Pjinvfft – Teledyne LeCroy WavePro Automation Command User Manual

Page 334

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Automation Command and Query Reference Manual - Control Reference

ShowPeakThreshold

Bool

A yellow line showing the threshold for detecting a peak is placed on the jitter spectrum when this
control is set to True. Peaks that break the threshold are considered PJ; in Spectral jitter
decomposition energy below the threshold is considered random jitter. (Note that any sufficiently
broadband jitter source, that raises the entire floor from DC or some very low frequency to some
higher freuqency, may raise the threshold and therefore be counted as RJ in Spectral decomposition.
Cross talk can be such a broadband source. See app.SDA2.JitterMeasure.Parameters.JitterModel for
more information.)

Description

ShowPjIFFT

Bool

When this control is set to True, an inverse FFT of the PJ spectrum is displayed. Since the PJ
spectrum is windowed, the overall envelope will be the window function's shape. If there is dominant
low frequency component in PJ it should be clearly visible in the PJ IFFT. The peak-to-peak of the PJ
IFFT will agree with the PJ parameter exactly. Looking at the PJ IFFT might be able to show if several
PJ frequencies actually are harmonics, in that case the shape in the PJ IFFT will be repeating.

Description

PJINVFFT

app.SDA2.JitterMeasure.Spectrum.PjInvFFT

AxisXRotation

Integer

From -90 to 90 step 1

Range

AxisYRotation

Integer

From -90 to 90 step 1

Range

This control is used only when Persisted is true and Persistence3d is true. It controls rotation about
the Y axis of the view being persisted.

Description

AxisXRotation

Integer

AxisYRotation

Integer

ClearSweeps

Action

LabelsPosition

String

LabelsText

String

Persist3DQuality

Enum

PersistDotJoined

Bool

Persisted

Bool

Persistence3d

Bool

PersistenceMonoChrome

Bool

PersistenceSaturation

Integer

PersistenceTime

Enum

ShowLastTrace

Bool

UseGrid

String

View

Bool

ViewLabels

Bool

1-320

918501 RevA

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