Variable fractional delay filter with sub-expression coefficients
Variable fractional delay (VFD) filters are useful for various signal processing and communication applications with frequency characteristics such as fractional delays to be varied online. In this paper, we investigate the design of VFD filters with discrete coefficients as a means of achieving low...
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| Format: | Journal Article |
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ICIC International
2013
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| Online Access: | http://www.ijicic.org/contents.htm http://hdl.handle.net/20.500.11937/40436 |
| _version_ | 1848755871043026944 |
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| author | Dam, Hai |
| author_facet | Dam, Hai |
| author_sort | Dam, Hai |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Variable fractional delay (VFD) filters are useful for various signal processing and communication applications with frequency characteristics such as fractional delays to be varied online. In this paper, we investigate the design of VFD filters with discrete coefficients as a means of achieving low complexity and efficient hardware implementation. The optimization problem with minimax criterion is formulated as a mixed integer programming problem with a non-linear cost function and continuous constraints. An efficient optimization procedure is proposed to tackle the design problem that includes a combination of the branch and bound method and an adaptive scheme for discretization. Design examples are given to demonstrate the effectiveness of the proposed algorithm. |
| first_indexed | 2025-11-14T09:03:11Z |
| format | Journal Article |
| id | curtin-20.500.11937-40436 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:03:11Z |
| publishDate | 2013 |
| publisher | ICIC International |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-404362017-01-30T14:42:40Z Variable fractional delay filter with sub-expression coefficients Dam, Hai Discrete coefficients Variable fractional delay filters Branch and bound method Optimization Subexpression Variable fractional delay (VFD) filters are useful for various signal processing and communication applications with frequency characteristics such as fractional delays to be varied online. In this paper, we investigate the design of VFD filters with discrete coefficients as a means of achieving low complexity and efficient hardware implementation. The optimization problem with minimax criterion is formulated as a mixed integer programming problem with a non-linear cost function and continuous constraints. An efficient optimization procedure is proposed to tackle the design problem that includes a combination of the branch and bound method and an adaptive scheme for discretization. Design examples are given to demonstrate the effectiveness of the proposed algorithm. 2013 Journal Article http://hdl.handle.net/20.500.11937/40436 http://www.ijicic.org/contents.htm ICIC International fulltext |
| spellingShingle | Discrete coefficients Variable fractional delay filters Branch and bound method Optimization Subexpression Dam, Hai Variable fractional delay filter with sub-expression coefficients |
| title | Variable fractional delay filter with sub-expression coefficients |
| title_full | Variable fractional delay filter with sub-expression coefficients |
| title_fullStr | Variable fractional delay filter with sub-expression coefficients |
| title_full_unstemmed | Variable fractional delay filter with sub-expression coefficients |
| title_short | Variable fractional delay filter with sub-expression coefficients |
| title_sort | variable fractional delay filter with sub-expression coefficients |
| topic | Discrete coefficients Variable fractional delay filters Branch and bound method Optimization Subexpression |
| url | http://www.ijicic.org/contents.htm http://hdl.handle.net/20.500.11937/40436 |