While a well-known use of this is sonar, ultrasonic sensors can also be put to use to make a radar-like system. This ultrasonic radar project is from [mircemk] who uses a small ultrasonic distance ...

MEMS (micro-electromechanical systems ... the project manager at Fraunhofer. But the ultrasonic sensor can do even more. It ...

[Andy] demonstrates building an ultrasonic anemometer using a cheap after-market parking distance sensor kit and an Arduino ... and wire in an Arduino Pro Micro and a few passives to take control ...