2 General Operating Information
68 Keysight U2020 X-Series User’s Guide
Tilt measurement
Tilt measurement is used to measure the amount of tilted droop (A
D
) of the input
signal as shown in Figure 2-30.
Figure 2-30 Tilt measurement graph
Pulse amplitude, A
M
The pulse amplitude quantity is determined by the intersection of a line passing
through the points on the rising edge, where the instantaneous value reaches 10%
and 90% of A
M
and a straight line that is the best least-squares fit to the pulse in
the pulse-top region.
Trailing edge (last transition) amplitude, A
T
The trailing edge amplitude quantity is determined by the intersection of a line
passing through the points on the falling edge where the instantaneous value
reaches 90% and 10% of A
T
, and the straight-line segment fitted to the top of the
pulse in determining A
M
.