Digi-Frame DF-1044r Manual de usuario descargar pdf (Pagina 33)

100

101

Acquisition and Setup

R&S

RTO

17User Manual 1316.0827.02 ─ 06

Fig. 2-4: Waveforms acquired with different sample rates

This means that the sample rate must be set to a value 3 to 5 times the fastest frequency

component of the signal. A higher sample rate increases signal fidelity, increases the

chance to capture glitches and other signal anomalies, and improves the zoom-in capa-

bilities.

2.1.2.2 Acquisition Settings

The sample rate can be the same as the constant ADC sample rate, or higher, or lower.

To get a higher sample rate, methods of resolution enhancement are used: interpolation

and equivalent time sampling. To reduce the sample rate, decimation methods help:

sample, peak detect, high resolution and RMS.

As digital waveform data is stored in the memory, and the memory can save many wave-

form records, further waveform arithmetic processing is possible: average and enve-

lope waveforms are resulting waveforms, created from a composite of sample points

taken from multiple acquisitions.

The R&S RTO provides the following acquisition features:

●

You can combine resolution enhancement and waveform decimation modes with

waveform arithmetic.

●

You can display up to three waveforms from one input signal and apply different

decimation and arithmetic to each waveform.

Basics

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Digi-Frame DF-1044r Manual de usuario Pagina 33

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