Design of broadband beamformers with low complexity
In this article, we consider the design of broadband beamformers with low complexity. In fact, the design problem is multi-objective in nature, trading off between speech distortion and noise suppression. Finding a balance between these two objectives is important in order to achieve a desired sound...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Published: |
SpringerOpen
2012
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| Online Access: | http://hdl.handle.net/20.500.11937/33863 |
| _version_ | 1848754064682123264 |
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| author | Feng, Zhi Yiu, Ka Fai Teo, Kok Lay Nordholm, Sven |
| author_facet | Feng, Zhi Yiu, Ka Fai Teo, Kok Lay Nordholm, Sven |
| author_sort | Feng, Zhi |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | In this article, we consider the design of broadband beamformers with low complexity. In fact, the design problem is multi-objective in nature, trading off between speech distortion and noise suppression. Finding a balance between these two objectives is important in order to achieve a desired sound quality. These measures are introduced as the objectives here. The design can then be obtained via a bi-objective integer programming problem, where the coefficients of the filters are expressed as sums of signed powers-of-two terms. We study two different integer spaces and penalty functions for solving the problem. Then, an algorithm based on a discrete filled function is developed for finding the optimal design. In order to illustrate the effectiveness of the algorithm, real data is used and two broadband beamformers are demonstrated. |
| first_indexed | 2025-11-14T08:34:28Z |
| format | Journal Article |
| id | curtin-20.500.11937-33863 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:34:28Z |
| publishDate | 2012 |
| publisher | SpringerOpen |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-338632017-09-13T15:52:03Z Design of broadband beamformers with low complexity Feng, Zhi Yiu, Ka Fai Teo, Kok Lay Nordholm, Sven In this article, we consider the design of broadband beamformers with low complexity. In fact, the design problem is multi-objective in nature, trading off between speech distortion and noise suppression. Finding a balance between these two objectives is important in order to achieve a desired sound quality. These measures are introduced as the objectives here. The design can then be obtained via a bi-objective integer programming problem, where the coefficients of the filters are expressed as sums of signed powers-of-two terms. We study two different integer spaces and penalty functions for solving the problem. Then, an algorithm based on a discrete filled function is developed for finding the optimal design. In order to illustrate the effectiveness of the algorithm, real data is used and two broadband beamformers are demonstrated. 2012 Journal Article http://hdl.handle.net/20.500.11937/33863 10.1186/1687-6180-2012-62 SpringerOpen fulltext |
| spellingShingle | Feng, Zhi Yiu, Ka Fai Teo, Kok Lay Nordholm, Sven Design of broadband beamformers with low complexity |
| title | Design of broadband beamformers with low complexity |
| title_full | Design of broadband beamformers with low complexity |
| title_fullStr | Design of broadband beamformers with low complexity |
| title_full_unstemmed | Design of broadband beamformers with low complexity |
| title_short | Design of broadband beamformers with low complexity |
| title_sort | design of broadband beamformers with low complexity |
| url | http://hdl.handle.net/20.500.11937/33863 |