From: Amara Graps (amara@amara.com)
Date: Mon Sep 02 2002 - 05:31:38 MDT
Colin Hales:
>I spent a couple of years (straight out of Uni, 1979) working in
>England analysing the garbage collected by an airborne sea-search
>radar.[...]
>The data is called called clutter. Wicked stuff, clutter. Looks
>white at first glance, but --nope-- all sorts of deterministic
>phenomena are buried in it. I wrote a whole bunch of software to do
>autocorrelation functions and power spectral densities. [...]
>Thing is, you've really got to watch out for behaviour on different
>timescales. Deterministic behaviour can poke its wicked little head
>into things in all sorts of ways (which is how you see a
>periscope/snort sticking out of the waves in a force 8 gale from 50
>miles).
Did you catch any whales?
Here's a singing blue whale in wavelet space:
http://www.amara.com/blueA1_mid.jpg
Is that cool or what ?
(The person who gave me this says it's a blue whale "A" call,
transformed with a Biorthogonal 3.1 wavelet. )
-- ******************************************************************** Amara Graps, PhD email: amara@amara.com Computational Physics vita: ftp://ftp.amara.com/pub/resume.txt Multiplex Answers URL: http://www.amara.com/ ******************************************************************** "We don't see things as they are, we see them as we are." --Anais Nin
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