Hannah Cairo found herself stuck on a problem that wouldn’t leave her mind. It wasn’t a regular homework assignment—it was a decades-old mathematical puzzle believed to be true by leading experts in ...

For millimeter wave (MMW)-FMCW radar estimates the direction-of-arrival (DOA) of targets, we present the root-MUSIC harmonic retrieval joint Multiple Regression (RMHRMR) algorithm. First, the target's ...