3 ms·
Well, if we're talking about radar in a moving car, it's the other vehicles moving at the same speed that appear stationary. Non-moving vehicles are seen as ap
by y1n0 2y ago
Well, if we're talking about radar in a moving car, it's the other vehicles moving at the same speed that appear stationary.
Non-moving vehicles are seen as approaching you at whatever speed you are moving at. Along with all the other things you mentioned.
So they all have doppler shift but the "stationary" things approaching your car at your speed actually have much higher shift than the traffic around you.
- porphyra 2y agoYea, and they are designed to filter out actually stationary things by ignoring anything that's coming at you at the same speed as the current car speed (from measuring wheel rotation).