Go to Signals>Filter signal to filter a signal. The following windows pops up:
The parameters are :
- Raw signal : The signal to be filtered
- Filter type : first field can be high-pass, low-pass, band-pass or band-stop. Second field is filter type, FIR, Butterworth (default), Chebyshev Type I or II or Elliptic.
- Cut-off frequency : Low and/or high cut-off frequencies in Hz.
- Order : order of the filter
- Frequency Response : Shows the frequency response of the filter in a new figure.
- Add view : Add a temporal view of the filtered signal.
- Window : If a view is added, this is the number of the window where to add it.
- Position : Position of the view in the window
The Frequency Response button allow to visualize the frequency response of the filter:
