Effect of offing fog on laser transmittance

GAO Wen-jing; DOU Mao-sen; LI Jin-liang; WANG Lei; ZANG Shou-hong

doi:10.3969/j.issn.1001-3806.2011.05.019

In order to study the effect of fog on laser transmission, the near-infrared extinction characteristic of fog was analyzed by means of theoretical analysis and experimental measurement. The measurement and simulated data for laser atmosphere transmittance attenuation characteristics were obtained under the same conditions of frog at different visibility. The results show that the fog is the major affecting factor for laser atmosphere transmittance on ocean environment, the extinction coefficient caused by fog is in the order of 10-1km-1 or 100km-1, the attenuation caused by fog is decuple, even several decades times of that caused by the atmosphere molecular scattering and absorption，the extinction caused by fog is more than 85% ratio to the total extinction. The empirical constant C was revised combing the measurement data and the empirical expression of attenuation coefficient at 1.06m laser was obtained at different visibility. The results play important reference role in scientific evaluation of the efficiency of laser countermeasure equipment.

Effect of offing fog on laser transmittance

1. 91404 Unit, People's Liberation Army, Qinhuangdao 066000, China

Received Date: 2010-11-25

Accepted Date: 2011-01-29

Available Online: 2011-09-25

Abstract: In order to study the effect of fog on laser transmission, the near-infrared extinction characteristic of fog was analyzed by means of theoretical analysis and experimental measurement. The measurement and simulated data for laser atmosphere transmittance attenuation characteristics were obtained under the same conditions of frog at different visibility. The results show that the fog is the major affecting factor for laser atmosphere transmittance on ocean environment, the extinction coefficient caused by fog is in the order of 10-1km-1 or 100km-1, the attenuation caused by fog is decuple, even several decades times of that caused by the atmosphere molecular scattering and absorption，the extinction caused by fog is more than 85% ratio to the total extinction. The empirical constant C was revised combing the measurement data and the empirical expression of attenuation coefficient at 1.06m laser was obtained at different visibility. The results play important reference role in scientific evaluation of the efficiency of laser countermeasure equipment.

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Reference (14)

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Effect of offing fog on laser transmittance

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通讯作者: 陈斌, bchen63@163.com

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