3 ms·
Sadly, not all ACC and CAS deployments are created equal. Tesla uses a 77ghz RADAR that has 0.1° of accuracy on the azimuth for the far range radar at a beam sp
by areoform 8y ago
Sadly, not all ACC and CAS deployments are created equal. Tesla uses a 77ghz RADAR that has 0.1° of accuracy on the azimuth for the far range radar at a beam spread of 6° and 0.2° for 9°. The near RADAR resolves to between 0.3° to 5° for the close one. They can pick out objects at a resolution of 40cm for the long range RADAR and down to 5cm short range. http://www.compotrade.ru/i/pdf/ARS404-21_ARS408-21_en_V1.03.pdf http://www.compotrade.ru/i/pdf/ARS404-21_ARS408-21_en_V1.03....
Not all manufacturers use such high specced RADAR as you can see in this comparison sheet there are cheaper options to pick from that don’t offer anywhere close to this angular accuracy and resolution https://autonomoustuff.com/wp-content/uploads/2018/02/RADAR-Comp-Chart-2018.pdf https://autonomoustuff.com/wp-content/uploads/2018/02/RADAR-...
The manufacturer is probably using 24ghz RADAR which is legacy technology and is being discontinued due to lower accuracy. There are software tweaks available to reduce false positives for legacy tech but most manufacturers don’t deploy them.
See: https://e2e.ti.com/blogs_/b/behind_the_wheel/archive/2017/10/25/why-are-automotive-radar-systems-moving-from-24ghz-to-77ghz https://e2e.ti.com/blogs_/b/behind_the_wheel/archive/2017/10...