Raman laser radar system device for atmospheric space three-dimensional temperature detection

Abstract

The invention provides a Raman laser radar system device for atmospheric space three-dimensional temperature detection. The device comprises a laser emission optical path system which carries out thebeam expanding and shaping of a laser beam, enables the laser beam to enter the atmosphere, and forms a back scattering signal which is received by an optical signal receiving system; the optical signal receiving system which is used for receiving original optical signals from the laser emission optical path system and transmitting the original optical signals to a light splitting system; the light splitting system which is used for filtering and screening the original optical signals, separating required optical signals with a specific wavelength and transmitting the optical signals to an optical signal conversion module; the optical signal conversion module which is used for receiving the optical signals screened and separated by the light splitting system and having the wavelength required by the system and converting the optical signals into electric signals; an electric signal processing system which processes the electric signals and transmits the processed electric signals to adata acquisition, calculation and processing system; and the data acquisition, calculation and processing system which is used for acquiring, processing and calculating the conditioned electric signals to obtain a final result. The signal receiving effect is improved, the detection distance is long, the precision is high, and the normal radar data can be ensured all day long.

Description

technical field [0001] The invention mainly relates to the technical field of laser radar, in particular to a Raman laser radar system device for three-dimensional temperature detection in atmospheric space. Background technique [0002] Atmospheric temperature is one of the basic meteorological parameters in the study of atmospheric environment, which describes the heat balance structure of the atmosphere. It plays an important role in the study of atmospheric physical phenomena, global warming, and space inversion layers, and is also an important model parameter for many atmospheric models. The atmospheric temperature throughout the day, combined with the spatial distribution and temporal evolution parameters of aerosols, is helpful for the study of cloud precipitation, climate change, and weather processes. Accurate atmospheric temperature detection is of great significance. [0003] At present, the main means of atmospheric vertical temperature detection are satellite ...

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Problems solved by technology

[0008] Aiming at the above defects of the existing technology, it solves the problems of low Raman signal-to-noise ratio, short detection distance, and low precision, and can obtain high-precision vertical d...

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