pyarts3.arts.rtepack.logK
- rtepack.logK(m: pyarts3.arts.Muelmat) pyarts3.arts.Propmat
Returns the logarithm of the Mueller matrix as a Propagation matrix
This only works for a Mueller matrix that has been generated from a Propagation matrix using
\[\mathrm{M} = e^{-\mathrm{K} r},\]where \(\mathrm{M}\) is the Mueller matrix, \(\mathrm{K}\) is the Propagation matrix, and \(r\) is the distance.
The return value of this method is then not the original Propagation matrix, but rather the logarithm of the Mueller matrix as if it were generated from a Propagation matrix using the same equation. That is
\[-\mathrm{K}r = \log(\mathrm{M})\]