Abstract
The study is aimed at determining the optimal parameters of the elements of a two-channel near-IR lidar system. One of the first stages in the design and development of li-dar systems that solve the problems of remote gas analysis of the atmosphere is the calculation of the overlap function. As part of the study, numerical simulation of the overlapping function of the lidar system was carried out for various configurations of the transceiver path. The simulation results showed that when using a Mersenne telescope with specified parameters in the receiving part of the lidar, it is preferable to focus the laser radiation at a distance from the transmitting path in order to obtain a complete overlap of the field of view of the telescope and the laser beam while minimizing the "dead" zone of the lidar operation. The results obtained will be further applied in the development of the design of a two-channel lidar system for measuring the concentrations of greenhouse gases in the atmosphere.
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