I'll admit that I don't understand a few things going on there but it was great to see the system in action.
So why you don't asking?
Here goes then:
In the second video what was the Range Gate Pull Off impact, did it effect target tracking?
What is target 'Coherent Accumulator' & 'Wobble' modes?
I think it's perhaps time for me to dive into SAMSIM to get a better understanding. The Dvina is best for beginners right?