Preview Section
Multi-Tone Preview Toolbar
The waveform preview toolbar includes the icons that provide different functionality
to preview the waveform. For details, see Preview Section
Waveform Preview ToolbarPreview Toolbar.
Compilation and Panel Control Section
Save To File…
Signals can be stored in files either in BIN (for non IQ modes) or IQBIN (for IQ
modes) formats. These files may be reused within the Import Waveform tab. This
button is not active if File Format is "SigStudioEncrypted".
Send To Instrument
Signal will be transferred to the selected segments of the selected channels. The
previous running status for the target instrument will be
preserved but sampling rate may be modified depending on the waveform
requirements.
Set Default
All the multi-tone waveform parameters are set automatically to their
corresponding default values. Entries in the Arbitrary Tone table are not modified
by this button.
Two control sections show-up for equally spaced tone definition (“Equispaced” selected
in the Tone Distribution drop-down list): “Basic Multi-Tone Waveform Parameters” and
“Notch Parameters”.
Basic Multi-Tone Waveform Parameters Section
Start Frequency
It is the frequency of the first tone. If it is set to a value higher than the one in the
Stop Frequency field, this is changed back to the previous Start Frequency.
Stop Frequency
It is the frequency of the last tone. If it is set to a value lower than the one in the
Stop Frequency field, this is changed back to the previous Stop Frequency.
Spacing
It is an indicator only.
Spacing = (Stop Frequency – Start Frequency)/(# of Tones – 1).
# of Tones
It is the total number of tones in the multi-tone signal including the ones in the
notch, if any.
Phase Distribution
Phase for each tone can be set in the three different modes: constant, random, and
parabolic. While constant phase multi-tone signals show a high crest factor, a
random phase distribution results in a much lower value for this parameter while a
parabolic distribution results in a close to optimal (or minimum) crest factor.
Seed
This parameter is associated to the random phase distribution and allows
generating the same or different random sequences for the phases of each tone. It
is also useful to look for a distribution resulting in a desired crest factor value.
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