GPS very expensive is not accurate enough
That seems to leave RF as my only option.
I'd like to plot the path of several animals in an outdoor fenced area, ideally with accuracy of 12 inches or less.
If you could get them to bark on cue (perhaps with addressable collars) then you could triangulate the position of the sound. Of course if they all start barking in a pack, then you're back to zip.
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