散斑参考束型散斑干涉计量中阴影滤波技术的统计模型

Statistical Model of Shadow Filtering in the Speckle Reference Beam Interferometry

本文用统计学方法对散斑参考束型散斑干涉计量中阴影滤波技术进行了理论分析。在提出计量过程的描述、统计学方法的采用及信息表征形式的基本观点的基础上,建立了信息分布的统计模型,导出了变形信息的可测条件,并通过与传统实验结果的比较验证了本文的结论。

The shadow filtering in the speckle reference beam interferometry is theoretically analysed with statistical method in this paper.Based on the description of the speckle measurement process,the use of the statistical method and the representation of deformation information,the shadow filtering statistical model of the information distribution is proposed and the measurable condition of the deformation information is derived.This conclusion is demonstrated by a comparison with the classical experimental results.