6 53220A/53230A Math, Graphing, and Data Logging
206 Keysight 53220A/53230A User’s Guide
Smoothing data
Measurements can be “smoothed” and scaled prior to performing math
operations on the incoming data.
To red uce random noise, a moving average (boxcar) filter can be inserted into the
data path (Figure 6-1). To enable the filter and specify the number of readings
(subset) to average, the following commands are used:
CALCulate[1]:SMOothing[:STATe] {OFF|ON}
CALCulate[1]:SMOothing[:STATe]? (query form)
CALCulate[1]:SMOothing:RESPonse {SLOW|MEDium|FAST}
CALCulate[1]:SMOothing:RESPonse? (query form)
ON enables the moving average filter - placing it in the data path. OFF disables the
filter. A reset (*RST) or instrument preset (SYSTem:PRESet) disables the filter.
The number of readings to average is specified as:
SLOW - 100 readings: with +100 ppm change required to reset filter
MEDium - 50 readings: with +300 ppm change required to reset filter
FAST - 10 readings: with +1000 ppm change required to reset filter