[19288] in s-news-athena
[S] Complex demodulation
daemon@ATHENA.MIT.EDU (Philip Trathan)
Wed Sep 22 11:41:25 1999
Message-Id: <199909221530.QAA12615@bsumlsa.bas>
Date: Wed, 22 Sep 1999 16:30:46 +0100 (BST)
From: Philip Trathan <pnt@bsfiles.nerc-bas.ac.uk>
Reply-To: Philip Trathan <pnt@bsfiles.nerc-bas.ac.uk>
To: s-news@wubios.wustl.edu
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One of the methods described in the Splus 2000 Guide to Statistics (Vol 2) is
complex demodulation. If I have correctly understood the description of the
technique (p.200), it appears suitable for examining levels of temporal
variability in a given signal at a particular harmonic. Unfortunately, the
background info in the manual is a little thin for those individuals not already
familiar with the method, particularly if they are not statisticians. Therefore,
if anyone can point me towards a useful primer as well as suggest how one should
parameterise the pass and stop frequencies, I'd be most grateful.
Many thanks.
Phil Trathan.
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