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Teledyne LeCroy WaveExpert 100H Operators Manual User Manual

Page 159

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Wave Expert

WE-OM-E Rev A

157

Parameter Description

Definition

Notes

Amplitude

Measures the difference
between upper and lower
levels in two-level signals.
Differs from pkpk in that
noise, overshoot,
undershoot, and ringing do
not affect the measurement.

top base

On signals not having
two major levels (such
as triangle or saw-tooth
waves), returns same
value as pkpk.

Standard parameter.

Ampl asym

Amplitude asymmetry
between taa+ and taa-

1 - |(taa+ - taa-)|/(taa+
taa-)

Hysteresis argument
used to discriminate
levels from noise in
data.

Available with DDM2
option.

Standard in
DDA-5005A.

ACSN Auto-correlation

Signal-to-Noise provides a
signal-to-noise ratio for
periodic waveforms.

Available with DDM2
option.

Standard in
DDA-5005A.

Area

Integral of data: Computes
area of waveform between
cursors relative to zero level.
Values greater than zero
contribute positively to the
area; values less than zero
negatively.

Sum from first to last of
data multiplied by
horizontal time between
points

Standard parameter..

Base

Lower of two most probable
states (higher is top).
Measures lower level in
two-level signals. Differs
from min in that noise,
overshoot, undershoot, and
ringing do not affect
measurement.

Value of most probable
lower state

On signals not having
two major levels
(triangle or saw-tooth
waves, for example),
returns same value as
min.

Standard parameter.

Cycles

Determines number of cycles
of a periodic waveform lying
between cursors. First cycle
begins at first transition after
the left cursor. Transition

Number of cycles of
periodic waveform

Standard parameter.