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Resolution Enhancement

Resolution enhancement is a technique for increasing the effective vertical resolution of the scope at the expense of high-frequency detail. The vertical resolution is often called the Effective Number of Bits (ENOB). Selecting resolution enhancement does not change the scope’s sampling rate or the amount of data available.

For this technique to work, the signal must contain a very small amount of Gaussian noise, but for many practical applications this is generally taken care of by the scope itself and the noise inherent in normal signals.

The resolution enhancement feature is a flat moving-average filter. This acts as a low-pass filter with good step response characteristics and a very slow roll-off from the pass-band to the stop-band.

Resolution enhancement is available for all Pico USB PC Oscilloscopes using PicoScope 6 software and adds up to 4 bits to the effective resolution of a scope. For example, it can boost the effective resolution of a PicoScope 5203 or 5204 from 8 bits to 12 bits, and the 12-bit PicoScope 3224 and 3424 high-resolution scopes can deliver up to 16 effective bits. The resolution enhancement is selectable in increments of 0.5 bit.

enhanced resolution

Enhanced resolution in PicoScope 6

Resolution enhancement is available for:

  • PicoScope 2000 Series
  • PicoScope 3000 Series
  • PicoScope 4000 Series
  • PicoScope 5000 Series
  • PicoScope 6000 Series

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