discuss-gnuradio
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Discuss-gnuradio] AWGN using E310


From: Marcus Müller
Subject: Re: [Discuss-gnuradio] AWGN using E310
Date: Thu, 5 Jan 2017 20:22:25 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.2.0

Hi John,

sure! Just use the noise source with a noise variance (amplitude) low
enough to allow for the resulting amplitude to very rarely exceed 1.0
(because that would lead to artifacts/non-gaussian distribution) (or,
better yet, use the fast noise source, which preallocates a definable
amount of noise that it then plays over and over again), and connect it
to the USRP sink.

Notice that the E310 isn't sold calibrated – you'll need to calibrate
the noise power generated using e.g. a calibrated spectrum analyzer
yourself.

Best regards,

Marcus


On 01/05/2017 08:18 PM, John B. Wood wrote:
> Hello, all.  This may be a "RTFM" question but with the stock tools in
> GRC (or a non-GRC generated .py file) can a gaussian white noise
> generator be readily implemented on an Ettus E310 to provide a
> broadband RF noise output (some level in dBW/Hz) over a specified
> bandwidth (within the capabilities of the E310) that can be used to
> evaluate noise performance of radio receivers?  If not feasible then I
> will probably have to purchase a noise generator. Thanks for your time
> and comment.  Sincerely,
>
>
>                                             J. Wood
>                                             U.S. Naval Research
> Laboratory
>
> _______________________________________________
> Discuss-gnuradio mailing list
> address@hidden
> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio




reply via email to

[Prev in Thread] Current Thread [Next in Thread]