Especially when most car radars are FMCW radars. They not only do know the speed, they also know the distance.
Some of the newest car radars can do some beam formimg, but not all.
Most models have multiple radars pointing in multiple directions as that's cheaper than AESA.
Only just recently have "affordable" beamformer's come to the market. And those target 5G basestations.
So the spec in most K/Ka-band models starts at 24.250GHz, where the 5G band starts.
While the licence free 24GHz band that the radars use is 24.000-24.250GHz.
If this was not bad enough there has been consistent push from regulators to get the car radars on the less congested 77GHz band.
And there's even less afforable beamformers for that band.
Might be time for some state sponsorship to have the beamforming asics, fpga designs for these bands. Although I might be missing something: once you're back down in your demodulated sampling frequency, your old beamformer should suffice? Or are we talking 'adc+demodulator+filter+beamforming' asic?
Some of the newest car radars can do some beam formimg, but not all.
Most models have multiple radars pointing in multiple directions as that's cheaper than AESA.
Only just recently have "affordable" beamformer's come to the market. And those target 5G basestations.
So the spec in most K/Ka-band models starts at 24.250GHz, where the 5G band starts. While the licence free 24GHz band that the radars use is 24.000-24.250GHz.
If this was not bad enough there has been consistent push from regulators to get the car radars on the less congested 77GHz band. And there's even less afforable beamformers for that band.