Hello, I am receiving RSSI with USRP B210 and I have some doubt regarding that : Also, I am attaching grc file and python file for reference.
1- I am saving my received data to a file_sink and trying to compute power(RSSI) from that by using python code, kindly see attached python file. At the output, I am getting -20dB if there is no signal source and 20dB when there is a signal source (which is not possible). 2- Change in gain in USRP_SOURCE block leads to change in the output value so I am using maximum as 120 dB. Is that possible or any gain is fine? Is there any error in python code or in grc file? Any help is really appreciated. Thanks, Prabhat
recieving.grc
Description: application/gnuradio-grc
import scipy
import numpy
import numpy as np
import math
from sys import argv
format=np.float32
d=np.fromfile(open("/home/prabhat/nnn"), dtype=format)
print(d)
x=np.mean(d)
z=10*np.log10(x)
print(z)
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