Pre-Processing Controls - Teledyne LabMaster 10 Zi Series Operator's Manual

Pre-Processing Controls

Pre-Processing means "before Math processing." Pre-Processing
controls provide the following functions for your respective channel:

Averaging - Specifically performs continuous averaging or the
repeated addition, with unequal weight, of successive source
waveforms. It is particularly useful for reducing noise on signals
drifting very slowly in time or amplitude. The most recently
acquired waveform has more weight than all the previously
acquired ones: the continuous average is dominated by the
statistical fluctuations of the most recently acquired waveform.
The weight of old waveforms in the continuous average gradually
tends to zero (following an exponential rule) at a rate that
decreases as the weight increases.

Deskew - Adjusts the horizontal time offset by the amount
entered. The valid range is dependent on the current timebase
setting. Pre-processing deskew and the Math deskew function
perform the same activity.

Invert - Invert the waveform for the selected channel.

Cable De-Embedding - When making measurements on serial
data signals, losses in the cables used in the test setup can reduce
the accuracy of your signal (for example, signal amplitude and
risetime), as well as introduce Inter-Symbol Interference. These
cable effects can dramatically alter your serial data
measurements and potentially create mask test violations. The
LM10Zi-GSM-E Rev A
Getting Started Guide
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