| 基于自相关函数的激光散斑统计半径的测量 |
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| 引用本文： | 熊伦,张国平,葛镜. 基于自相关函数的激光散斑统计半径的测量[J]. 光学与光电技术, 2008, 6(1): 59-61 |
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| 作者姓名： | 熊伦 张国平 葛镜 |
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| 作者单位： | 华中师范大学物理与科学技术学院,湖北,武汉,430079;武汉工程大学理学院,湖北,武汉,430073;武汉工程大学理学院,湖北,武汉,430073;华中师范大学物理与科学技术学院,湖北,武汉,430079 |
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| 摘 要： | 为了测量激光散斑的统计半径,运用统计光学理论推导了二维近场散斑光强的归一化自相关函数,并提出了通过求解散斑图像自相关拟合函数的系数来计算激光散斑统计半径的一种测量方法,利用该测量方法编制的测量软件可以方便地计算出激光散斑的统计半径.通过对尺寸已知的模拟散斑的测量,测量结果与实际尺寸相吻合,证实了该测量方法的可行性.
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| 关 键 词： | 激光散斑 自相关函数 统计半径 拟合函数 |
| 文章编号： | 1672-3392（2008）01-0059-03 |
| 收稿时间： | 2007-07-25 |
| 修稿时间： | 2007-10-10 |
Measurement of Laser Speckle Statistical Radius Based on Self-Correlation Function |
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| XIONG Lun,ZHANG Guo-ping,GE Jing. Measurement of Laser Speckle Statistical Radius Based on Self-Correlation Function[J]. optics&optoelectronic technology, 2008, 6(1): 59-61 |
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| Authors: | XIONG Lun ZHANG Guo-ping GE Jing |
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| Affiliation: | XIONG Lun ZHANG Guo-ping GE Jing College of Physical Science Technology Huazhong Normal University,Wuhan 430079,China School of Science,Wuhan Institute of Technology,Wuhan 430073,China |
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| Abstract: | In order to measure laser speckle statistical radius, the normalized self-correlation function of two-dimensional by using statistical optics theory is deduced. A kind of measure method which can calculate laser speckle statistical radius is given by getting the ratio of speckle image self-correlation fitting function. The laser speckle statistical radius can be easily calculated by measurement software. The result of the measurement is in agreement with the fact radius by measuring the subjunctive speckle whose radius is pre-known. The result shows that the measure method is feasibility. |
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| Keywords: | laser speckle self-correlation ruction statistical radius fitting function |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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