Re: [Discuss-gnuradio] FFT Baselines curved?

[n4hy]

Cascaded Integrator Comb filters are pretty simple filters that are very 
fast to compute
but produce those slow roll offs. There are more complex things that 
could be done and
hopefully now that the USRP is really flowing out the door, 
daughtercards and all, and
as we come up to speed, we can work on these subtleties in the core code.

Bob


Lamar Owen wrote:

> Anyone have any idea why the noise floor baselines would be curved?  Attached 
> is a png of an example.
>
> I would have expected it to be flatter.
>