Re: [Discuss-gnuradio] USRP Status.

[n4hy]

The cheapest dirtiest thing to do is to normalize the baseline (up to some
extent or some frequency bounds) so you get a straight threshold detection
problem. The correct thing to do is to use different filters but that 
involves
changing FPGA code while trying to bring out four or five hardware modules!

Bob



Lamar Owen wrote:

> Now that I'm getting my mind wrapped around some of the concepts in DSP, and 
> having read the AD9862 docs and such, I have a status request of Matt:
>
> How's the half-band filter situation going?  For radio astronomy 
> spectrography, the curved baseline with 1dB or less per division really makes 
> it difficult to do the work.  What can be done to help in this regard?  When 
> the signal, fully integrated, is a half dB or so out of the noise that curve 
> gets mighty annoying.  Does current USRP hardware CVS have anything new?
>