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首页> 外文会议>Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing II; Proceedings of SPIE-The International Society for Optical Engineering; vol.6367 >Measurement simulation of spatial coherence and density degree by turbulence of aerosol and CO_2 in atmospheric environment
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Measurement simulation of spatial coherence and density degree by turbulence of aerosol and CO_2 in atmospheric environment

机译：大气环境中气溶胶和CO_2湍流对空间相干性和密度度的测量模拟

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摘要

Atmospheric turbulence is one of the important correction factors to evaluate the earth's surface using a sensor on a satellite. CO_2 and aerosol are selected as factors of turbulence. The effects of turbulence caused by CO_2 and aerosol on the light reflected from the earth's surface are estimated by measuring the degradation of spatial coherence of light in a chamber in which atmospheric turbulence is generated. Dry ice is used to generate carbon dioxide gas. Degradation of spatial coherence is measured in relation to the increase of CO_2 . Turbulence caused by aerosol is measured by density of smoke cigarettes. The spatial coherence of light in the chamber degrades in relation to the increase of aerosol and as a result the turbulence increases. The relation between the turbulence and the degree of spatial coherence is explained in a formula.
机译：大气湍流是使用卫星上的传感器评估地球表面的重要校正因素之一。选择CO_2和气溶胶作为湍流因素。通过测量在产生大气湍流的室内光的空间相干性的降低，可以估算出由CO_2和气溶胶引起的湍流对从地球表面反射的光的影响。干冰用于产生二氧化碳气体。测量空间相干性的下降与CO_2的增加有关。由烟雾引起的湍流通过烟的密度来测量。腔室中光的空间相干性相对于气溶胶的增加而降低，结果湍流增加。湍流和空间相干度之间的关系用公式解释。

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