Full-height laser radar for detecting atmosphere wind field, temperature and density

Abstract

The invention discloses a full-height laser radar for detecting atmosphere wind field, temperature and density. The laser radar is composed of a laser emitting unit (1), an optical receiving unit (2) and a signal detecting unit (3). The technologies of secondary frequency doubling and optical multiplexing, double-optical fiber focal plane beam splitting, three-direction laser beam switching, time sequence and data inversion fusion are organically combined to form the full-height laser radar for detecting atmosphere wind field, temperature and density. The full-height laser radar for detecting atmosphere wind field, temperature and density disclosed by the invention has the advantages of scientific solution, high system integration degree, good automation degree, working reliability and convenience in application, and the like, and provides a high-performance detecting measure for medium to high atmosphere research and medium to high atmosphere environment monitoring.

Description

technical field [0001] The invention relates to a laser radar, in particular to a laser radar for simultaneous detection of atmospheric wind field, temperature and density in a range from near ground to 110 kilometers in height. Background technique [0002] The segment from the near-surface to the 110-kilometer atmosphere is an important link in the sun-earth relationship chain, and it is also an important field of atmospheric science and space environment research. Due to its unique advantages such as high temporal and spatial resolution, high detection sensitivity, and no blind area for atmospheric detection, lidar has become an essential means for atmospheric detection in this layer. Simultaneous measurement of full-elevation atmospheric wind field, temperature, and density not only has extremely important scientific value in understanding the dynamics of the Earth's atmosphere, photochemical processes, and global climate change, but also has important implications for s...

AI Technical Summary

Problems solved by technology

[0007] But so far, there has been no report on the simultaneous detection of the full-elevation wind field, temperature and density by a single lidar

[0008] If the above-mentioned multiple laser radar devices are simply stacked together to realize simultaneous detection of full-elevation wind field, temperature and density, this simple combination of multiple lasers, multiple telescopes, and multiple acquisition cards will lead to complex systems and high costs on the one hand. High maintenance costs; on the other hand, due to the consistency and stability of multiple laser radar devices, additional errors will be generated in the accuracy of full-elevation data inversion, thereby reducing the detection accuracy and reliability of the system

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