Posted by
Friam mailing list on
Feb 07, 2003; 7:53pm
URL: http://friam.383.s1.nabble.com/swarm-based-differential-GPS-tp518115p518119.html
Belinda:
I'm curious about how often you're "away from earth" ?
Richard
-----Original Message-----
From:
[hidden email] [mailto:
[hidden email]]On Behalf
Of Belinda Wong-Swanson
Sent: Friday, February 07, 2003 8:14 AM
To:
[hidden email]
Subject: RE: [Friam] swarm-based differential GPS?
Carl,
Traditionally, when you are way away from earth, star tracker is used. This
is typically a single unit, at most two, for redundancy. The higher the
resolution, the more expensive (usually one of the more expensive items on a
spacecraft).
Your idea about a differential system, each having lower resolution but with
several of them working together, may be worth looking into if this is much
less expensive - an analogy is the multiple-mirror telescope.
I would be interested to learn more about your idea.
Belinda
-----Original Message-----
From:
[hidden email] [mailto:
[hidden email]]On Behalf
Of Carl Tollander
Sent: Thursday, February 06, 2003 9:57 PM
To:
[hidden email]
Subject: [Friam] swarm-based differential GPS?
Does anyone know of any P2P folk that have worked toward a pure
peer differential GPS? There's a bunch of stuff on openp2p.com,
but it's a lot to wade through. Thought I would check with
the local folks before proceeding.
The idea would be for the peers to figure out where they
were relative to other relatively nearby peers with high
accuracy. Absolute positioning would not be a primary
requirement. Assume each peer would have a very good clock
and some sort of radio peer routing. I can find references
to P2P using GPS, but not forming the GPS itself.
The application I'm thinking of would be out of town.
Way out of town.
Carl
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