sdsidebandsplit – [EXPERIMENTAL] invoke sideband separation using FFT – single dish task

Description

[EXPERIMENTAL] SD sideband separation and supression task:

Invoke sideband separation / supression using FFT

Parameters

Title

Parameter	Default	Description
imagename	numpy.array( [  ] )	a list of names of input images
outfile	''	Prefix of output image name
overwrite	False	overwrite option
signalshift	numpy.array( [  ] )	a list of channel number shifts in signal side band
imageshift	numpy.array( [  ] )	a list of channel number shifts in image side band
getbothside	False	sideband separation (True) or supression (False)
refchan	float(0.0)	reference channel of spectral axis in image sideband
refval	''	frequency at the reference channel of spectral axis in image sideband (e.g., “100GHz”)
otherside	False	solve the solution of the other side band side and subtract the solution
threshold	float(0.2)	Rejection limit of solution

Parameter Explanations

imagename

numpy.array( [  ] )

a list of names of input images. At least two valid images are required for processing

outfile

''

Prefix of output image name.

A suffix, “.signalband” or “.imageband” is added to output image name depending on the side band side being solved.

overwrite

False

overwrite option

signalshift

numpy.array( [  ] )

a list of channel number shifts in signal side band.

The number of elements must be equal to that of imagename

imageshift

numpy.array( [  ] )

a list of channel number shifts in image side band.

The number of elements must be either zero or equal to that of imagename. In case of zero length array, the values are obtained from signalshift assuming the shifts are the same magnitude in opposite direction.

getbothside

False

sideband separation (True) or supression (False)

refchan

float(0.0)

reference channel of spectral axis in image sideband

refval

''

frequency at the reference channel of spectral axis in image sideband (e.g., “100GHz”)

otherside

False

solve the solution of the other side band side and subtract the solution

threshold

float(0.2)

Rejection limit of solution. The value must be greater than 0.0 and less than 1.0.