Re:Czech Passive Radar Detecting B-2 at 150 miles (2015)
by DarkmSparks on Saturday March 14, 2020 @07:07PM
(#22579467)
the low frequency radar thing relates to the active radar in the missile warhead. Not accurate enough for hit to kill missiles, but plenty for modern shaped charge warheads that only need to get within 250 meters or so of the target for a kill, and completely irrelevant for warheads supplemented with optical targeting that only need to be within 5 miles clear line of sight to confirm a lock.
Not at all. Check out the VLBI technique from radio astronomy, it's not hard to tell that there are two discrete signals.
But that's not really the point: you can see stealth aircraft already with lower frequency radars, just not well enough to shoot them down. It's hard to imagine this passive technique being good enough to shoot them down, either.
https://en.wikipedia.org/wiki/Stealth_technology#Low-frequen...