Kalman filters are literally everywhere in the industry. If there is a radar or data fusion involved, you can be pretty sure there are Kalman filters. I know a

Kalman filters are literally everywhere in the industry. If there is a radar or data fusion involved, you can be pretty sure there are Kalman filters. I know a researcher whose most quoted article is just him applying fancy new methods to actual industrial datasets and showing they perform worse than a Kalman filter. What you wrote is akin to someone explaining to students doing signal processing that they should stay away from Fourier transforms.