M8195A User Interface 2
Keysight M8195A Revision 2 – Arbitrary Waveform Generator User’s Guide 97
I/Q Toggle buttons
I/Q selection toggle buttons for each channel will be shown when the file
containing an I/Q waveform is selected for import. In-Phase (I) and Quadrature
(Q) components can be independently assigned to each channel.
Generate I/Q Data
This checkbox is only enabled for the import of Signal Studio encrypted files.
If checked, baseband (I/Q) signals will be generated.
Segment Number
Target segment for each channel can be defined independently. This field is
configurable only for channels sourced from ‘extended’ memory. The segment
range is 1 to 16777216. For channels sourced from ‘Internal’ memory, the
segment is always set to 1, and it displays the text ‘Internal’.
Resampling Section
Resampling Mode
It controls the way waveforms are imported and resampled. Please refer to the
description of the Resampling Methodology and Resampling Modes in the
Appendix chapter. 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.
Truncate: 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 samples is
removed until the resulting number of samples is a multiple of the
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