1 / 21
Download Presentation

Moving Average Filters for Signal Processing: A Comprehensive Guide

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 3.3.2 Moving-average filter Moving-window averaging filter = Moving-average (MA) filter 3.3.1 Synchronized average  Ensemble average 3.3.2 Moving averaging  Temporal (time) average Ergodic : Temporal statistics may be used instead of ensemble statistics

  2. Signal flow graph Figure 3.15

  3. An example Figure 3.16

  4. Suitable for PCG and EMG Not suitable for ECG (attenuation not high enough) Figure 3.17 Magnitude and phase response of the Hanning filter

  5. Fs = 1 kHz Moving window Fs = 1 kHz

  6. M = 8 Fs = 1 kHz 60 Hz 500 Hz

  7. M = 26 60 Hz

  8. M=101 60 Hz

  9. Frequency response of MA 8, 26, 101

  10. Effect of N Fs = 1 kHz Original MA 8 MA 26 MA101

  11. Transfer function of MA8

  12. Transfer function of MA101

  13. Signal flow graph

  14. Estimation of signal frequency

  15. Figure 3.18

  16. Figure 3.19

  17. Figure 3.20

  18. Figure 3.21

More Related