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[Discuss-gnuradio] Exact calculations in gr.interp_fir_filter_ccc
From: |
Achilleas Anastasopoulos |
Subject: |
[Discuss-gnuradio] Exact calculations in gr.interp_fir_filter_ccc |
Date: |
Mon, 5 Apr 2010 13:17:03 -0400 |
I made the following simple example using the fir interpolation filter:
input sequence x=[1,2,3,4,5]
interpolation = 1
channel h=[1]
output sequence y=[1,2,3,4,5]
channel h=[1,0]
output sequence y=[1,2,3,4,5]
so far so good.
Now I changed to
interpolation = 2
channel h=[1]
output sequence y=[0,1,0,2,0,3,0,4,0,5]
channel h=[1,0]
output sequence y=[1,0,2,0,3,0,4,0,5,0]
why are the two last cases different?
thanks
Achilleas
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Achilleas Anastasopoulos <=