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Before Smoothing

After Smoothing

Figure 3 ￿58: Smoothing

NOTE. Since smoothing is equivalent to low pass filtering, features of the original waveform can be lost resulting in significant changes to the waveform. To acquire appropriate output waveforms, experiment with a variety of values for the Smooth +/± Points parameter.

￿Side Effects from Shifting. The left side of Figure 3 -59 shows data prior to shifting and the right side shows the result of shifting the data between the cursors indicated with solid lines to right by 0.5. Since shifting to right by 0.5 requires determining the data at the 0.5 location to left, the data in Figure 3 -59 is interpolated to derive the data at locations 0.5 to left from the positions of each data point. Linear interpolation is used in this case.

Original Data

Data Shifted to Right by 0.5

Figure 3 ￿59: Data Shifting

When this data is output through an appropriate filter, the waveform will be shifted to right by 0.5 point units. When this shift is performed, the data point at the position of the left cursor is lowered. This is a side effect of the interpolation process. There are several techniques for preventing this data lowering phenomenon as follows.

1) Increase the size of the area.

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AWG2021 User Manual