronous measurement Tongxin xuebao acoustic imaging coprime position non-synchronous measurement matrix completion |
| title | Low frequency acoustic source imaging method based on coprime position non-synchronous measurement |
| title_full | Low frequency acoustic source imaging method based on coprime position non-synchronous measurement |
| title_fullStr | Low frequency acoustic source imaging method based on coprime position non-synchronous measurement |
| title_full_unstemmed | Low frequency acoustic source imaging method based on coprime position non-synchronous measurement |
| title_short | Low frequency acoustic source imaging method based on coprime position non-synchronous measurement |
| title_sort | low frequency acoustic source imaging method based on coprime position non synchronous measurement |
| topic | acoustic imaging coprime position non-synchronous measurement matrix completion |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2023166/ |
| work_keys_str_mv | AT juanwei lowfrequencyacousticsourceimagingmethodbasedoncoprimepositionnonsynchronousmeasurement AT yutaohe lowfrequencyacousticsourceimagingmethodbasedoncoprimepositionnonsynchronousmeasurement AT fanglining lowfrequencyacousticsourceimagingmethodbasedoncoprimepositionnonsynchronousmeasurement |