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Re: [Discuss-gnuradio] how to measure ber and snr

From: Martin Braun
Subject: Re: [Discuss-gnuradio] how to measure ber and snr
Date: Fri, 11 Jul 2014 10:44:12 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0

On 07/11/2014 09:31 AM, Marcus Müller wrote:
> Hi BZS,
> haven't seen you in a long time! Welcome back :)
> If you use the search tool in gnuradio-companion, you will find the BER
> block, which has two inputs and will output an BER measurement.
> SNR is highly dependent on what you consider to be signal and what you
> consider to be noise, so for most cases you will have to make your own
> Signal Power measurement and divide that by a noise power estimate.

That said, we have SNR estimators for certain modulations. Check the
manual, and make sure you have a basic grasp of the underlying theory
before you use them.


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