Re: Reflected Signal Problem

[Tim Vanderhoek <vanderh@ecf.utoronto.ca>]

On Fri, Nov 26, 1999 at 11:22:10AM -0500, Joyce Poon wrote:
>
> there... Suppose we are at the reflective surface, and our extra emitter
> (which I will now call reference emitter since that's how we'll be using
> them) emits a signal that is reflected, our beacon sensors will thus be
> picking up the enemy beacon and our reference signal.  How can we
> distinguish between the two?  How does the reference signal help?  (I'm

Presumably they are at different frequencies...  The problem, as I
understood, was a possible overlap between frequency of our beacon
ontop of the enemy and the enemy's beacon ontop of us.

We should discuss this en groupe.  I fear there is some confusion
here.  :)


> If the reference emitter/detectors are placed far enough away from the
> beacon sensors (which is why I suggested bumper level, but I guess it

"far enough" can be pretty far, though...


> feasible this is (seeing how I don't think I'll be  going around
> looking for specific light-sensitive materials & transistors to build our
> own sensors -- which is what Tim seemed to be implying).  There will be
> circuitry involved still -- I'll see what I can do with it.

I would've thought it could all be done in circuitry.  I'll try
looking around for some info sooner or later...


> Lastly, I just want to write this down in an email so we have a record of
> it.  IF we want to interfere with other people's signals, we can change
> their signal phase/frequency. (which is very difficult) hm...

We can change their signal?  How?


-- 
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