POLARIZATION Polarization information.

Name

Format

Units

Measure

Comments

Columns

Data description

NUM_CORR

Int Number of correlation cross-products Nc

Data

CORR_TYPE

Int( Nc) Polarization of correlation

CORR_PRODUCT

Int(2, Nc) Receptor cross-products

Flags

FLAG_ROW

Bool The row flag

Notes: This table defines the polarization labeling of the data; it is directly indexed from the DATA_DESCRIPTION table via POLARIZATION_ID, the DATA_DESCRIPTION_ID being indexed in the DATA_DESCRIPTION_ARRAY collection in the CONFIG_DESCRIPTION table.
NUM_CORR
The number of correlation polarization products. For example (RR) this value would be 1, for (RR,LL) it would be 2 and for (XX,YY,XY,YX) it would be 4, etc.  
CORR_TYPE
An integer for each correlation product indicating the Stokes type as defined in the Stokes class enumeration.    
CORR_PRODUCT
Pair of integer for each correlation product, specifying the receptor from which the signal originated. The receptor polarization is defined in the POLARIZATION_TYPE  column in the FEED table.
An example would be (0,0), (0,1), (1,0), (1,1) to specify all correlations between two receptors.
FLAG_ROW
Row flag. True if the data in this row are not valid, but does not imply the flagging of any DATA in MAIN.