Manpage of mbanal
Section: User Commands (1)
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mbanal - Analyse multibeam data
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.
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]
Commands can take either spectra sets of the spectra
of an individual baseline. An individual baseline is
given in the form:
where 'name' is the name of the spectra set and m and n
are indices of the elements involved. For example
is the spectra of beams 1 correlated with 13 of the
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'.
Name of the input visibility dataset. No default.
Standard line-type specification. See the help on "line"
for more information.
Text file of commands to execute. The default is to
interactively prompt at the terminal.
Plotting device. Default is /xs. The plotting device can
be overridden on the MBANAL prompt.
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Time: 18:35:38 GMT, July 05, 2011