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Interferometry

For cross-correlations, the data reduction is made using CLIC. The following sequence is used

CLIC\FILE BO 'name'.IPB
CLIC\SET PROJECT FLUX
CLIC\FIND
CLIC\DEVICE
CLIC\SET BAN USB LSB
CLIC\SET SUBBANDS C01 TO C10
CLIC\SET X I_FREQUENCY
CLIC\SET Y AMPLITUDE PHASE
! Calibrate RF passband to use DSB mode
CLIC\FIND/PROC COR/SOUR 'Strong_Quasar'
CLIC\PLOT
CLIC\SOLVE RF/PL
CLIC\FIND/PROC CORR/SOUR *
CLIC\STORE RF
CLIC\SET RF ON CHAN
! Use DSB unless gain ratio is very different from 1
CLIC\SET BAN DSB
CLIC\SET FLUX 'Quasar' Flux    ! Specify flux of reference quasar
CLIC\SET FLUX 'Quasar' Flux    ! More than one allowed
CLIC\SOLVE FLUX
CLIC\PRINT FLUX

For pointing scans, the option /FLUX file in the command:

CLIC\SOLVE POINTING [/PLOT] /FLUX file
processes an output file containing the same information and using the same format as the single-dish flux file created by CLASS. This file may then read directly by the FLUX program.



Gildas manager 2018-12-11