Tuesday, January 18, 2011

GNU Radio PSD averaging

In search of a working energy detector, I have modified gr_bin_statistics_f to calculate a time-average of PSD frames for a given dwell delay. The intent of this is to get a cleaner signal for which we can later generate our test statistics.

Below is the 893Mhz band with the default behavior (per-bin maxima):


And here is the same band with my time-averaged PSDs (dwell = 781):

Now I need to produce a vector of test statistics to calculate our experimental probability of detection/false alarm.

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