On Jun 26, 7:19 am, "mitrobge" <dimitris.mitrovge...@gmail.com> wrote:
> In a FIR filter the scaling of the input in order to avoid overflow at the
> output can be specified by using the 1st norm of the vector of
> coefficients.
> How to use this relation in a multistage interpolator with polyphase
> decomposition?
Think through the operation in the context of the conditions would
create the largest values, either at the output or at some
intermediate point.
Reply by mitrobge●June 26, 20082008-06-26
In a FIR filter the scaling of the input in order to avoid overflow at the
output can be specified by using the 1st norm of the vector of
coefficients.
ymax=xmax*scaling*norm_1
for xmax=ymax=1
scaling=1/norm_1
How to use this relation in a multistage interpolator with polyphase
decomposition?
Thanks