Re: [Discuss-gnuradio] isolate channels from wideband

[West, Nathan]

Based on the plot of resulting figures the firdes designed filter has more out of band rejection. It's a trade-off between number of taps and rejection. We're good enough (computationally) at doing fir filters that 20 extra taps 25dB of attenuation is worth it.

-Nathan

On Wed, Jul 22, 2015 at 4:57 AM, Daniele Nicolodi <address@hidden> wrote:

On 21/07/15 21:39, Tom Rondeau wrote:
> Here's my presentation from last GRCon:
>
> http://gnuradio.squarespace.com/grcon14-presentations#tut-rondeau

Hello Tom,

browsing through your presentation I see that on page 58 and 59 you
recommend to use firdes filter design tool and not optfir to build re
reconstruction filter.  However, I don't quite understand why the filter
generated by one tool is better than the other is this case.

Can you please comment on it?

Thanks! Cheers,
Daniele

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