Elektra Beckum NM20600A-A User Manual
MCE windows and dialogs
MCE User’s Guide
24
2004-05-17
NM20600A-A
Figure 13 The pre-processing dialog
The left side of the window shows controls that you can use to pre-process the data.
With the filter frame you can low-pass filter the data, with the baseline frame you
can compensate for the DC level and slow drifts. With the projection frame you can
down-sample the data and select the interesting period for the calculation. and set
bad channels and noise projection.
With the filter frame you can low-pass filter the data, with the baseline frame you
can compensate for the DC level and slow drifts. With the projection frame you can
down-sample the data and select the interesting period for the calculation. and set
bad channels and noise projection.
The right side of the window shows a preview of the original data (blue) and pro-
cessed data (blue). You can zoom into the display with the left mouse button. The
preview frame lets you either select the channel or to view the amplitude or fre-
quency response of the filter. The latter can be used to check for a good down-sam-
pling ration; the
cessed data (blue). You can zoom into the display with the left mouse button. The
preview frame lets you either select the channel or to view the amplitude or fre-
quency response of the filter. The latter can be used to check for a good down-sam-
pling ration; the
[Rescale]
button reverts to automatic scaling.
See chapter “Selecting the data file and pre-processing” on page 4 for additional
instructions using this dialog.
instructions using this dialog.