Originally Posted by
mocoman
Scuzi;
It all sounds very 'intelligent' but still reliant on the system knowing where the aircraft is in space.
I don't quite understand how the VSL sub-system 'knows' that BAW123 is in the BNN hold and thus adds it to the displayed hold list. Is position information not an ADS_B-only feature?
Does the software rely on position information from existing radar technology and then integrate that with the extended MODE-S information to create a 'picture'?
Every Aircraft has an individual registration/signature number. Similar to the ones on cars. So when a particular aircrafts Mode S is interrogated you get the correct info.
This is coupled with the capture area around each holding stack.
You can also individually 'hook' an aircraft and see IAS, magnetic heading, climb and descent rates.