Russian airborne lidar systems: comparative analysis and new ideas

摘要

Abstract: In recent years, owing to a lack of field experiment programs, the R&D in lidar remote sensing of natural waters in Russia is restricted almost entirely to laboratory development of novel elements for airborne systems and theoretical investigations. In this report a theoretical approach based on statistical formulation of signal detection problem is shown to provide an effective tool for comparison of different lidars (and separate elements) effectiveness for various applications - bathymetry, water column sounding, submerged objects detection, etc. The approach quite often leads to unexpected answers to `obvious' questions like Do one really needs a large input pupil for lidar receiver? What is optimal filter bandwidth and angle aperture? What is the best wavelength for oceanographic lidar?!40