Design of Sparse FIR Filters with Low Group Delay
The aim of the work is to present the method for designing sparse FIR filters with very low group delay and approximately linear-phase in the passband. Significant reduction of the group delay, e.g. several times in relation to the linear phase filter, may cause the occurrence of undesirable oversho...
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| Format: | Article |
| Language: | English |
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Polish Academy of Sciences
2021-02-01
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| Series: | International Journal of Electronics and Telecommunications |
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| Online Access: | https://journals.pan.pl/Content/118874/PDF/17_2754_Konopacki_sk1.pdf |
| _version_ | 1818489314283094016 |
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| author | Jacek Konopacki |
| author_facet | Jacek Konopacki |
| author_sort | Jacek Konopacki |
| collection | DOAJ |
| description | The aim of the work is to present the method for designing sparse FIR filters with very low group delay and approximately linear-phase in the passband. Significant reduction of the group delay, e.g. several times in relation to the linear phase filter, may cause the occurrence of undesirable overshoot in the magnitude frequency response. The method proposed in this work consists of two stages. In the first stage, FIR filter with low group delay is designed using minimax constrained optimization that provides overshoot elimination. In the second stage, the same process is applied iteratively to reach sparse solution. Design examples demonstrate the effectiveness of the proposed method. |
| first_indexed | 2024-12-10T17:02:23Z |
| format | Article |
| id | doaj.art-61e524a674c9454da8dc4c4cb952eb62 |
| institution | Directory Open Access Journal |
| issn | 2081-8491 2300-1933 |
| language | English |
| last_indexed | 2024-12-10T17:02:23Z |
| publishDate | 2021-02-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | International Journal of Electronics and Telecommunications |
| spelling | doaj.art-61e524a674c9454da8dc4c4cb952eb622022-12-22T01:40:33ZengPolish Academy of SciencesInternational Journal of Electronics and Telecommunications2081-84912300-19332021-02-01vol. 67No 1121126https://doi.org/10.24425/ijet.2021.135953Design of Sparse FIR Filters with Low Group DelayJacek Konopacki0Faculty of Automatic Control, Electronics and Computer Sciences, Silesian University of TechnologyThe aim of the work is to present the method for designing sparse FIR filters with very low group delay and approximately linear-phase in the passband. Significant reduction of the group delay, e.g. several times in relation to the linear phase filter, may cause the occurrence of undesirable overshoot in the magnitude frequency response. The method proposed in this work consists of two stages. In the first stage, FIR filter with low group delay is designed using minimax constrained optimization that provides overshoot elimination. In the second stage, the same process is applied iteratively to reach sparse solution. Design examples demonstrate the effectiveness of the proposed method.https://journals.pan.pl/Content/118874/PDF/17_2754_Konopacki_sk1.pdfdigital filtersfir filters designsparse filtersreduced group delay filters |
| spellingShingle | Jacek Konopacki Design of Sparse FIR Filters with Low Group Delay International Journal of Electronics and Telecommunications digital filters fir filters design sparse filters reduced group delay filters |
| title | Design of Sparse FIR Filters with Low Group Delay |
| title_full | Design of Sparse FIR Filters with Low Group Delay |
| title_fullStr | Design of Sparse FIR Filters with Low Group Delay |
| title_full_unstemmed | Design of Sparse FIR Filters with Low Group Delay |
| title_short | Design of Sparse FIR Filters with Low Group Delay |
| title_sort | design of sparse fir filters with low group delay |
| topic | digital filters fir filters design sparse filters reduced group delay filters |
| url | https://journals.pan.pl/Content/118874/PDF/17_2754_Konopacki_sk1.pdf |
| work_keys_str_mv | AT jacekkonopacki designofsparsefirfilterswithlowgroupdelay |