On 03/02/2016 09:02 AM, Bruce E. Kahn wrote:
Hi GRC companions
Has anyone used GRC to acquire a large range RF spectral survey?
Basically, step from range to range, and save the output in a (text)
file. I would like to be able to average each frequency/range for some
(variable) period of time, or do peak hold, much like some of the nice
FFT sinks do. I have been doing this in Python with a modification of
osmocom_spectrum_sense, but I would rather use GRC since it is more
intuitive. I just need a starting point, and particularly how to save
to file, and time average. This seems like it would be pretty
straightforward, but I haven't seen it done anywhere (with GRC).
A little background. I am working on a research project on ambient RF
energy harvesting (using printed metamaterial antennas). I recently
got a HackRF One to help understand the ambient RF energy present and
correlate it with energy harvesting performance.
Thanks in advance!
There have been various of these over the years. Most recently, I put
together a scanner type application for scanning filters. This
might be a good starting point:
http://www.sbrac.org/files/filter_scan.grc
http://www.sbrac.org/files/scanning.py
This takes ruthless advantage of the newest "Python Module" block in
GRC, which is a more-convenient way to integrate "helper"
python code into .grc flowgraphs.
Cheers
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