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Re: [Discuss-gnuradio] SSB Phasing - working at last.

From: Ramakrishnan Muthukrishnan
Subject: Re: [Discuss-gnuradio] SSB Phasing - working at last.
Date: Sat, 26 Feb 2005 19:40:38 +0530
User-agent: Gnus/5.1006 (Gnus v5.10.6) Emacs/21.3 (gnu/linux)

 || On Fri, 25 Feb 2005 20:34:31 -0800
 || Eric Blossom <address@hidden> wrote: 

 eb> Thanks.

 eb> Any reason you're not using the gr.hilbert_fc block?
 eb> I combines the hilbert transformer and the delay in one block.


Here, the data to delay and data to hilbert filter are entirely different. One 
is the
I path and the other one is the Q path, where in the gr.hilbert_fc case, it is 
the same
data input. hilbert_fc may be useful when the need to do hilbert trtansform 
occur early
in the chain, but in the method I implemented, it occurs later.

Is there a way, one can reliably do a "delay"? As I understand from Chuck's 
email quoting
earlier emails, there is no control over the buffering. I implemented the delay 
using a
filter, and it seem to do its job. Is there a better way to implement similar 
which occur frequently in communication systems?

    Ramakrishnan                   http://www.hackGNU.org/
    Use Free Software -- Help stamp out Software Hoarding!

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