LIDAR method for measuring speeds and LIDAR device with time-controlled detection

摘要

The invention relates to a method for light detecting and ranging (LIDAR) measurement of speeds, in which a laser beam is directed at the medium to be measured, and radiation which is subsequently emitted from the medium (16) is measured by a detector. In order to optimize the measurement, a spatial measurement range can be selected by activation and/or deactivation of the detector for at least one predetermined or regulated time duration of less than about 500 μs after emission of a laser pulse to the medium to be measured. Furthermore, a direct reception Doppler LIDAR apparatus can be used to perform the method.