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Re: [Discuss-gnuradio] How to calculate SNR?
From: |
Marcus Müller |
Subject: |
Re: [Discuss-gnuradio] How to calculate SNR? |
Date: |
Wed, 26 Mar 2014 16:31:09 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.3.0 |
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Ah, the picture of your flowgraph took some time to load, so I thought
it was broken.
First of all: to get truly comparable numbers, you should set the IIR
alpha to the same value for the probe and the RMS blocks.
Then: What you're doing with the RMS blocks is something different
than what the MPSK SNR estimators do; please refer to
http://gnuradio.org/doc/doxygen/classgr_1_1digital_1_1mpsk__snr__est.html
and the papers linked on the respective implementations for detail.
Greetings,
Marcus
On 26.03.2014 16:16, Marcus Müller wrote:
> Hi Azza,
>
> how do you know RMS(noise)?
>
> Greetings, Marcus
>
> On 26.03.2014 16:14, Azza Ben Mosbah wrote:
>> I calculate the SNR using the formula
>> SNR=20*log10[RMS(signal)/RMS(noise)]. You find attached my flow
>> graph.
>> <http://gnuradio.4.n7.nabble.com/file/n47229/flowgraph.png>
>
>
>> Azza
>
>
>
>> -- View this message in context:
>> http://gnuradio.4.n7.nabble.com/How-to-calculate-SNR-tp47193p47229.html
>
>>
>
> Sent from the GnuRadio mailing list archive at Nabble.com.
>
>> _______________________________________________ Discuss-gnuradio
>> mailing list address@hidden
>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>
>
> _______________________________________________ Discuss-gnuradio
> mailing list address@hidden
> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>
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- [Discuss-gnuradio] How to calculate SNR?, Azza Ben Mosbah, 2014/03/25
- Re: [Discuss-gnuradio] How to calculate SNR?, Martin Braun, 2014/03/25
- Re: [Discuss-gnuradio] How to calculate SNR?, zielalaoui, 2014/03/25
- Re: [Discuss-gnuradio] How to calculate SNR?, Azza Ben Mosbah, 2014/03/26
- Re: [Discuss-gnuradio] How to calculate SNR?, Marcus Müller, 2014/03/26
- Re: [Discuss-gnuradio] How to calculate SNR?, Azza Ben Mosbah, 2014/03/26
- Re: [Discuss-gnuradio] How to calculate SNR?,
Marcus Müller <=
- Re: [Discuss-gnuradio] How to calculate SNR?, Azza Ben Mosbah, 2014/03/26
- Re: [Discuss-gnuradio] How to calculate SNR?, Marcus Müller, 2014/03/26
- Re: [Discuss-gnuradio] How to calculate SNR?, Azza Ben Mosbah, 2014/03/26
- Re: [Discuss-gnuradio] How to calculate SNR?, Azza Ben Mosbah, 2014/03/31
- Re: [Discuss-gnuradio] How to calculate SNR?, Tom Rondeau, 2014/03/31
- Re: [Discuss-gnuradio] How to calculate SNR?, Azza, 2014/03/31
- Re: [Discuss-gnuradio] How to calculate SNR?, Tom Rondeau, 2014/03/26