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qimager - Tool



Package synthesis
Module qimager


Postscript file available

tool for synthesis imaging


Description
qimager is an tool that accomplishes synthesis processing. A qimager must be constructed for each MeasurementSet for which one wishes to do processing. Multiple copies of qimager may be made at any time (provide they are given different names).

Constructors
qimager Construct an qimager tool
Functions
advise Advise (and optionally use) parameter values
approximatepsf Calculate approximate point spread functions
clean Calculate a deconvolved image with selected clean algorithm
close Close the qimager tool, with data written on disk, keeping qimager process running for future use
done Terminate the qimager process
exprmask Construct a mask image from a LEL expression
feather Feather together an interferometer and a single dish image in the Fourier plane
filter Apply additional weighting by filtering (u-v taper)
fitpsf Fit the point spread function, making psf image first if needed
linearmosaic Make a linear mosaic of several images
make Make an empty (i.e. blank) image
makeimage Calculate images by gridding, etc.
mem Calculate a deconvolved image with selected mem (maximum entropy) algorithm
nnls Calculate a deconvolved image using the NNLS algorithm
open Open a new MeasurementSet, for processing, closing current MeasurementSet
pb Applies or corrects for a primary beam
predict Predict the data from the specified model and componentlist
regionmask Construct a mask image from a region
residual Calculate the residual image with respect to current model and component list
restore Calculate the restored image with restored model, component list, and residuals
selfcal Self-calibrate the MeasurementSet using a calibrater tool and model+component list
sensitivity Calculate rms sensitivity
setbeam Set the beam parameters for clean restoration
setdata Set the data parameters selection for subsequent processing
setimage Set the image parameters for subsequent processing
setmfcontrol Set various cycle control parameters for multi-field and wide-field imageing.
setoptions Set some general options for subsequent processing
setscales Set the scale sizes for MultiScale Clean
setsdoptions Set some options for single dish processing
setvp Set the voltage pattern model for subsequent processing
smooth Calculate an image smoothed with a Gaussian beam
stop stop the currently executing function asap
summary Summarize the current state of the qimager tool
uvrange Select data within the limit of a given range
weight Apply additional weighting to the visibility weights




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2006-10-15