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AWG2021 User Manual
Compress. In this case the value of the shift must be less than one half the
size of the area surrounded by the left and right vertical bar cursors. The
section that exceeds the position of one half the region is lost after the shift if
the Data Value item (described below) is set to Replace.
H Shift Scale Value. When shifting waveform data, it is possible to specify a
Shift Scale Value with a precision that exceeds that of the sampling points.
In the AWG2021 arbitrary waveform generator, values may be specified with
a resolution as fine as
1
/
1000
point. However, there are cases where it is not
possible to realize a shift of that precision due to the form of the waveform
itself. In particular, changes in the lowest digit of the shift value will not be
reflected in the output unless the amplitude of the original waveform spans
the full scale of the data representation.
NOTE. Since data values between the data points are calculated by interpolation
when shifting by a fractional value, certain characteristics of the original
waveform may be lost. Therefore, a filter must be inserted to prevent aliasing.
If the changes in the waveform are extremely smooth, fractional shift amounts
may not result in the intended effect.
1. Specify the region to be shifted with the left and right vertical bar cursors,
and select the Region Shift... item on the fourth page of the side menu
(More 4 of 4).
2. Select the shift type by pressing the sub menu Type button.
3. Select Shift Scale Value from the sub menu.
4. Enter the shift amount using either the general purpose knob or the numeric
keys. The shift value can also be displayed as a time value.
5. If other settings related to the shift need to be specified, select the Config...
item from the sub menu. See the “Other Shift Settings” item below for more
information.
6. Select Execute from the sub menu. The waveform in the edit region will be
shifted with the specified conditions.
H Other Shift Settings. The following parameters can be set from the Config...
item.
Interpolation Selecting the interpolation method
Data Value Handling of overlapping regions in the shift result
Cursor Point Interpolation of the data on the cursors
Smooth +/– Points Setting the smoothing width at the data boundary
positions