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Re: [Discuss-gnuradio] gr.firdes_hilbert () usage

From: Matt Ettus
Subject: Re: [Discuss-gnuradio] gr.firdes_hilbert () usage
Date: Wed, 24 Nov 2004 14:53:14 -0800
User-agent: Internet Messaging Program (IMP) 4.0-cvs

Quoting cswiger <address@hidden>:

> On Wed, 24 Nov 2004, Dan Gisselquist wrote:
> > Chuck,
> >
> > I think you are comparing apples to oranges.  Using the block diagram
> > you've presented below, a more appropriate way to get complex sampling
> > would be ...
> >
> Hi Dan - Well untill I get something working any and all input is
> welcome ;)   I'm working from figure 13 here:
> http://members.tripod.com/michaelgellis/mixerscom.html
> Phasing method of image rejection.

Basically, the hilbert transform must be on the real side of the mixers.  The
input to both the delay and the hilbert filter must be the same for it to work.


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