No it can’t...
Look an F-22 BOOM
I hope it can tell difference between friendly and ‘for’.
And 777s.
And inexact science at best and one which is especially challenged with determining altitude.
Not to mention a PIECE OF CAKE to spoof and make it look like hundred or even thousands of object swirling from all directions:)
This is NOTHING to fret over.
I gather, from the brief description (low frequency radio), that this "passive" system doesn't rely on reflected energy. I picture some sort of monitored array where disruptions can be detected, and the "timing" of the disruptions across the array can be used to triangulate position.
Obviously they’re disclosing this because they want to help the West to avoid wasting large sums of money on a useless technology. Their altruism is touching. In fact, you’d have to be touched to take their statements at face value.
They wish.
Additionally, I’m one of the first to complain about what we reveal to the enemy. But does anyone else get the sense that it’s often second generation stuff, even though it may be new to Boris, Fang, Jing and Li? And muzzles? Fugeddaboudit. They’re still in the 7th Century. I hope.
I remember reading in the book “Shadows of Steel” (Dale Brown) about how ‘stealth’ aircraft could be detected. This was in 1997. Basically, if one has a transmitter and a receiver anything fling between them will be noticed; even if it doesn’t REFLECT anything it must absorb them.
But it’s been many years since I read the book (Good stuff, though, if one likes patriotic techno thrillers)