SIRIUS
®
TECHNICAL REFERENCE MANUAL
Digital Filtered: the final digital FIR filter (with a sharp damping) further attenuates all signals above (f
f
),
so that we get an excellent measurement result over the whole frequency range (i.e. the effect of the
aliasing is negligible).
Important
Illustration below “Filtering components in SIRIUS® DualCore and HD modules” shows an
overview of the components in the SIRIUS® DualCore and HD modules: after the input amplifier
there is an analog filter followed by the ADC which uses oversampling and includes a Digital
ADC Filter, so that we can get excellent aliasing free measurement results.
Filtering components in SIRIUS® DualCore and HD modules
SIRIUS
®
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