Agilent Technologies E8267D PSG User Manual
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Chapter 9
Multitone Waveform Generator
Creating, Viewing, and Optimizing Multitone Waveforms
4.
Press
Done
.
5.
Press
Apply Multitone
.
6.
Press
More (1 of 2) > ARB Setup > Waveform Utilities > Waveform Statistics > Plot CCDF
.
You should now see a display that is similar to the one shown in
. The CCDF plot
displays the peak to average characteristics of the waveform with all phases set to zero.
Figure 9-7
CCDF Plot with Fixed Phase Set
7.
Press
Mode Setup > Initialize Table
.
8.
Press
Initialize Phase Fixed Random
to Random.
9.
Press
Random Seed Fixed Random
to Random.
10. Press
Done
.
11. Press
Apply Multitone
.
12. Press
More (1 of 2) > Waveform Statistics > Plot CCDF
.
You should now see a display that is similar to the one shown in
. The CCDF plot
displays the peak to average characteristics of the waveform with randomly generated phases and
a random seed.
The random phase setup simulates the typically random nature of multitone waveforms. Notice
that randomly distributed phases result in a much lower peak to average ratio than fixed phases.
An increase in the number of tones with random phases will decrease the probability of a
maximum peak power occurrence.
Peak
Power