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Re: [Discuss-gnuradio] RSSI (was: Re: Math library)
From: |
Marcus Müller |
Subject: |
Re: [Discuss-gnuradio] RSSI (was: Re: Math library) |
Date: |
Wed, 19 Mar 2014 12:20:35 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.3.0 |
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Hi Owenzhang,
welcome to the mailing list!
GRC is a tool to construct flow graphs of GNU Radio blocks; there is
no "math library" in GRC, but there are blocks that perform
mathematical operations. Since you are probably looking for
sqrt(|x|²), try using the "Complex to Mag" Block.
As a side node, since this topic appears about every two months on
this mailing list: RSSI doesn't "specify" anything particular. You
will have to have a model for your signal to explain what a received
signal strength is -- this is something totally different for
different transmission methods. Therefore, there can never be a single
system to extract RSSI!
Greetings,
Marcus
On 19.03.2014 10:14, ?? wrote:
>
> Hi, This is the first time I send email to GNURadio Mailing List.
> Very glad to exchange ideas to all members.
>
> Recently, I want to extract RSSI from USRP N210. Is there any
> system to extract RSSI,or I have to build system by myself?
>
> In GRC, is there any library that has math module to calculate
> square and square root?
>
>
> best, wishes
>
> owenzhang
>
>
>
>
>
>
>
>
> _______________________________________________ Discuss-gnuradio
> mailing list address@hidden
> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>
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