Approach of wideband robust adaptive beamforming based on microphone arrays
The approach of wideband robust adaptive beamforming （RABF） for speech enhancement based on micro-phone arrays was investigated. It combined the technologies of frequency focusing and diagonal loading, with the former aiming at frequency domain consistency of the beampattern, whereas the latter at r...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2006-01-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/74660092/ |
| _version_ | 1826873157099716608 |
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| author | LIN Jing-ran PENG Qi-cong SHAO Huai-zong JU Tai-liang |
| author_facet | LIN Jing-ran PENG Qi-cong SHAO Huai-zong JU Tai-liang |
| author_sort | LIN Jing-ran |
| collection | DOAJ |
| description | The approach of wideband robust adaptive beamforming （RABF） for speech enhancement based on micro-phone arrays was investigated. It combined the technologies of frequency focusing and diagonal loading, with the former aiming at frequency domain consistency of the beampattern, whereas the latter at robustness against steering vector mis-matches. The loading level was determined based on worst-case performance optimization and a simple closed-form so-lution to the optimal loading was derived after some approximations. Compared with many existing methods in this field, the one with the proposed analytical solution is computationally less demanding and achieves better performance in speech enhancement. Moreover, the analytical solution reveals how different factors affect the optimal loading. Numeri-cal examples confirm its correctness and effectiveness. |
| first_indexed | 2025-02-17T00:12:00Z |
| format | Article |
| id | doaj.art-530414dd6ed94df7afec09cb38e6e0fa |
| institution | Directory Open Access Journal |
| issn | 1000-436X |
| language | zho |
| last_indexed | 2025-02-17T00:12:00Z |
| publishDate | 2006-01-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj.art-530414dd6ed94df7afec09cb38e6e0fa2025-01-14T08:37:10ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2006-01-0113213874660092Approach of wideband robust adaptive beamforming based on microphone arraysLIN Jing-ranPENG Qi-congSHAO Huai-zongJU Tai-liangThe approach of wideband robust adaptive beamforming （RABF） for speech enhancement based on micro-phone arrays was investigated. It combined the technologies of frequency focusing and diagonal loading, with the former aiming at frequency domain consistency of the beampattern, whereas the latter at robustness against steering vector mis-matches. The loading level was determined based on worst-case performance optimization and a simple closed-form so-lution to the optimal loading was derived after some approximations. Compared with many existing methods in this field, the one with the proposed analytical solution is computationally less demanding and achieves better performance in speech enhancement. Moreover, the analytical solution reveals how different factors affect the optimal loading. Numeri-cal examples confirm its correctness and effectiveness.http://www.joconline.com.cn/zh/article/74660092/microphone arraysspeech enhancementRABFfrequency focusingdiagonal loading |
| spellingShingle | LIN Jing-ran PENG Qi-cong SHAO Huai-zong JU Tai-liang Approach of wideband robust adaptive beamforming based on microphone arrays Tongxin xuebao microphone arrays speech enhancement RABF frequency focusing diagonal loading |
| title | Approach of wideband robust adaptive beamforming based on microphone arrays |
| title_full | Approach of wideband robust adaptive beamforming based on microphone arrays |
| title_fullStr | Approach of wideband robust adaptive beamforming based on microphone arrays |
| title_full_unstemmed | Approach of wideband robust adaptive beamforming based on microphone arrays |
| title_short | Approach of wideband robust adaptive beamforming based on microphone arrays |
| title_sort | approach of wideband robust adaptive beamforming based on microphone arrays |
| topic | microphone arrays speech enhancement RABF frequency focusing diagonal loading |
| url | http://www.joconline.com.cn/zh/article/74660092/ |
| work_keys_str_mv | AT linjingran approachofwidebandrobustadaptivebeamformingbasedonmicrophonearrays AT pengqicong approachofwidebandrobustadaptivebeamformingbasedonmicrophonearrays AT shaohuaizong approachofwidebandrobustadaptivebeamformingbasedonmicrophonearrays AT jutailiang approachofwidebandrobustadaptivebeamformingbasedonmicrophonearrays |