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From: | Christophe Seguinot |
Subject: | Re: Stucked on a trivial interpolation issue |
Date: | Mon, 23 Mar 2020 18:24:47 +0100 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 |
First answer to myself :
Question:
Hi
I'm stucked on a trivial interpolation problem.
I was trying to interpolate a binary source ( in the attached flowgraph I've witched to a rectangular wave source to analyse and explain my problem).
- So I've a rectangular source with 4 sample/period : 1 1 1 1 -1 -1 -1-1 1... .
- I interpolate whith a 3 interpolation factor
- I was guessiong to obtain : 1 1 1 / 1 1 1 / 1 1 1 / 1 1 1 / -1 -1 -1/ -1 -1 -1/ -1 -1 -1/ ...(/ used to separate group of 3 samples)
- Instead I get: 1 0 0 / 1 0 0 /1 0 0 /1 0 0 /-1 0 0 /-1 0 0 /-1 0 0 /-1 0 0 /
This seems wrong as compared to paragraph "E2.3. A Note on Resampling" on this GNURadio Wiki tutorial
Does I made something wrong, or Does I've been infected by Covid19.
Sincerely,
Christophe confined at home since 7 days (North of France)
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