Differential fluorescence lidar and associated detection method

摘要

The multichannel fluorescence lidar comprises a source for the emission of a laser beam, an optical receiving system to focus the backscattered radiation, an optical channels separator and means for processing the detected signals; the device comprises means (15) for forming the ratio, two by two, of the signals originating from the optical channels separator (11), and means (17, 19) for making the comparison between the values of said ratios and a series of values stored in an archive (21).