|Subject:||Re: [Discuss-gnuradio] A medley of questions|
|Date:||Wed, 14 Mar 2007 22:24:10 -0400|
On Wed, Mar 14, 2007 at 09:47:20PM -0400, Steven Clark wrote:
> Plots of USRP decimation woes:
> input is GMSK waveform @ ~30ksym/sec, BT = 0.35, no noise added
> using decimation rate of 16:
> top plot is complex baseband, bottom plot is amplitude of top plot
> some amplitude variations noticeable, but fairly minor.
> using decimation rate of 256:
> heavy amplitude variations.
> zoomed in version of previous plots:
> Still confused as to what is going on here...
Steve, what's the real amplitude of the received baseband signal?
I suspect that you are normalizing to 1. Can you regenerate the plots
without normalizing so that we've got an idea of the values coming
across the USB.
|[Prev in Thread]||Current Thread||[Next in Thread]|