...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?
First, I am not a specialist, but I'll try...
Gate Pull Off:
On first one the real target was marked, on second - gate pull off efect... If "Pechora" goes for the bite, range boresight must go with the pull off (on the video you will see the left indicator that range doesn't change according the jaming efect..
On the second one - not sure but "Wobble" must reveal the false target (when jamming generates a lot false target in the boresight... don't know the english word for this jamming)..