From: paul@poboy.b17c.ingr.com (Paul Robichaux)
Date: Tue, 31 May 94 08:18:09 PDT
To: cardtris@umich.edu
Subject: Re: "lifeguard(?)": bullet tracking system???
In-Reply-To: <Pine.3.89.9405300746.A7233-0100000@pliny.ccs.itd.umich.edu>
Message-ID: <199405311518.AA17322@poboy.b17c.ingr.com>
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> [With apologies -- no, it's not cryptography.]

> Considering the wide variety of gun noises and urban noise
> artifacts, a lot of false alarms would be expected.  On the other
> hand some of them might be worth responding to from the police
> perspective.  It might be preferable to respond to firecrackers
> early in the evening and discourage accidental or deliberate
> arson later.

The original report on CNN said that LLNL claimed their system didn't use
sound for tracking. They wouldn't discuss further details, since the system
hasn't been patented yet.

Sci.military readers might remember that a debate about these types of
acoustic locating systems took place there a couple of months ago.
Apparently the UK has a vehicle-mounted system that they use to sniff
out snipers in Northern Ireland.

- -Paul

- -- 
Paul Robichaux, KD4JZG      | Out the 10Base-T port, through the router, 
perobich@ingr.com           | over the leased line, off the bridge, past
Intergraph Federal Systems  | the firewall... nothing but net.
	       Of course I don't speak for Intergraph.

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