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)
#noise_floor_db = -174 + 10*math.log10(tb.channel_bandwidth)
noise_floor_db = 10*math.log10(min(m.data)/tb.usrp_rate)
power_db = 10*math.log10(m.data[i_bin]/tb.usrp_rate)
-noise_floor_db
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