Teledyne LeCroy AORM - Advanced Optical Recording Measurements - Manual (Page 57)

AORM Software Package
923133 Rev A ISSUED: June 2013
55
30 20 10 0 10 20 30
0
200
400
600
800
3T Edge Shift
4T Edge Shift
5T Edge Shift
Superposition of Edge Shift Distributions
Histogram of Edge Shifts
Edge Shift in Percent
Popul
at
ion
The 3T, 4T, and 5T distributions are obtained when the Edge Shift custom parameter is configured for
single n values and histogrammed. The final superposition distribution is obtained when the Edge Shift
custom parameter is configured for ranges of n values (in this case 3T to 5T) and histogrammed.
The value displayed on the custom parameter line (with statistics off) is the mean of any of the resulting
distributions for the last acquisition only. This average edge shift value is calculated internally without
actually histogramming the values. The values displayed in ‘nT Table’ mode are the mean of the Edge
Shift distributions resulting from each nT distribution for the last acquisition.
Note: The standard deviation of superimposed Edge Shift distributions is not the same as Timing Jitter.