Atmospheric laser occultation signal generation and detection equipment

Abstract

The invention discloses atmosphere laser occultation signal generation and detection equipment and belongs to the technical field of atmospheric remote sensing measurement. In order to solve the problem that characteristic gas components and concentrations cannot be measured in the existing occultation signal generation system, the atmosphere laser occultation signal generation and detection equipment comprises a frequency and power stabilizing circuit, a quantum well laser array, a beam coupler, an optical fiber isolator, a power amplifier, an optical transmitting antenna, a first optical filter, a first collimating mirror, a first two-dimensional galvanometer, a second optical filter, a first coupling lens, a first beacon beam laser, a second coupling lens, a first imaging camera, an optical receiving antenna, a third optical filter, a second collimating mirror, a second two-dimensional galvanometer, a fourth optical filter, a third coupling lens, a second beacon beam laser, a fourth coupling lens, a second imaging camera, a third collimating mirror, a cylindrical mirror, a diffraction grating, an imaging reflector, an imaging CCD, a signal processing circuit and a data inversion module. The equipment has wide applications in the fields of atmospheric chemistry, global climate change, military battlefield aircraft monitoring and the like.

Description

technical field [0001] The invention relates to a laser occultation signal generation and detection device, in particular to an atmospheric laser occultation detection device for measuring a temperature field, a wind field, and a concentration of characteristic gas components, and belongs to the technical field of atmospheric remote sensing measurement. Background technique [0002] Occultation technology is one of many atmospheric remote sensing measurement methods, which is of great value to the monitoring of atmospheric chemistry and global climate change. The existing occultation technology uses the radio signal as the carrier. The specific working process is that when the radio signal passes through the planetary atmosphere, due to the existence of the refractive index gradient, the radio signal will be bent. Using this bending information, the atmospheric refractive index can be retrieved , and under certain approximate conditions, the corresponding atmospheric physica...

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Problems solved by technology

[0004] In order to solve the problem that the occultation signal of the existing occultation signal generation system is a radio signal and cannot measure the composition and concentration of atmospheric characteristic gas, the present invention proposes an atmospheric laser occultation signal generation and detection device

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