1. 3.4.3 Notch and comb filters To remove periodic artifacts
(periodic in the time domain)
(discrete in the frequency domain)

2. 3.4.3 Notch and comb filters To remove periodic artifacts
(periodic in the time domain)
(discrete in the frequency domain)
Figure 3.40

3. DC gain = ?

4. Figure 3.41

5. Figure 3.42

7. Figure 3.43

8. Figure 3.44

9. Figure 3.45

10. 3.5 Optimal filtering: the Wiener filter

11. 3.6 Adaptive filters for removal of interference

12. 3.7 filter selection Synchronized averaging:
Signal: stationary or cyclo-stationary
Signal: Periodic or quasi-periodic
Synchronization is possible
Noise: stationary, random, uncorrelated with the signal, zero mean

13. MA averaging:
Signal: stationary (over the window duration)
Noise: stationary (over the window duration) , zero mean
Signal: low-frequency
on-line, real-time

14. Frequency-domain fixed filter:
Signal: stationary
Noise: stationary
signal is band-limited or noise is band-limited

15. Optimal filter:
* Signal: stationary

16. Adaptive filter:
Signal: not necessarily stationary
uncorelated between signal and noise
No information about the signal and the noise
Reference is available

17. Adaptive filter:

18. HW

19. 5.
N = 2 - 8
Fc = 0.5 – 5