[evla-sw-discuss] Keeping track of spectral windows at the EVLA: SDM vs. BDF

[David Harland]

Michael Rupen wrote:
> ...
>
> 2- As to the ordering of swIndex, let's adopt the revisions suggested
> by Sonja & David:
>
> 1- swIndex is ordered according to the lower edge of the lowest
> frequency channel in each SpW (lower frequencies come first)
>
> 2- for remaining matches, give the lower swIndex to the SpW with
> the narrower total bandwidth
>
> 3- for remaining matches, give the lower swIndex to the SpW with
> more (hence narrower) channels
>
> 4- for remaining (exact) matches, the lower VCI sbid (subband ID)
> gets the lower swIndex
>
> ***This ordering should be based on the _output_ of the CBE, _after_
> any CBE processing such as smoothing-and-decimation, subselection of a
> group of channels, etc.*** The distinction is not relevant yet but
> will be in the future (months from now).

Asterisks always get my attention.

If the CBE processes affect # of channels, and that is part of the sort 
done by SSS, does OPT have info it needs to handle #3 in the sort order 
above?

Even if it does, can we just elim step 3 & use 1,2,4?