BBCNEWS BBC News June 4, 2024 21:50:00
Are moving relatively slowly or stationary, and so the radar will simply filter them out. the wider you make those kind of velocity gates in terms of what the radar is looking at and what it's disregarding, the more clutter you'll have to deal with, and so the better processing you'll require in order to get usable results for military purposes. what's happened since the chinese spy balloon incident in the us is that the us appear to have reprogrammed a lot of their surveillance radars for air defence purposes with much, much wider velocity gates. so, they're suddenly seeing a lot of sort of f...