Title :
Tracking Based Baseline Restoration for Acquisition of Impedance Cardiogram and Other Biosignals
Author :
Pandey, Vinod K. ; Naidu, Navaneetha Krishnan S ; Pandey, Prem C.
Author_Institution :
Bio Sch., IIT Bombay, Powai Mumbai
Abstract :
Most of the biosignals have a baseline which may drift over a large range compared to the excursion of the signal of interest. To make effective use of the input dynamic range of the signal acquisition setup, this offset drift needs to be cancelled. The circuit reported here uses amplitude tracking technique for estimation and removal of the baseline drift. This circuit is independent of the processor to which the signal acquisition unit is interfaced
Keywords :
bioelectric phenomena; cardiology; data acquisition; medical signal processing; signal restoration; amplitude tracking; baseline drift estimation; baseline drift removal; biosignal acquisition; impedance cardiogram; tracking based baseline restoration; Bioimpedance; Cardiography; Cardiology; Clocks; Counting circuits; Dynamic range; Impedance; Pulse amplifiers; Signal processing; Signal restoration; Baseline restoration; Biosignal acquisition; Impedance cardiogram; Offset drift cancellation;
Conference_Titel :
Engineering in Medicine and Biology Society, 2005. IEEE-EMBS 2005. 27th Annual International Conference of the
Conference_Location :
Shanghai
Print_ISBN :
0-7803-8741-4
DOI :
10.1109/IEMBS.2005.1617230
