Teledyne LeCroy AORM - Advanced Optical Recording Measurements - Manual (Page 102)

100
ISSUED: June 2013 923133 Rev A
0 1 2 3 4 5 6 7 8 9 10
4
3
2
1
0
1
2
3
4
Optical Data Signal
Threshold
Optical Data Acquisition
Time (.5 us/div)
Amplitude (10 mV/div)
BASE AND TOP CALCULATION DETAILS
The base and top are designed to emulate results in the past obtained from persistence plots. In
general, the top was calculated by examining the most intense region near the top of a waveform
in an eye-pattern persistence map. The AORM package improves on this in that the tops of all
pits are calculated independently: rogue amplitude variations in the waveform can be identified.
The waveform in the next figure contains two pits. We need only consider the first of these.