Hi Ankit, >I calculate the SNR, Peak Amplitude of the signal and the noise floor. This first questions seem to be rather of a DSP nature than specific to GNU Radio -- for example, SNR only makes sense when you define what your signal is. There is not "physical" quantity that describes SNR in a piece of spectrum, it all depends on what you want to receive. You'll need to define a signal model, and mathematically quantify what SNR is, and then build a flowgraph that calculates it.
> using FFT block in companion how do I extract the frequency samples and Power level for every sample. The output of the FFT block is the FFT of the input vectors; I think this is what you refer to with frequency samples. Power level, again, is depending on how you define signal power, but it's common in signal to use the $L^2$ norm of a signal, and thus, the square root of the sum of squares over a period of time. Greetings, Marcus On 26.09.2014 22:19, ANKIT KHUSHU wrote: > My question is if we have an incoming signal coming from a usrp, How do >> I calculate the SNR, Peak Amplitude of the signal and the noise floor. >> >> And using FFT block in companion how do I extract the frequency samples >> and Power level for every sample. >> >> I am very new to gnuradio and very basic software skills. > > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
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