4 ms·
Radar struggles to identify stationary vehicles. Their reflected signals hide in noise from road signs, roadside vegetation, and the road surface itself.
by mdavidn 2y ago
Radar struggles to identify stationary vehicles. Their reflected signals hide in noise from road signs, roadside vegetation, and the road surface itself.
- lutorm 2y agoIt's worse than that, I think. The typical radar beam is so wide that it can't discriminate between in the road and near the road, so the Doppler selection is the only reason it even works at all. This is very noticeable on our car when you observe how far away laterally a car you've been following has to turn, e.g. when it takes an offramp, before the ACC ignores it.
- t0mas88 2y agoWhat brand and model year is that? The first (15 years ago) system from BMW did that too, but the newer ones (2019 model, don't know about the years in between) know which lane the other car is in. There is a setting on European models on whether to overtake on the right or not, so it knows the traffic ahead is in your lane or in the next lane over.