FRiM (FRactal Iterative Method) is an algorithm to generate/recover random fields with stationnary covariance like turbulent wavefronts. Below is an example of turbulent wavefront generated with FRiM:
This repository provides the code corresponding to the method described in Thiébaut & Tallon, "Fast minimum variance wavefront reconstruction for extremely large telescopes", J. Opt. Soc. Am. A, vol. 27, pp. 1046-1059 (2010).
This repository is organized as follows:
ccontains the C sources;matlab-octavecontains code to generate turbulent wavefronts with MATLAB or Octave;yorickcontains the source of the FRiM plug-in for Yorick.
To build and install the Yorick plug-in:
mkdir -p $BUILD
cd $BUILD
$SRCDIR/configure
make clean
make
make installwhere $BUILD is the directory where to build the plug-in and
$SRCDIR/configure is the path to the configuration script in the
yorick directory. The build directory $BUILD should not
contain precious files you want to keep, the $BUILD and $SRCDIR can however
be the same directory. The mkdir command above is only needed if directory
$BUILD does not exist. Call:
$SRCDIR/configure --helpfor a short help about possible configuration options.