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Signal Processing Main

Smoothing signals.

To create a processed signal use the menu command 'Signal Processing->Smooth Signal'. This will bring up a new dialogue. Enter the direction type and range of smoothing into the fields and click 'OK' to create a smoothed signal.

A signal can be smoothed in the time and/or x direction using one of upto three windows. The two main windows are the rectangular and triangular windows. For these windows the parameter halfwidth defines the number of non zero points on either side of the main point.

Their effect on a single point are shown in the two pictures below.

The third window is an exponential window. This is only available for smoothing by index. The halfwidth parameter is the number of points it takes for the window height to drop to half the central value, as shown in the figure below.


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