초록 ▼

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, o

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 the ratios and a series of values stored in an archive or a data base (21).

대표청구항 ▼

A multi-channel fluorescence lidar device comprising: laser beam source means for emission of a laser beam pulse; optical receiving means for focussing back scattered radiation; optical channel separator means for separating a backscattered fluorescence signal corresponding to each single laser puls

A multi-channel fluorescence lidar device comprising: laser beam source means for emission of a laser beam pulse; optical receiving means for focussing back scattered radiation; optical channel separator means for separating a backscattered fluorescence signal corresponding to each single laser pulse into a predetermined number of channels, to form intensity signals each of said predetermined number of channels corresponding to predetermined wavelength band values, said intensity signals being proportional to the intensity of said backscattered fluorescence signal, corresponding to each single laser pulse, in each of said predetermined wavelength band values; signal processing means for receiving said intensity signals and for forming a plurality of ratio signals, said plurality of ratio signals comprising a signal based on the ratio of each intensity signal to each other intensity signal for each single laser pulse; and comparison means for comparing the value of each ratio signal to values stored in a memory.