A Multi-Aperture Transceiver System of a Lidar with Narrow Field of View and Minimal Dead Zone

Abstract

Requirements are determined for the spontaneous Raman lidar transceiver system, designed for solving problems dealing with studying the atmospheric boundary layer and predicting dangerous smog situations. The optical scheme of a lidar transceiver system with a narrow field of view and minimal dead zone is synthesized. The results of computer simulation of the lidar overlap functions obtained by the ray tracing method for few optical schemes of the receiving optical system are presented. It is shown that when a multielement transceiver based on a combination of four receiving apertures of different diameters is used, a lidar sensing range can be from 5 to 3000 m for the dynamic range of the lidar response of no more than 10.