大气相干长度测量中几个关键技术指标的分析

许文强; 宗飞; 强希文; 孙学金

大气相干长度测量中几个关键技术指标的分析

许文强^1,2, ,,
宗飞²,
强希文²,
孙学金¹

1.
解放军理工大学气象海洋学院,江苏南京 211101;
2.
西北核技术研究所,陕西西安 710024

详细信息

通讯作者:
许文强（1984-），男，新疆塔城人，硕士研究生，工程师，主要从事大气物理方面的研究。 Email：sybxwq@163.com

中图分类号: O437; TN246
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出版历程
- 刊出日期: 2013-05-15

Several critical qualifications in measurement ofatmospheric coherence length

1.
College of Meteorology and Oceanography,PLA University of Science and Technology,Nanjing 211101,China;
2.
Northwest Institute of Nuclear Technology,Xi-an 710024,China

摘要

摘要: 为规范大气相干长度的测量，保证测量数据的准确性，通过对大气相干长度测量中采样频率、采样时长、曝光时间等关键问题的分析，并结合国内外相关研究成果，确定了差分像运动测量仪的采样频率应不低于100 Hz、采样时长应不短于20 s ，单帧图像曝光时间应不长于沿测量光路的格林伍德时间常数，样本数应不少于2 000帧。
- 大气光学 /
- 技术指标 /
- 差分像运动测量法 /
- 大气相干长度
Abstract: In order to ensure the accuracy in measurement of atmospheric coherence length, it is necessary to specify qualifications of measurement. The qualifications of differential image motion monitor are determined through analysis of several critical problems such as sampring frequency, spampling time and exposure time in measurement of atmospheric coherence length, and combining with the result of domestic and foreign research, it is ensured that the sampling frequency should not be lower than 100 Hz, the sampling time should not be shorter than 20 s, the exposure time of single frame image should not be longer than the Greenwood time constant along with the measuring beam path, and the number of samples should not be less than 2 000 frames.
- atmospheric optics /
- qualification /
- differential image motion measurements /
- atmospheric coherence length

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参考文献(1)

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