Lidar-Doppler method of direct reception and Lidar-Doppler device of direct reception

摘要

Method for Lidar-Doppler measurement of speeds by direct reception for an aircraft to incorporate directly from the measurement signals to the flight control in order to stabilize an external current modification, where a laser beam (15) is directed over the medium (16) to be measured and then the radiation (18) irradiated from the medium (16) is measured by the detector (35), comprising the following steps: a) emission of a multiplicity of laser pulses per measurement (52) , eb) integration of a multiplicity of pulses (51, 81a, 81b, 81c) by measurement (52) received with the detector (35), where the laser pulses are emitted with a repetition rate, which remains one or several orders of magnitude above the detection rate, and where the laser pulses by measurement are emitted with a frequency greater than or equal to approximately 1 kHz, characterized by the stage: c) control of the number of pulses (51, 81a, 81b, 81c) laser to integrate or integrated by measurement in the detector (35), where the control takes place depending on the intensity of the radiation (18) coming from the medium (16).