Kalman filter code?
Matthew R Wette
Matthew.R.Wette at jpl.nasa.gov
Thu Aug 3 16:03:36 EDT 2000
Robin Becker <robin at jessikat.fsnet.co.uk> writes:
> In article <8mbna2$fav$1 at news.rz.uni-karlsruhe.de>, Bjoern Giesler
> <un4e at rzstud1.rz.uni-karlsruhe.de> writes
> >Hi,
> >
> >does anyone have a Python implementation of a Kalman filter? Otherwise, I'm
> >going to write one... but I'd rather spare myself the work (and reading of
> >papers) if there's already something out there.
> >
> >Regards,
> > --Björn
> I did a lot of stuff on Kalman filters many years ago in Fortran. I
> suppose you are talking either constant-system discrete/continuous time
> filter discrete time time varying is harder and I never did the full
> blown continuous time varying case.
>
> You will certainly be needing NumPy.
> --
> Robin Becker
Check the following reference. Conventional Kalman filtering
algorithms are numerically unstable. The algorithms in this
paper come out to <=5 lines of MATLAB code.
M.Verhaegen, P. Van Dooren, "Numerical Aspects of Different Kalman
Filter Implementations," IEEE TAC AC-31(1986)10, p. 907-917.
Matt
--
Matthew.R.Wette at jpl.nasa.gov -- I speak for myself, not for JPL.
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