Laser radar detection state monitoring system and method for high-rise atmosphere metal layer

Abstract

The invention relates to a laser radar detection state monitoring system and method for a metal layer of an upper atmosphere. The system comprises a metal layer laser radar, a data acquisition device, an echo signal cross judgment system, a comprehensive judgment system and a radar system correction device, according to the method, echo signals are received through a metal layer laser radar, the echo signals are collected through a data collection device, the echo signals are discriminated through an echo signal cross judgment system, and the number of Rayleigh echo photons and the number of resonance fluorescence echo photons of the metal layer laser radar are calculated according to the processed data. The metal layer laser radar detection data quality and the detection state are judged through a comprehensive judgment system according to the calculated echo photon number, and an instruction is given; and performing test correction on the metal layer laser radar through a radar system correction device according to the test correction instruction until the comprehensive judgment system confirms that the data quality is qualified. According to the invention, the metal layer laser radar detects and verifies the data quality at the same time.

Description

technical field [0001] The invention relates to the technical field of laser radar detection state discrimination and laser radar detection data quality discrimination, in particular to a laser radar detection state monitoring system and method for a high-level atmospheric metal layer. Background technique [0002] The area of ​​75km-110km is called the Mesopause / Lower Thermosphere (MLT), where metal atomic ion layers such as sodium, potassium, lithium, iron, calcium, calcium ions, magnesium, and nickel are distributed. The detection blind area of ​​ground-based radio equipment, so detailed detection data cannot be obtained to analyze the ionosphere-thermosphere coupling relationship in this area. Lidar can use these metal atomic ions as tracers to detect and obtain high-resolution detection data, which provides an effective detection method for the study of the coupling between the middle and upper atmosphere and the ionosphere. [0003] The detection of metal composition ...

AI Technical Summary

Problems solved by technology

[0002] The area of ​​75km-110km is called mesotope / lower thermosphere region (MLT), where sodium, potassium, lithium, iron, calcium, calcium ions, magnesium, nickel and other metal atomic ion layers are distributed. This region is located in the satellite remote sensing and The detection blind zone of ground-based radio equipment, so it is impossible to obtain detailed detection data to analyze the ionosphere-thermosphere coupling relationship in this area

During the continuous operation of the laser radar, if the equipment is in a stable operating state, the observers will basically not perform real-time inversion of the data, and rarely check the quality of the observed data in real time

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