An Analytical Model for Understanding Active Directivity Noise Control with Near-Field Error Sensing
Recent research shows that a directional quiet zone from near to far field can be created with a near-field microphone array. However, there is no systematic theoretical analysis of this error-sensing strategy. In this paper, an analytical model of the angular spectrum of point sources in the free f...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-07-01
|
| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/13/14/8486 |
| _version_ | 1797590383104884736 |
|---|---|
| author | Hongji Duan Shuping Wang Jiancheng Tao |
| author_facet | Hongji Duan Shuping Wang Jiancheng Tao |
| author_sort | Hongji Duan |
| collection | DOAJ |
| description | Recent research shows that a directional quiet zone from near to far field can be created with a near-field microphone array. However, there is no systematic theoretical analysis of this error-sensing strategy. In this paper, an analytical model of the angular spectrum of point sources in the free field is proposed, based on which the near-field error-sensing strategy for active directivity noise control can be quantitively analyzed. It is found that the noise reduction in the far field is determined by the angular spectrum estimation error of both the primary and secondary sources. The impacts of the error microphone array configuration, sound source position, and target direction on the estimation error of angular spectrum are investigated. Finally, experiments were conducted in the anechoic chamber to validate the impact of the location of the secondary source. |
| first_indexed | 2024-03-11T01:19:41Z |
| format | Article |
| id | doaj.art-91f623af88f34324963ed6c43f97a51b |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T01:19:41Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-91f623af88f34324963ed6c43f97a51b2023-11-18T18:13:43ZengMDPI AGApplied Sciences2076-34172023-07-011314848610.3390/app13148486An Analytical Model for Understanding Active Directivity Noise Control with Near-Field Error SensingHongji Duan0Shuping Wang1Jiancheng Tao2Key Laboratory of Modern Acoustics and Institute of Acoustics, Nanjing University, Nanjing 210093, ChinaKey Laboratory of Modern Acoustics and Institute of Acoustics, Nanjing University, Nanjing 210093, ChinaKey Laboratory of Modern Acoustics and Institute of Acoustics, Nanjing University, Nanjing 210093, ChinaRecent research shows that a directional quiet zone from near to far field can be created with a near-field microphone array. However, there is no systematic theoretical analysis of this error-sensing strategy. In this paper, an analytical model of the angular spectrum of point sources in the free field is proposed, based on which the near-field error-sensing strategy for active directivity noise control can be quantitively analyzed. It is found that the noise reduction in the far field is determined by the angular spectrum estimation error of both the primary and secondary sources. The impacts of the error microphone array configuration, sound source position, and target direction on the estimation error of angular spectrum are investigated. Finally, experiments were conducted in the anechoic chamber to validate the impact of the location of the secondary source.https://www.mdpi.com/2076-3417/13/14/8486active noise controldirectivity controlangular spectrum analysis |
| spellingShingle | Hongji Duan Shuping Wang Jiancheng Tao An Analytical Model for Understanding Active Directivity Noise Control with Near-Field Error Sensing Applied Sciences active noise control directivity control angular spectrum analysis |
| title | An Analytical Model for Understanding Active Directivity Noise Control with Near-Field Error Sensing |
| title_full | An Analytical Model for Understanding Active Directivity Noise Control with Near-Field Error Sensing |
| title_fullStr | An Analytical Model for Understanding Active Directivity Noise Control with Near-Field Error Sensing |
| title_full_unstemmed | An Analytical Model for Understanding Active Directivity Noise Control with Near-Field Error Sensing |
| title_short | An Analytical Model for Understanding Active Directivity Noise Control with Near-Field Error Sensing |
| title_sort | analytical model for understanding active directivity noise control with near field error sensing |
| topic | active noise control directivity control angular spectrum analysis |
| url | https://www.mdpi.com/2076-3417/13/14/8486 |
| work_keys_str_mv | AT hongjiduan ananalyticalmodelforunderstandingactivedirectivitynoisecontrolwithnearfielderrorsensing AT shupingwang ananalyticalmodelforunderstandingactivedirectivitynoisecontrolwithnearfielderrorsensing AT jianchengtao ananalyticalmodelforunderstandingactivedirectivitynoisecontrolwithnearfielderrorsensing AT hongjiduan analyticalmodelforunderstandingactivedirectivitynoisecontrolwithnearfielderrorsensing AT shupingwang analyticalmodelforunderstandingactivedirectivitynoisecontrolwithnearfielderrorsensing AT jianchengtao analyticalmodelforunderstandingactivedirectivitynoisecontrolwithnearfielderrorsensing |