home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: sci.fractals
- Path: sparky!uunet!gatech!rpi!sassoj
- From: sassoj@rs6416.ecs.rpi.edu (John J. Sasso Jr.)
- Subject: Interpolation & Chaotic TS
- Message-ID: <!7h13=#@rpi.edu>
- Nntp-Posting-Host: rs6416.ecs.rpi.edu
- Organization: Rensselaer Polytechnic Institute, Troy NY
- Date: Thu, 5 Nov 1992 14:49:30 GMT
- Lines: 22
-
-
- Given a chaotic time series with a fractal dimension, does anyone know of
- any theory or whatever which relates splines to the interpolation of the
- chaotic time series corresponding to the given fractal dimension? For
- example, if I have a signal that can be best interpolated by cubic splines,
- then that is what I would use (using a linear or quadratic spline would not
- do so well). Now, given a chaotic time series (perhaps one similar to that
- of Brownian motion), it would seem that you cannot interpolate it with any
- spline of some order, or you need a very high order spline in order to
- interpolate it accurately. This may sound crazy, but would it be that you
- would need a spline of some fractional order (in relation to the fractal
- dimension of the time series) in order to do an accurate interpolation? Or,
- would the spline needed have to have fractal properties itself (a fractal
- interpolating a fractal, so to speak. I got this idea from Barnsley's IFS
- where a base fractal is used to interpolate a fractal image).
-
- If anyone can give me any guidance at all on this problem, I would greatly
- appreciate it. Also, any reference to literature that may help me would
- be nice.
-
- John
-
-