The telecover test: A quality assurance tool for the optical part of a lidar system 1/2

A test is described, which serves as a self-check of the optical
part of a lidar system. Several lidar signals using different parts
of the lidar telescope are compared. Differences in these signals
indicate range dependent transmission changes of the optical
receiver, resulting in signal distortion. A systematic approach
including comparison with ray tracing simulations of the optical
system can point out causes of the deviations.