SCULIB_COMPRESS_DEMOD - get demodulated data for a bolometer and coadd jiggles in each integration

Description:

This routine selects data for a specified bolometer from a demodulated data array, and coadds the results for each jiggle in each integration to give an average for that integration. Data with bad quality are ignored. The variance on the average will also be derived; set equal to the variance on the input data if only one jiggle contributes to the average, otherwise calculated from the spread of the input points about the mean.

Invocation:

CALL SCULIB_COMPRESS_DEMOD (N_BOLS, N_JIGS, N_INTS, IN_DATA, ADC_INDEX, CHAN_INDEX, INT_INDEX, ADC, CHAN, OUT_DATA, OUT_VARIANCE, OUT_QUALITY, STATUS)

Arguments:

N_BOLS = INTEGER (Given)

number of bolometers measured

N_JIGS = INTEGER (Given)

number of jiggles in pattern

N_INTS = INTEGER (Given)

number of integrations taken

IN_DATA (4, N_BOLS, N_JIGS $*$ N_INTS)

= REAL (Given) the demodulated data; 1=data, 2=variance, 3=calibrator, 4=quality

ADC_INDEX (N_BOLS) = INTEGER (Given)

the ADC numbers of the measured bolometers

CHAN_INDEX (N_BOLS) = INTEGER (Given)

the channel numbers of the measured bolometers

INT_INDEX (N_INTS) = INTEGER (Given)

the k index in IN_DATA of the first jiggle of each integration

ADC = INTEGER (Given)

the ADC number of the requested bolometer

CHAN = INTEGER (Given)

the channel number of the requested bolometer

OUT_DATA (N_INTS) = REAL (Returned)

the values for each integration averaged over the jiggles

OUT_VARIANCE (N_INTS) = REAL (Returned)

the variance on OUT_DATA

OUT_QUALITY (N_INTS) = INTEGER (Returned)

the quality on OUT_DATA

STATUS = INTEGER (Given and returned)

global status

Notes:

Only works for data where SWITCH_PER_EXP=1, EXP_PER_INT=1 and N_MEASUREMENTS=1.

Copyright

Copyright ©1995,1996,1997,1998,1999 Particle Physics and Astronomy Research Council. All Rights Reserved.