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.
© 1999 Optical Society of America
(010.3640) Atmospheric and oceanic optics : Lidar
(030.1670) Coherence and statistical optics : Coherent optical effects
(030.6140) Coherence and statistical optics : Speckle
(280.0280) Remote sensing and sensors : Remote sensing and sensors
(280.3640) Remote sensing and sensors : Lidar
Rod Frehlich, "Autonomous Beam Alignment for Coherent Doppler Lidar With Multielement Detectors," Appl. Opt. 38, 6927-6941 (1999)