2.2 Real-time averaging mode (AVG option)
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Acqiris SA230E User's Manual
2.2 Real-time averaging mode (AVG option)
Introduction
Averaging signals reduces random noise effects, improving the signal-to-noise ratio, as well as
increasing resolution and dynamic range.
The averaging is performed by accumulating successive recorded waveforms.
The number of waveforms to be accumulated and the record length are defined by user. The
waveforms are successively acquired and stored in a record. The accumulation of all the waveform
records results in an "accumulated record" which is provided in output.
The main features are:
Averaging from 1 up to 65k, in steps of 1 trigger
Effective acquisition length up to 1M Samples.
Noise suppressed accumulation (NSA)
Self-Trigger mode for minimal synchronous (pattern) noise
Baseline stabilization algorithm and digital offset
Decimation factors of 2, 4, 8 or 16 with associated low pass filters, enabling decimated
sampling rates at 2 GS/s, 1 GS/s, 500 MS/s, and 250 MS/s.
Timing sequence
The minimum time between summed events depends on the trigger
Rearm Time
as specified in the
SA230E datasheet.
Figure 2.3 -
Timing sequence in real-time averaging mode, for a single accumulation.
Figure 2.4 -
Timing sequence in real-time averaging mode, in a multi-record mode with successive accumulations.
Supported readout modes:
