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List: gnuradio-discuss
Subject: Re: [Discuss-gnuradio] question about the sampling rate
From: osama mohamed <osama_valencia_88 () hotmail ! com>
Date: 2012-02-27 11:38:44
Message-ID: DUB104-W7515F2B9A3B85C6CB40CEA5690 () phx ! gbl
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hi all,
the usrp final samling rate coming out from the codec is 128 Msps so i think that you \
should follow this equation : sample rate* interpolation =128 msps you can set the \
sampling rate =1 msps and the interpolation rate =128 try it and inform me of the \
result yours,
osama riad
> Date: Sun, 26 Feb 2012 13:09:28 -0500
> From: mleech@ripnet.com
> To: ahmedalsawi2012@gmail.com; Discuss-gnuradio@gnu.org
> Subject: Re: [Discuss-gnuradio] question about the sampling rate
>
> On 02/26/2012 12:11 PM, Ahmed Alsawi wrote:
> > Hi all,
> > I am new to gnuradio and i am trying to make simple transmission and
> > reception.
> > I want to understand the sampling rate of the uhd sink and source and
> > how to choose it
> > and the sampling rate of the blocks in the flow graph.
> >
> > when running on sine of 100 kHZ and sampling rate of 0.5 MHz and same
> > sampling rate for uhd
> > I get UUUUUUUUUUUUUUUUUUUUUUUUUU ,it means under sampling,Right?
> > How to avoid it ???
> > Thanks
> >
> Sample rate is really only relevant at the edges, and when calling the
> filter synthesis modules, most interior blocks have no concept of
> sample rate.
>
> 'U' means under-run the producer (in this case, your program) can't keep
> up with the consumer--the UHD device.
>
>
> --
> Marcus Leech
> Principal Investigator
> Shirleys Bay Radio Astronomy Consortium
> http://www.sbrac.org
>
>
>
> _______________________________________________
> Discuss-gnuradio mailing list
> Discuss-gnuradio@gnu.org
> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
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hi all,<br><br>the usrp final samling rate coming out from the codec is 128 Msps so i \
think that you should follow this equation : sample rate* interpolation =128 msps you \
can set the sampling rate =1 msps and the interpolation rate =128 <br>try it and \
inform me of the result<br>yours,<br>osama riad<br><br><div><div \
id="SkyDrivePlaceholder"></div>> Date: Sun, 26 Feb 2012 13:09:28 -0500<br>> \
From: mleech@ripnet.com<br>> To: ahmedalsawi2012@gmail.com; \
Discuss-gnuradio@gnu.org<br>> Subject: Re: [Discuss-gnuradio] question about the \
sampling rate<br>> <br>> On 02/26/2012 12:11 PM, Ahmed Alsawi wrote:<br>> \
> Hi all,<br>> > I am new to gnuradio and i am trying to make simple \
transmission and <br>> > reception.<br>> > I want to understand the \
sampling rate of the uhd sink and source and <br>> > how to choose it<br>> \
> and the sampling rate of the blocks in the flow graph.<br>> ><br>> > \
when running on sine of 100 kHZ and sampling rate of 0.5 MHz and same <br>> > \
sampling rate for uhd<br>> > I get UUUUUUUUUUUUUUUUUUUUUUUUUU ,it means under \
sampling,Right?<br>> > How to avoid it ???<br>> > Thanks<br>> \
><br>> Sample rate is really only relevant at the edges, and when calling the \
<br>> filter synthesis modules, most interior blocks have no concept of<br>> \
sample rate.<br>> <br>> 'U' means under-run the producer (in this case, your \
program) can't keep <br>> up with the consumer--the UHD device.<br>> <br>> \
<br>> -- <br>> Marcus Leech<br>> Principal Investigator<br>> Shirleys Bay \
Radio Astronomy Consortium<br>> http://www.sbrac.org<br>> <br>> <br>> \
<br>> _______________________________________________<br>> Discuss-gnuradio \
mailing list<br>> Discuss-gnuradio@gnu.org<br>> \
https://lists.gnu.org/mailman/listinfo/discuss-gnuradio<br></div> \
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