Peak Detect; High Resolution - Rigol DS6000 Series User Manual

RIGOL
4 To Set the Sample System

Peak Detect

In this mode, the oscilloscope acquires the maximum and minimum values of the
sample interval signal to get the envelope or the narrow pulse of the signal that
might be lost. Use this mode to avoid signal confusion at the expense of
exaggerating the noise.
In this mode, the oscilloscope can display all the pulses whose pulse widths are at
least as wide as the sample period.

High Resolution

This mode uses a kind of ultra-sample technique to average the neighboring points
of the sample waveform to reduce the random noise on the input signal and generate
much smoother waveforms on the screen. This is generally used when the sample
rate of the digital converter is higher than the save rate of the acquisition memory.
Note: "Average" and "High Res" modes use different averaging methods. The former
uses "Waveform Average" and the latter uses "Dot Average".
4-4 DS6000 User's Guide