Specifications

Version 1.1 rev Jan 2013
Page 86
iXon Ultra
, Features and Functionality
3.11 - SPURIOUS NOISE FILTER
It can be desirable to optionally lter spurious EM-amplied background events to give as ‘black’ a background as
possible, eradicating any remaining ‘salt and pepper’ noise. It is important to utilize noise selection and lter algorithms
that are intelligent enough to accomplish this task without impacting the integrity of the signal itself. This is realized
through the new Spurious Noise Filter (SNF) functionality of iXon Ultra, which offers the user a choice of advanced
algorithms to try. SNF can be applied either in real time or as a post-processing step. Like the count convert option, the
real time processing of the lters is performed in hardware, thereby providing minimal impact on the display rate. The
options available to the user for using Spurious Noise lter are as shown hereunder:
• Median(availableinRealTime&Post-Processing)
• LevelAbove(availableinRealTime&Post-Processing)
• InterquartileRange(availableinRealTime&Post-Processing)
• NoiseThreshold(availableinPost-Processing)
These can be selected from the Real Time or Post Process options, e.g.
NOTE: Andor spurious noise lters’ options make use of advanced algorithms that offer excellent discrimination
of spurious noise events with minimal effect on signal integrity.