Content-type: text/html Manpage of mbanal

mbanal

Section: User Commands (1)
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NAME

mbanal - Analyse multibeam data  

PERSON RESPONSIBLE

rjs  

CATEGORIES

uv-analysis  

DESCRIPTION

MBANAL is a task to manipulate sets of visibility spectra. One or two spectra sets are read from a visibility dataset, and then these spectra sets can be manipulated interactively with a set of simple commands. These commands manipulate "spectra sets" or individual baselines. A spectra set is the collection of baselines that are in some way similar. For example, the set of baselines of a particular source observed during some particular time interval would be an example of a spectra set. new spectra sets (or overwrite old ones). Alternately a spectra set could be an observation of a reference blank piece of sky.

Commands include:

  Command    Args
  -------    ----
  load       var  select
  save       var  dataset
  add        out  in1 in2
  subtract   out  in1 in2
  multliply  out  in1 in2
  divide     out  in1 in2
  conjugate  out  [in]
  sqrt       out  [in]
  plot       in   [amp|phase|real|imag] [PGPLOT device]
  exit

Commands can take either spectra sets of the spectra of an individual baseline. An individual baseline is given in the form:

  name[m,n]
where 'name' is the name of the spectra set and m and n are indices of the elements involved. For example
  ref[1,13]
is the spectra of beams 1 correlated with 13 of the

For example

  mbanal vis=multi.uv ref=time(10:00,10:10)
will start mbanal, and define the visibility set

  plot ref amp
will plots the amplitude of the ref datasets.

  plot ref[1,13] phase
will plot the phase of baseline 1-13 of ref.

  add sum ref src
will add the ref and src spectra sets, and produce a new spectra set called 'sum'.  

PARAMETERS

vis
Name of the input visibility dataset. No default.
line
Standard line-type specification. See the help on "line" for more information.
script
Text file of commands to execute. The default is to interactively prompt at the terminal.
device
Plotting device. Default is /xs. The plotting device can be overridden on the MBANAL prompt.


 

Index

NAME
PERSON RESPONSIBLE
CATEGORIES
DESCRIPTION
PARAMETERS

This document was created by man2html, using the manual pages.
Time: 18:35:38 GMT, July 05, 2011