Re: [Discuss-gnuradio] peak near center freq for noise signal, how to fix it

2013-04-27 Thread Alex Zhang
I remember that some DC is manually added into the frequency point which can be divided by 5Mhz or 10Mhz? Besides the DC at the your central freq, be aware of that if the lo offset setting makes your bandwidth cover these frequency point, you still can see the peaks. Hope I am not wrong, at least I

Re: [Discuss-gnuradio] Volk machine: ssse3_32 segmentation faults (was RE: How to diagnose make test failures)

2013-04-27 Thread Brian Stamper
On Fri, Apr 26, 2013 at 4:35 PM, Barry Jackson wrote: > > Brian > I think you misunderstood. > We were using boost-1.52 which is blacklisted for gnuradio, hence the need > for us to update to 1.53. > > I don't think these current test failure problems are boost related and > AFAIK there is no reas

Re: [Discuss-gnuradio] S/N ratio vs BER reference?

2013-04-27 Thread Nathan West
On Fri, Apr 26, 2013 at 3:36 PM, Gregory Warnes wrote: > Hi All, > > I'm playing around with digital modulation techniques in GnuRadio and > would like to get a sense of how successful my efforts are in terms of > BER vs. S/N ratio. > > Can someone suggest a reference that provides BER vs S/N rat

[Discuss-gnuradio] RFID at 2.4GHz simulation-Encoding, Modulation techniques (grc implementation)

2013-04-27 Thread stefosee
Hi everyone, i'm an undergraduate student of ee and currently i'm working on my thesis which is related to an RFID standard simulation in GNURadio. I don't have a USRP device yet, so i'm just working on the grc tool with default signal sources. As i figured out, there are already some pre-install