5 ms·
That is not accurate. In fact one of the key features of radar processing is to find objects in the clutter, usually by filtering on Doppler shifts. As far ba
by dingaling 8y ago
That is not accurate. In fact one of the key features of radar processing is to find objects in the clutter, usually by filtering on Doppler shifts.
As far back as the 1970s helicopter-mounted radars like Saiga were able to detect power lines and vertical masts. That one could do so when moving up to 270 knots and weighed 53kg.
- btilly 8y agoFor radar detecting a power line against the sky is easy. Detecting a power line against a wall is not. The same radar set that worked these wonders while flying would have been absolutely useless for a ground based vehicle.
- tremon 8y agoBut a car's radar doesn't need to detect a power line against a wall; it only needs to reliably detect the wall...
- btilly 8y agoActually it needed to detect a crash barrier against a background of lots of other stuff that was also stationary. The easier that you distinguish the signal you want from the signal that you don't, the easier it is to make decisions. For radar, that is far, far easier with moving objects than stationary ones.