SIRIUS
®
TECHNICAL REFERENCE MANUAL
80 kHz and 25 kHz AAF
See illustration above “ 80 kHz and 25 kHz AAF ” with measured characteristics of the FIR filters with
sample rates set to 50 kHz and 200 kHz.
6.1.6.3. IIR filters
The last available filters are the IIR filters. In DEWESoft® on the SIRIUS-HS we can choose between 8
different filters with variable orders.
As with previous filters, an anti-aliasing filter with zero phase distortion can be added in tandem with
this filter, if enabled in the advanced hardware settings.
300 Hz Bessel IIR filters with the “Enable alias free filtering on Sirius-HS” option turned on and off
Example
Measurement of FIR filter
SIRIUS
®
V20-1 294 / 336
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