A Spaceborne Ocean Atmospheric Parameter LiDAR Detection System

Abstract

A space-borne laser radar detection system for detecting marine atmosphere parameters comprises a tunable laser subsystem, a reception optical subsystem, a signal processing subsystem, a control and data processing subsystem, wherein the tunable laser subsystem generates 935nm, 761nm laser and irradiates the laser to the atmosphere above a sea, the reception optical subsystem separates two optical signals of different wavelengths from backward scattering signals after the laser is irradiated to the atmosphere, the signal processing subsystem carries out photoelectric conversion, amplification and analog-to-digital conversion on optical signals, and the control and data processing subsystem calculates marine atmosphere temperature, humidity and density according to the digital signals sent by the signal processing subsystem. Compared with the prior art, the space-borne laser radar detection system can detect atmospheric temperature, humidity, density parameter distribution of the atmosphere above a sea, and plays an important role for researching meteorological environment above a sea, climate change, land-ocean air steam transmission, atmospheric flow and other natural science rules and improving offshore work and sea-crossing flight.

Description

technical field [0001] The invention relates to the field of active remote sensing detection of marine atmospheric temperature, humidity and density, in particular to a spaceborne marine atmospheric parameter laser radar detection system. Background technique [0002] The ocean area accounts for about 71% of the total surface area of ​​the earth. Obtaining and mastering the atmospheric parameters and climate environment over the ocean is extremely important for improving the understanding and research of the marine atmospheric environment. The main parameters of the marine atmospheric environment include temperature, humidity, density, etc. These parameters are useful for the study of scientific and natural laws such as the meteorological environment over the ocean, climate change, water vapor transmission between land and sea, and atmospheric motion, as well as improving marine operations and aircraft flying over the ocean. are all significant. [0003] Commonly used remot...

AI Technical Summary

Problems solved by technology

[0003] Commonly used remote sensing equipment for atmospheric detection includes passive remote sensing equipment and ground-based lidar. However, passive remote sensing equipment cannot perform all-weather and all-weather measurements, and the detection accuracy is low, and the three-dimensional information of the atmosphere cannot be obtained.

However, ground-based lidar is limited by the detection range and cannot perform high-precision detection of the atmosphere on a global scale including the ocean.

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