AIPS HELP file for BSTST in 31DEC25
As of Wed Dec 11 6:17:44 2024
BSTST: Test corrections for frequency switching
INPUTS
IMSIZE (1) Number channels
BCHAN First channel observed
ECHAN Last channel observed
NGAUSS Number Gaussians
GMAX Maxima
GPOS (1) channel
GWIDTH (1) width in channels
DPARM Throws to try: 0 -> quit
FLUX Noise to add to diff spectrum
FACTOR Make spectra with throws
FACTOR times assumed
APARM (1) + / - throw length ratio
(2) + / - peak strength
(3) + / - width ratio
(4) max low chan not signal
(5) min high chan not signal
(6) > 0 => fix-scale plot
(7) min of model/fit plot
(8) max of model/fit plot
(9) min of plus-minus plot
(10) max of plus-minus plot
NITER 0.0 Number Clean iterations
GAIN 0.0 Clean gain
PRTLEV Print those with differences
> PRTLEV
< 0 => do plot instead
INNAME File to which to attach plot
INCLASS File to which to attach plot
INSEQ File to which to attach plot
INDISK File to which to attach plot
XYRATIO X/Y plot ratio 0 -> 1
DOTV Plot to TV or file?
GRCHAN 0.0 8.0 Graphics channel for plot
HELP SECTION
BSTST
Task: Test correction of freq-switched data. The EKH solution is
performed and, optionally, a Clean solution is also performed.
Adverbs:
IMSIZE.....Number of channels, (2) ignored
BCHAN......First channel actually observed
ECHAN......Last channel actually observed
NGAUSS.....Number components (1 - 4)
GMAX.......Peak values
GPOS.......(1,n) channel of peak, (2,n) ignored
GWIDTH.....(1,n) FWHM in channels, (2,*), (3,*) ignored
DPARM......Throws to try in channels, 0 ends list
-dparm(j)/2 used for plus, +dparm(j)/2 used for minus
FLUX.......Noise to add: <= 0 => none. This is the noise added to the
difference spectrum. Each separate spectrum therefore has
FLUX/sqrt(2) as the rms noise.
FACTOR.....Compute the spectra with throws FACTOR * DPARM(i), but
solve them witb throws of DPARM(i). 0 => 1.
PRTLEV.....Prints only those channels for which the reconstructed
spectrum differs from the model by more than PRTLEV.
No default.
< 0 => do plot rather than print
NITER......Clean iterations. 0 -> No Clean solution.
GAIN.......Loop gain in Clean
INNAME.....File to which to attach plot file (name)
INCLASS....File to which to attach plot file (class)
INSEQ......File to which to attach plot file (seq #)
INDISK.....File to which to attach plot file (disk)
XYRATIO....Ratio of X to Y. 0 -> 1. Values larger than 1 spread
the plots in the Y direction.
DOTV.......> 0 => plot on TV, else make plot files
GRCHAN.....Graphics channel for plot
EXPLAIN SECTION