ALEXANDRIA, Va., June 17 -- United States Patent no. 12,313,792, issued on May 27, was assigned to THALES (Courbevoie, France).

"Frequency-modulated coherent lidar" was invented by Patrick Feneyrou (Palaiseau, France), Jerome Bourderionnet (Palaiseau, France) and Daniel Dolfi (Orsay, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for processing a signal from a coherent lidar comprising a periodically frequency-modulated coherent source (L), the method includes the following steps: A decomposing each modulation period indexed j into a plurality of intervals indexed i, and determining, for each interval Iij, an elementary power spectral density DSP(i,j) of the beat signal over the interval, B d...