Keysight Technologies 3458A Guide D'utilisation page 218

5 Digitizing
Viewing Sampled Data
The program on the following page plots digitized data to the controller's CRT
(this particular program uses sub-sampling and the subroutine Plot_it does the
actual plotting). This program is helpful when developing digitizing programs
(especially when sub-sampling) since it allows you to see the data being
captured. Since this program simply draws vectors between the samples (linear
interpolation), it works well when the sampling rate is greater than 10 times the
frequency of the signal being measured. If the sampling rate is less than 10 times
the frequency of the input signal, this program will plot an incorrect representation
of the input signal.
The 3458A Option 005 Waveform Analysis Library is a software package
NOTE
designed to capture and process digitized data. It contains routines that initialize
the system, capture data, compare data, compute parameters on the data,
perform Fourier transforms on the data, and plot/output the data. Contact your
Keysight Sales Office for more information.
Figure 5-13
218
Figure 5-13 shows a typical plot produced by this program.
Typical plotted waveform
Keysight 3458A User's Guide