8 ms·
The article says it’s using doppler effect. > The velocity of the target also manifests as a frequency shift in the received chirp due to Doppler effect
by enchilada 2y ago
The article says it’s using doppler effect.
> The velocity of the target also manifests as a frequency shift in the received chirp due to Doppler effect
- KeplerBoy 2y agoSure but there's no doppler effect if the target moves tangentially to your radar.
- toast0 2y agoFor automotive radar, I'm not sure the requirement is to determine the true speed of the detected object. The requirement is to determine if the radar vehicle is likely to collide with the detected object. If the detected object is moving tangentially with the radar, relative velocity would be zero, because it's staying a fixed distance from the vehicle while both are in motion, and would seem to not be in the path of a collision.
- vikramskr 2y agoAuthor here: You can still use angle of arrival estimates from the MIMO antenna system to track the object. https://www.viksnewsletter.com/p/how-radar-measures-angle?r=222kot&utm_campaign=post&utm_medium=web https://www.viksnewsletter.com/p/how-radar-measures-angle?r=...