The power of a signal over its bandwidth is computed as: 

AVG(I*I+Q*Q) 

Average/Decimate/SQRT to taste. 

On 2014-08-14 14:44, Md. Anjum wrote: 

> Hello, 
> 
> I have transmitted and received signal using USRP board. I can see the 
> received power spectral density by using WX GUI FFT Sink. How can I find the 
> received power of a signal? I mean I don't require power spectral density but 
> I need the received signal power. 
> 
> I highly appreciate your reply. 
> 
> Regards 
> Nashid Anjum 
> 
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