On Tue, Dec 8, 2015 at 9:30 AM, R Schumacher
<<mailto:rays@blue-cove.com>rays@blue-cove.com> wrote:
We have a function which describes a frequency
response correction to piezo devices we use. To
flatten the FFT, it is similar to:
Cdis_t = .5
N = 8192
for n in range(8192):
 B3 = n * 2560 / N
 Fc(n) = 1 /
((B3/((1/(Cdis_t*2*pi))**2+B3**2)**0.5)*(-0.01*log(B3) + 1.04145))
In practice it really only matters for low frequencies.
I suggested that we might be able to do a time
domain correction as a forward-reverse FFT
filter using the function, but another said it
can also be applied in the time domain using a bilinear transform.
So, can one use
<http://docs.scipy.org/doc/scipy-0.16.0/reference/generated/scipy.signal.bilinear.html>http://docs.scipy.org/doc/scipy-0.16.0/reference/generated/scipy.signal.bilinear.html
and, how does one generate b,a from the given
Fourrier domain flattening function?
This should go to either
<mailto:scipy-user@scipy.org>scipy-user@scipy.org
or <mailto:scipy-dev@scipy.org>scipy-dev@scipy.org
Chuck
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R Schumacher