[Discuss-gnuradio] Received Signal Power question

2014-11-24 Thread Leo Yang
I found one modified example from usrp_spectrum_sense.py which mentioned the power and noise calculation, could u plz help me figure out how it works? for i_bin in range(bin_start, bin_stop): center_freq = m.center_freq freq = bin_freq(i_bin, center_freq)

Re: [Discuss-gnuradio] Received Signal Power question

2014-11-24 Thread madengr
I assume m.data is a list of FFT magnitude-squared data; it can't be complex otherwise math.log10() won't work. It must be magnitude-squared since it is using 10*math.log10(), otherwise it needs to be 20*math.log10(). It finds the minimum out of all the bins and calls that the noise floor. For