Hi:
i have a project to design ECG system:
read ECG signal by using (DAQ)data aquestion and the Signal processing(bandpass& notch filter) will be done by using matlab program.
I was Intended to use instrument amplifier to obtain I,II or III signals
as this figure:
but my supervisor told me:
amplify each lead separately (LA,RA or LL , and RL as reference) and read it by DAQ
then inside MATLAB we can obtain I,II and III signals,
mathematically according to these equations:
I=LA-RA,II=LL-RA and III=LL-LA
so,what's your opinion about this method(of my supervisor), can succeed??
should i use instrument amplifier or just operational amplifier?