Re: [Discuss-gnuradio] SNR Peak AMplitude and Noise Floor Calculation

2014-09-27 Thread Marcus Müller
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 pie

Re: [Discuss-gnuradio] SNR Peak AMplitude and Noise Floor Calculation

2014-09-26 Thread Jeff Long
Ankit, First, calibration is outside the scope (so to speak) of GNU Radio and USRPs, so absolute measurements are going to require test equipment. But, you can determine SNR and the peak amplitude above the noise floor for some simple signals by viewing them on uhd_fft or a similar program.

[Discuss-gnuradio] SNR Peak AMplitude and Noise Floor Calculation

2014-09-26 Thread ANKIT KHUSHU
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 bas