I was watching a youtube video about the b2 this morning. It mentions that while it’s not completely invisible to radar, it only has a cross section about the size of a bee. It says that radars have to fine tune their displays to only show larger objects or else it would be too cluttered.
I guess my question is, why can’t they tune their displays to only show objects moving faster than ~ 300 mph?
In: Physics
A big part of it is signal to noise ratio. If the radar return is really low then it will blend in with the all the other radar noise that the system picks up. https://www.youtube.com/watch?v=hwX5oc9yv4M does a good job of explaining the detection problem.
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