Fft_bin resolution in usr_spectrum_sense.py

GNU Radio
1

Hello,

I am trying to detect energy on 10kHz size channel or less resolution.
With the fft_size 1024, 8MHz /1024 = 7.815 kHz is FFT frequency
resolution. I have a question in here. Of the returned value, (i.e. the
center frequency = 2.5G) m.data, m.data[1] shows the energy of 2.5G to
2.5007G, m.data[2] for the energy 2.5007G to 2.5014G … Etc. Is it
connect understanding?

Thanks,

Kyungtae

2

Hi,Kim,
i have the same question,have you got to know what are stored in
m.data[]

Kyungtae Kim wrote in post #881823:

Hello,

I am trying to detect energy on 10kHz size channel or less resolution.
With the fft_size 1024, 8MHz /1024 = 7.815 kHz is FFT frequency
resolution. I have a question in here. Of the returned value, (i.e. the
center frequency = 2.5G) m.data, m.data[1] shows the energy of 2.5G to
2.5007G, m.data[2] for the energy 2.5007G to 2.5014G … Etc. Is it
connect understanding?