Low Pass Filters - Reduce Electrical Noise on an Analog Input Signal.
noise - Digital low-pass filters; best practice application - Signal Processing Stack Exchange
circuit analysis - DC coupling - How can I reduce low frequency noise? - Electrical Engineering Stack Exchange
Low-Frequency Image Noise Removal Using White Noise Filter | Semantic Scholar
Nick Mark MD on Twitter: "A few more details about filters in ECGs: - *DIAGNOSTIC* ECGs are typically 0.05 to 150 Hz - *MONITORING* ECGs are typically 0.67 to 40 Hz (sometimes