High-Q Bandpass Comb Filter for Mains Interference Extraction
This paper presents a simple digital high-Q bandpass comb filter for power-line (PL) or other periodical interference extraction. The filter concept relies on a correlated signal average resulting in alternating constructive and destructive spectrum interference i.e. the so-called comb frequency res...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Academic Publishing House
2009-12-01
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| Series: | Bioautomation |
| Subjects: | |
| Online Access: | http://www.clbme.bas.bg/bioautomation/2009/vol_13.4/files/13.4_1.02.pdf |
| _version_ | 1811295278825734144 |
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| author | Neycheva T. Dobrev D. Mudrov N. |
| author_facet | Neycheva T. Dobrev D. Mudrov N. |
| author_sort | Neycheva T. |
| collection | DOAJ |
| description | This paper presents a simple digital high-Q bandpass comb filter for power-line (PL) or other periodical interference extraction. The filter concept relies on a correlated signal average resulting in alternating constructive and destructive spectrum interference i.e. the so-called comb frequency response. The presented filter is evaluated by Matlab simulations with real ECG signal contaminated with low amplitude PL interference. The made simulations show that this filter accurately extract the PL interference. It has high-Q notches only at PL odd harmonics and is appropriate for extraction of any kind of odd harmonic interference including rectangular shape. The filter is suitable for real-time operation with popular low-cost microcontrollers. |
| first_indexed | 2024-04-13T05:30:50Z |
| format | Article |
| id | doaj.art-036181e0490f4eac957ae3071966f9c5 |
| institution | Directory Open Access Journal |
| issn | 1313-261X 1312-451X |
| language | English |
| last_indexed | 2024-04-13T05:30:50Z |
| publishDate | 2009-12-01 |
| publisher | Academic Publishing House |
| record_format | Article |
| series | Bioautomation |
| spelling | doaj.art-036181e0490f4eac957ae3071966f9c52022-12-22T03:00:27ZengAcademic Publishing HouseBioautomation1313-261X1312-451X2009-12-01134712High-Q Bandpass Comb Filter for Mains Interference ExtractionNeycheva T.Dobrev D.Mudrov N.This paper presents a simple digital high-Q bandpass comb filter for power-line (PL) or other periodical interference extraction. The filter concept relies on a correlated signal average resulting in alternating constructive and destructive spectrum interference i.e. the so-called comb frequency response. The presented filter is evaluated by Matlab simulations with real ECG signal contaminated with low amplitude PL interference. The made simulations show that this filter accurately extract the PL interference. It has high-Q notches only at PL odd harmonics and is appropriate for extraction of any kind of odd harmonic interference including rectangular shape. The filter is suitable for real-time operation with popular low-cost microcontrollers.http://www.clbme.bas.bg/bioautomation/2009/vol_13.4/files/13.4_1.02.pdfPower-line interferenceComb filterIIR filter |
| spellingShingle | Neycheva T. Dobrev D. Mudrov N. High-Q Bandpass Comb Filter for Mains Interference Extraction Bioautomation Power-line interference Comb filter IIR filter |
| title | High-Q Bandpass Comb Filter for Mains Interference Extraction |
| title_full | High-Q Bandpass Comb Filter for Mains Interference Extraction |
| title_fullStr | High-Q Bandpass Comb Filter for Mains Interference Extraction |
| title_full_unstemmed | High-Q Bandpass Comb Filter for Mains Interference Extraction |
| title_short | High-Q Bandpass Comb Filter for Mains Interference Extraction |
| title_sort | high q bandpass comb filter for mains interference extraction |
| topic | Power-line interference Comb filter IIR filter |
| url | http://www.clbme.bas.bg/bioautomation/2009/vol_13.4/files/13.4_1.02.pdf |
| work_keys_str_mv | AT neychevat highqbandpasscombfilterformainsinterferenceextraction AT dobrevd highqbandpasscombfilterformainsinterferenceextraction AT mudrovn highqbandpasscombfilterformainsinterferenceextraction |