Originally Posted by
Moi/
Cheers, fully understand that...
It starts by knowing its position (Not GPS weapon. Could be value = zero, zero & zero), and of course it knows where it needs to go.
It knows its velocity, in say North, East & Down movements, therefore can calculate where is was, then where its been, and can use that to know where it needs to go...
The problem comes when your gyros drift....there are backups such as terrain matching