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[Discuss-gnuradio] iir filter in spectrum analyzer

From: adib_sairi
Subject: [Discuss-gnuradio] iir filter in spectrum analyzer
Date: Sat, 5 Jun 2010 13:56:34 -0700 (PDT)

Dear all,
I have a question regarding the usage of single_pole_iir_ff filter in the
fftsink_nongl.py which is used to construct the spectrum analyzer in
gnuradio-3.1.3. what is the usage of this iir filter since the alfa value is
equal to 1 which give the value of input the same as the value of the output
(refering to the single pole iir filter explanation in
-- please fixme if i am wrong). in the previous post, firas told that this
filter is used for the averaging purposes
but what is the value that it average? 

Mohd Adib Sarijari
Universiti Teknologi Malaysia
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