90 Keysight M8194A 120 GSa/s Arbitrary Waveform Generator User Guide
3 M8194A Soft Front Panel
Resampling Section
• Resampling Mode
It controls the way waveforms are imported and resampled. Please refer
to the description of the Resampling Methodology in the Chapter ,
“Appendix,” on page 163. The following modes are available:
• None: Baseband Sample Rate will be the same as the Source
Sampling Rate. The output waveform will use the same number of
samples as the selected portion of the input waveform. Granularity
requirements will be met by repeating the basic waveform the
minimum number of times so the combined length is a multiple of
the granularity for the current DAC mode.
• Timing: The time window of the input signal (Waveform Length /
Sample Rate) will be used to calculate the best value for the output
record length being a multiple of the granularity for the current DAC
mode according to the output sampling rate defined by the user.
Final output sampling rate will be slightly adjusted to accurately
keep the timing of the original signal.
• Output_SR: The user-defined output sampling rate will be used to
calculate the best value for the output record length being a
multiple of the granularity for the current DAC mode according to
the time window of the input signal. Final time window will be
slightly adjusted to keep the selected output sampling rate. This
change is reflected in the Source Sampling Rate numeric entry field
value.
• Output_RL: The user-defined output Waveform Length will be used
to calculate the best value for the output Sample Rate according to
the time window of the input signal. Waveform Length will be
adjusted to the nearest multiple of the granularity for the current
DAC mode according to the time window of the input signal.
• Zero_Padding: Output Waveform Length is calculated based on the
input waveform time window and the user-defined output sampling
rate. The resulting waveform length will not be, in general, a
multiple of the granularity. To meet the granularity conditions, a
number of zero samples are added until the combined number of
samples is a multiple of the granularity. Output Sample Rate will be
slightly adjusted to keep the input waveform time window.
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