Autonomous beam alignment for coherent Doppler lidar with multielement detectors.
Autonomous beam alignment for coherent Doppler lidar requires accurate information about optical misalignment and optical aberrations. A multielement heterodyne detector provides the required information without a loss in overall system performance. The effects of statistical variations from the random backscattered field (speckle field) are determined with computer simulations for both ground-based operation with a fixed calibration target and for space-based operation with random target backscatter.
Frehlich
R
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Cooperative Institute for Research in the Environmental Sciences, Campus Box 216, University of Colorado, Boulder, Colorado 80309, USA. rgf@cires.colorado.edu