An edge can be detected when the waveform is either rising or falling past Midref. The direction of the edges alternates, that is, if Edge1 is
rising, Edge2 will be falling.
A rising edge has positive polarity. A falling edge has negative polarity.
Missing or out-of-range samples
If some samples in the waveform are missing or off-scale, the measurements will interpolate between known samples to make an
appropriate guess as to the sample value. Missing samples at the ends of the measurement record will be assumed to have the value of
the nearest known sample.
When samples are out of range, the measurement will give a warning to that effect (for example, CLIPPING) if the measurement
could change by extending the measurement range slightly. The algorithms assume the samples recover from an overdrive condition
instantaneously.
Math waveforms
Once you have acquired waveforms or taken measurements on waveforms, the instrument can mathematically combine them to create a
waveform that supports your data-analysis task. For example, you might have a waveform clouded by background noise. You can obtain
a cleaner waveform by subtracting the background noise from your original waveform. Or, you can integrate a single waveform into an
integral math waveform
With spectral analysis you can analyze waveforms in the frequency domain.
This instrument supports mathematical combination and functional transformations of waveforms it acquires.
You create math waveforms to support the analysis of your channel and reference waveforms. By combining and transforming source
waveforms and other data into math waveforms, you can derive the data view that your application requires. Create math waveforms that
result from:
• Mathematical operations on one or several waveforms: add, subtract, multiply, and divide.
• Functional transformations of waveforms, such as integration, differentiation, and so on.
• Spectral analysis of waveforms, such as testing impulse response.
Math waveform elements
You can create Math waveforms from the following:
• Channel waveforms
• Reference waveforms
• Measurement scalars (automated measurements) that measure channel, reference, or math waveforms.
• Other math waveforms
Measurement concepts
3 Series Mixed Domain Oscilloscope Printable Help
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