diff --git a/doc/BBS/BBS-SDD.tex b/doc/BBS/BBS-SDD.tex index ad66468176cef09f2d6fb8717be29a0760535b6d..81fd61103a8d4462ad7d494e958220db10ff87dd 100644 --- a/doc/BBS/BBS-SDD.tex +++ b/doc/BBS/BBS-SDD.tex @@ -913,7 +913,10 @@ visibilities and the predicted visibilities (based on the model). \item \shift\\ Phase shift the observed visibilities to a different phase center. \item \flag\\ -Flag visibilities that have been contaminated by, e.g., radio frequency interference. +Flag visibilities that have been contaminated by, e.g., radio frequency +interference. +\item \refit\\ +Refit funklet coefficients, e.g. in a multi-resolution approach. \end{itemize} Some of the operations listed above can be subdivided from the kernel's point of @@ -1002,6 +1005,22 @@ achieves two goals: \item Specification of default values \end{itemize} +Each parameter is assigned a unique name, which can be made up of several parts +separated by colons. Grouping can be achieved with \textsc{unix}-like wildcards +(*, \{\}), see Table \ref{tab:naming_scheme}. If the kernel cannot find an +exact match when searching for a certain parameter, it will try to find a +default value. Default values are specified according to the same naming scheme +as parameters. However, if no default value can be found that matches the name +of a parameter exactly, the kernel will strip off the last part of the name and +retry. This process continues until either a match is found or the name becomes +empty. Thus, one can specify, for example, a default flux for every source by +specifying \texttt{StokesI}. If the kernel needs the value of +\texttt{StokesI:3C343} but that parameter does not exist as a regular parameter, +it will try to find a default value called \texttt{StokesI:3C343}. If that +default value also does not exist, it will strip off the last part of the name +and search for a default value called \texttt{StokesI}, which does exist in our +example. + \begin{table}[htb!] \centering \begin{tabular}{lp{0.60\textwidth}} @@ -1027,22 +1046,6 @@ identify a group of related parameters.} \label{tab:naming_scheme} \end{table} -Each parameter is assigned a unique name, which can be made up of several parts -separated by colons. Grouping can be achieved with \textsc{unix}-like wildcards -(*, \{\}), see Table \ref{tab:naming_scheme}. If the kernel cannot find an -exact match when searching for a certain parameter, it will try to find a -default value. Default values are specified according to the same naming scheme -as parameters. However, if no default value can be found that matches the name -of a parameter exactly, the kernel will strip off the last part of the name and -retry. This process continues until either a match is found or the name becomes -empty. Thus, one can specify, for example, a default flux for every source by -specifying \texttt{StokesI}. If the kernel needs the value of -\texttt{StokesI:3C343} but that parameter does not exist as a regular parameter, -it will try to find a default value called \texttt{StokesI:3C343}. If that -default value also does not exist, it will strip off the last part of the name -and search for a default value called \texttt{StokesI}, which does exist in our -example. - \paragraph{Reusing parameter values} It often makes sense to reuse the parameter values determined during calibration of an observation $A$ for calibration of an observation $B$. For