next up previous
Next: Frequency Domain Up: Results Previous: Results

Time Domain

Using the analysis||plot pulses window in LC, we can take a look at all the data collected by the probes. A glance at the raw voltages (figure 4) clearly shows the overlap of the incident and reflected pulse: both the ``narrow'' and ``narrow.reflected'' probes see both the incident and reflected signals. By going back to define||pulses, we can place certain time ranges into each pulse, so that each pulse set contains only the data for a single pulse.


  
Figure 4: ``raw'' plot of LC simulation voltage probes
\begin{figure}
\epsfig {file=pulseraw.eps,width=0.7\linewidth}\end{figure}


  
Figure 5: ``time'' plot of LC simulation voltage probes, after time ranges are specified
\begin{figure}
\epsfig {file=pulsetrimmed.eps,width=0.7\linewidth}\end{figure}

The timesteps containing each pulse are specified in the pulse start and pulse end fields, which can be set manually or by experimenting with the Guess From Data and Set From Graph commands. The time ranges should be chosen so that each pulse definition has a clearly specified signal. After this, using analysis||plot pulses again and looking at ``time'' plots instead of ``raw'' plots (figure 5) we can easily see which signal corresponds to what pulse.


next up previous
Next: Frequency Domain Up: Results Previous: Results
Gary Haussmann
8/4/1997