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VARIABLE BANDWIDTH ECG HIGH PASS FILTER
专利权人:
发明人:
申请号:
EP14806067.6
公开号:
EP3065821A1
申请日:
2014.10.10
申请国别(地区):
EP
年份:
2016
代理人:
摘要:
An electrocardiogram high pass filter (25) employs a baseline low pass filter (40), a signal delay (44) and a signal extractor (45). In operation, baseline low pass filter (40) includes a finite impulse response filter (41) and an infinite impulse response low pass filter (42) cooperatively low pass filtering a baseline unfiltered electrocardiogram signal (ECGbu) to output a filtered baseline signal (BSEf). Baseline low pass filter (40) further includes a baseline wander estimator (43) dynamically adjusting a corner frequency of baseline low pass filter (40) as a function of an estimation of any baseline wander within the baseline unfiltered electrocardiogram signal (ECGbu). Signal delay (44) time delays the baseline unfiltered electrocardiogram signal (ECGbu) to output a delayed baseline unfiltered electrocardiogram signal (ECGdbu), and signal extractor (45) extracts the filtered baseline signal (BSEf) from the delayed baseline unfiltered electrocardiogram signal (ECGdbu) to output a baseline filtered electrocardiogram signal (ECGbf).
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