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- Publisher Website: 10.1109/ICICIP.2011.6008242
- Scopus: eid_2-s2.0-80053181097
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Conference Paper: On the robust near-field broadband beamformer design
Title | On the robust near-field broadband beamformer design |
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Authors | |
Keywords | Robust Beamformer Semi-Definite Programming |
Issue Date | 2011 |
Citation | Proceedings Of The 2Nd International Conference On Intelligent Control And Information Processing, Icicip 2011, 2011 PART 1, p. 251-255 How to Cite? |
Abstract | Broadband microphone arrays play an important role for noise reduction in various applications, such as voice interface equipment or hands-free telephony. For most cases, it is essential to design the beamformer so that certain spatial and frequency features can be extracted and the rest being attenuated. For the method to be data-independent, a physical signal propagation model can be deployed and the optimization problem can be posed. In this paper, this design problem is studied. Robust minimax designs are considered. We will study the sensitivity of the designs towards uncertainties in the parameters, including speaker positions and microphone locations. We found that the optimal design is not very sensitive to speaker position perturbations, but is affected significantly if microphone locations are indeed erroneous. © 2011 IEEE. |
Persistent Identifier | http://hdl.handle.net/10722/155948 |
References |
DC Field | Value | Language |
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dc.contributor.author | Yiu, KFC | en_US |
dc.contributor.author | Gao, MJ | en_US |
dc.contributor.author | Feng, ZG | en_US |
dc.date.accessioned | 2012-08-08T08:38:33Z | - |
dc.date.available | 2012-08-08T08:38:33Z | - |
dc.date.issued | 2011 | en_US |
dc.identifier.citation | Proceedings Of The 2Nd International Conference On Intelligent Control And Information Processing, Icicip 2011, 2011 PART 1, p. 251-255 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/155948 | - |
dc.description.abstract | Broadband microphone arrays play an important role for noise reduction in various applications, such as voice interface equipment or hands-free telephony. For most cases, it is essential to design the beamformer so that certain spatial and frequency features can be extracted and the rest being attenuated. For the method to be data-independent, a physical signal propagation model can be deployed and the optimization problem can be posed. In this paper, this design problem is studied. Robust minimax designs are considered. We will study the sensitivity of the designs towards uncertainties in the parameters, including speaker positions and microphone locations. We found that the optimal design is not very sensitive to speaker position perturbations, but is affected significantly if microphone locations are indeed erroneous. © 2011 IEEE. | en_US |
dc.language | eng | en_US |
dc.relation.ispartof | Proceedings of the 2nd International Conference on Intelligent Control and Information Processing, ICICIP 2011 | en_US |
dc.subject | Robust Beamformer | en_US |
dc.subject | Semi-Definite Programming | en_US |
dc.title | On the robust near-field broadband beamformer design | en_US |
dc.type | Conference_Paper | en_US |
dc.identifier.email | Yiu, KFC:cedric@hkucc.hku.hk | en_US |
dc.identifier.authority | Yiu, KFC=rp00206 | en_US |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.doi | 10.1109/ICICIP.2011.6008242 | en_US |
dc.identifier.scopus | eid_2-s2.0-80053181097 | en_US |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-80053181097&selection=ref&src=s&origin=recordpage | en_US |
dc.identifier.issue | PART 1 | en_US |
dc.identifier.spage | 251 | en_US |
dc.identifier.epage | 255 | en_US |
dc.identifier.scopusauthorid | Yiu, KFC=24802813000 | en_US |
dc.identifier.scopusauthorid | Gao, MJ=53163541700 | en_US |
dc.identifier.scopusauthorid | Feng, ZG=12753600700 | en_US |