A multi-field-of-view marine lidar and its method for choosing the best field of view

Abstract

The invention discloses a multi-view angle ocean laser radar and a view angle preferential selection method thereof. According to the invention, by use of the multi-view field ocean laser radar whichworks in the blue and green light wave bands, a parameter sensitivity evaluation method is established; the view angle of a multi-view angle ocean laser radar system is preferentially selected; and under scattering effects of strong scatters like water body for many times, the vertical distribution characteristics of parameters of the water body can be still highly precisely remotely measured. Inthis way, the disadvantage of model mismatching of the traditional multi-view angle ocean laser radar under scattering effects of ocean water body for many times is overcome; by establishing the parameter sensitivity evaluation method, the view angle of the multi-view angle ocean laser radar system is preferentially selected; and the optimal water body parameter inversion accuracy can be acquired.

Description

technical field [0001] The invention belongs to the technical field of laser radar, and in particular relates to a marine laser radar with multiple viewing angles and a method for optimizing the viewing angles thereof. Background technique [0002] The ocean covers 71% of the earth's surface, but only 5% of the ocean has been explored by humans. The ocean provides abundant organisms, minerals, space resources and marine energy, and plays an important role in global climate regulation and geobiochemical cycles; as the starting point of the marine food chain, marine plants including algae and other phytoplankton mainly live At the surface, photosynthesis produces half the oxygen that all land organisms breathe, while oceans absorb a quarter of all terrestrial carbon dioxide emissions. With the increasing development of the economy, marine environmental problems such as land-based pollutant discharge, eutrophication in local sea areas, and overfishing have become increasingly ...

AI Technical Summary

Problems solved by technology

The laser has a strong multiple scattering effect when it is transmitted in water, which causes the expansion of the laser beam in time and space, and increases the complexity of the echo signal. The single scattering model used by traditional lidar is difficult to accurately reflect the actual situation. , is no longer suitable for high-precision marine lidar inversion process

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