Respiration Detection Implemented in Multichannel ECG Front End Module: A Preliminary Study

A new generation single-chip low-power ECG analog front-end module (ADAS1000) is used to develop a system for 12-lead high-resolution ECG and impedance-based respiration acquisition. The developed respiration rate (RR) measurement algorithm is validated on a test respiration database, including more than 650 reference 15s-window sliding of 5s with annotated respiration periods and assigned to apnea, normal, deep breathing episodes acquired in leads I and II. The mean RR error is found within 0.7 to 4.7 bpm, significantly inversely related with the respiration amplitude. Keywords - impedance, respiration, analog front end ECG