An implementation of the method to estimate the direction of the laser beam emitted from ground to satellite is proposed. The implementation employs two boresight cameras to observe the backscattered light of the emitted beam. To carry out the proposed method, it is necessary to estimate the center line of the image of the scattered light from the laser beam taken by the boresight camera. A simple method to find the center line of the image of the backscattered light is also proposed. Since the accuracy of the estimation of the beam propagation direction should be known to design a free-space optical terminal, an experiment is performed to measure the angular error of the estimation by the proposed method.
Implementation of the method for estimating propagation direction of laser beam transmitted from ground to satellite, Page 1 of 2
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