LIDAR METHOD FOR MEASURING SPEEDS AND LIDAR DEVICE WITH TIME-CONTROLLED DETECTION

摘要

The invention relates to a method for the lidar measurement of speeds, a laser beam (15) being directed onto the medium (16) to be measured and the radiation (18) reflected by the medium (16) being measured by means of a detector (35). In order to optimize the measurement, a spatial measurement area (r1, r2) is adjusted by activating and/or deactivating the detector (35) by means of at least one predetermined or controlled duration (T1, T2) of less than approximately 500µs after emission of a laser pulse (40) onto the medium (16) to be measured. The invention further relates to a (direct detection Doppler) lidar device for carrying out said method.