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From: honig@ics.UCI.EDU (David A. Honig)
Newsgroups: sci.military
Subject: Measuring range with passive sonar
Message-ID: <27129@amdcad.AMD.COM>
Date: 6 Sep 89 10:50:55 GMT
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Organization: University of California, Irvine - Dept of ICS
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From: "David A. Honig" <honig@ics.UCI.EDU>
In article <27084@amdcad.AMD.COM> broman@trout.nosc.mil (Vincent Broman) writes:
>By comparing the signals arriving at each individual hydrophone, one
>can estimate useful parameters, e.g. the azimuthal angle of arrival of
>the sound rays relative to the sensor.  "SOund NAvigation and Ranging"
>is a slight misnomer for such a sensor, because the range to the
>target cannot usually be estimated by means of one passive detection,

Question: Can the dispersion (frequency-dependant propogation velocity) of
sound through water be used to measure range with a single measurement?
Seems that you could, if the target emitted a broadband signal and you
knew the dispersion characteristics of water.

--
David A Honig