Gerry Smith <LIUKB@KIRK.NORTHERNC.ON.CA> wrote:

>How about ECG signals?  I have a book that shows each characteristic of
>different diseases.  Would the Fourier Transform code work in this way?
>Also if I were to use a PC to analyze the data is there any information
>on recognizing waveforms?

Gerry:

There are tens, if not hundreds, of millions of dollars waiting for the first
person to create an accurate EKG-reading machine; the fact that such a
machine doesn't exist should give you a clue as to the difficulty involved.

To do it, you'll need much more than just a Fourier transform and a PIC.  You
may want to read a few books on digital signal processing and (possibly)
fuzzy logic;  for starters, I'd suggest "Theory and Application of Digital
Signal Processing", by Rabiner and Gold (ISBN 0-13-914101-4), "Multirate
Digital Signal Processing", by Crochiere and Rabiner (ISBN 0-13-605162-6),
and "Signal Processing Algorithms", by Stearns and David (ISBN
0-13-809435-7).  That last book even comes with a disk; the programs are
written in FORTRAN, though.

Be forewarned... You'll need a strong mathematics background to get through
any of these books.

-Andy

--
Andrew Warren - fastfwd@ix.netcom.com
Fast Forward Engineering, Vista, California