Re: Sensors

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Some very nice ideas here, just one bit where I can't help but
disagree/cpmment.

On Tue, 29 May 2001, Ryan Gill wrote:

> If we use Radar and Sonar as a reference here for
> principles. Passive Sonar will give you some general
> information about the vessel and allow you to get some
> pretty good ideas of what it could be. It'd be hard to get a
> specific ID on a specific vessels' hull number with passive
> sonar. 

Actually, as far as id-ing a target is concerned, almost the reverse is
true for 'passive radar' (ESM). A good ESM suite, supported by a
well-filled ESM database, will give you a very solid ID of a target
based
on the target's emissions. So perhaps sonar isn't as good an example? In
any case, I wouldn't be surprised if modern day passive sonar has much
the
same capabilities?

Cheers,

   Derk
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