Noise - additional settings
In addition to the base channel and signal settings, the Noise waveform type offers a Filter selection. Select between the filter types:
- None - no filter is used, the output signal is white noise
- Pink - a filter is used to obtain pink noise
- Low pass
Define a low pass filter:
- Order (1 to 10)
- Prototype (Butterworth, Chebysev or Bessel)
FHigh (Hz) - high frequency can be set
Band pass
Define a band pass filter:
- Order (1 to 10)
- Prototype (Butterworth, Chebysev or Bessel)
- High- FHigh(Hz) and low frequency - Flow(Hz) can be set
Order and Prototype can be selected from the drop-down list:
NOTE: For information about Order and Prototype see ->IIR Filter setup.
For noise excitation, it is common to define the upper and lower frequency limit. The lower limit prevents DC excitation and upper limit prevents too high-frequency noise which is higher than the bandwidth of the measurement.