[OLPC Networking] [Server-devel] RSSI value questions

[V. Michael Bove Jr.]

Yes, the Master's thesis that Wad referenced discusses the error  
issue, and how to make best use of pairwise measurements when you  
have more than three machines...

Incidentally, there is a patent on doing the same thing with RF that  
Ben Dalton and I did with audio.

--M.

On Apr 5, 2008, at 1:49 AM, david at lang.hm wrote:

> you could take three laptops and have them do acoustic measures  
> from each other and then work out from that.
>
> I don't think it's worth trying to deal with system lieing about  
> their location (at least not for the first cut)
>
> one thing to keep in mind is that each measurement has an error  
> band accociated with it, so as you get secondary positions and work  
> out from there the locations become less precise.
>
> one question about the XO hardware. are the two antennas directly  
> connected inside the machine, or is there some way (possibly  
> requiring a firmware modification) to find the difference between a  
> given signal between the two antennas?
>
> David Lang