measure ECGs and applied different filtering techniques.
1. In what circumstances is analog filtering (hardware filtering) better than digital filtering (software filtering)? What are the advantages/disadvantages to both?
2. What are the limitations of the moving average filter used in digital filtering?
3. What happens to an ECG signal when a triggered average is applied? (I can see from the graphs that the peaks directly before and after the triggered peak become more and more blurry, but I don't understand what is happening to the noise when triggered averaging is applied.
4. How to apply triggered averaging using a simple circuit.