A new detection method is presented for detecting the weak optical signal scattered back from a topographic target. The weak signal arriving from the topographic target is amplified by the frequency modulated transmitter laser of a LIDAR system and the amplified signal is mixed with the frequency shifted transmitter laser beam. The method is used in a differential absorption LIDAR for remote sensing of molecular air pollution.
|Number of pages||5|
|Journal||Spectrochimica Acta Part A: Molecular Spectroscopy|
|Publication status||Published - jan. 1992|
ASJC Scopus subject areas