Dear all,

I am working with USRP B200 for spectrum sensing, I want to scan the band
from 2.4 to 2.5 Ghz, I use fft size 256, and sample_rate 4M, and tune
_delay 0,001s. I am not sure if the parameters are correctely chosen
because when I try to scan another band without wireless activities, I
still receive hight power levels. Can anyone has any idea about where I am
mistaken ?

Also, in the formula used to calculate the PSD :

 Power_dB = 10*math.log10(m.data[i_bin]/tb.usrp_rate);

Normally it is the magnitude squared averaged , I want to know why it is
averaged by the usrp_rate ?


Thank you in advance !

Soumaya

-- 

*EL BARRAK Soumaya*

*Telecommunication & Networking Engineer / Phd Student*

*Innovative Technologies Laboratory*

*National School of Applied Sciences of Tangier - (ENSA Tanger)*

*Abdelmalek Essaâdi University -  Morocco*

*Tel : (+212) 6 65 9 625 40/ (+ 39) 327 198 5064 <+39%20327%20198%205064>*
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