a typical ecg signal is in the frequency range of 1-50 hz. assume you have sampled the signal at 1khz. (a) what filter would you use to remove any residual noise? (b) what magnitude response should the filter have? give the ideal stop and passbands along with the upper and lower frequencies of each band. (c) what phase response is desirable? (d) how can you ensure such a phase response?
