Baseline naming convention

Baselines can be specified by the index of the baseline or a regular expression describing a baseline name.

A full baseline name is composed of two antenna names separated by a colon (':'). A fully qualified baseline name between the upper-side band, 175-MHz polarization signals from antennas C11 and C12 would be

C11-USB-175:C12-USB-175

Any of these fields can be regular expressions. Hence to choose all baselines with antenna C11 upper side-band signals from either of the polarization, one would use the baseline name as:

C11-USB-.+:.+

If only the first field of antenna name is given, the others are taken to be the wild card characters.

If second fully qualified antenna names is missing from the baseline name, it is also replaced by wild card.

These selections will exclude all self correlations. Also, if a baseline has already got selected in a previous selection, it will be excluded from all later selections.

To select the self correlations, one must add 'A' to be beginning of the antenna names. In such a case, the name of the second antenna is redundant and therefore not required.

Examples

1. Baseline name to select all baselines with with C11 = C11

2. Baseline name to select the self correlation of C11 = C11:C11 or AC11

3. Baseline name select the self correlation of C11, 130-MHz polarization channel from both side bands = AC11-.+-130

4. Baseline name to select all self correlations = A.

5. Baseline name to select all lower side-band baselines with C11 = C11-USB-.+:. or C11-USB-.+.

6. Baseline name to select all baselines in the database = .

7. Baseline name to select all central square baselines with C02-USB-175 = C02-USB-175:C.+

8. Baseline name to select all baselines of C02-USB-175 with only arm antennas = C02-USB-175:[EWS].+