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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Witthayapradit, S. Chitwong, S. Tumthong, S. |
| Copyright Year | 2006 |
| Description | Author affiliation: Fac. of Eng., King Mongkut's Inst. of Technol., Bangkok (Witthayapradit, S.; Chitwong, S.) |
| Abstract | This paper presents a tracking notch filter with opened-loop architecture for elimination of electric field frequency which can also interfere into ECG waveform. For measuring ECG waveform having the isolated instrumentation amplifier, at here, the quality factor (Q) of this filter is assigned about 8 and the attenuation of frequency noise is around of -35 dB and the gain of amplifier is of 1000. The frequency from frequency noise detector is multiplied by the frequency synthesizer. The clock signal from the frequency synthesizer is used for the switched capacitor network. The performance of the proposed filter is tested with ECG waveform included frequency noise of 50 Hz, 55 Hz and 60 Hz and also with measuring in Lead I of bipolar lead included noise signal of 50 Hz for both cases, that is, before and after through the notch filter circuit in the time and frequency domain. The measured results have been successfully tested. In this paper, the discrete and passive devices are used for the designed circuit |
| Starting Page | 1395 |
| Ending Page | 1398 |
| File Size | 3636202 |
| Page Count | 4 |
| File Format | |
| ISBN | 1424400384 |
| DOI | 10.1109/CCECE.2006.277779 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2006-05-07 |
| Publisher Place | Canada |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Filters Frequency synthesizers Electrocardiography Circuit testing Frequency measurement Noise measurement Circuit noise Attenuation measurement Q measurement Gain measurement Line filter ECG Tracking notch filter |
| Content Type | Text |
| Resource Type | Article |
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