分析此散斑图像的二阶统计特性，导出了强度变化的相关函数和表面粗糙度参数之间的关系。
The relation between the correlation function of intensity variation and surface roughness parameter is derived through analyzing the second-order statistical properties of the speckle image.
将一维的表面肌电信号转换为二维的散点图，在这二维的平面空间中研究散点在一周360度的各个方向上的分布情况，提出了象限信息熵的概念。
Converte the one dimension time series into two dimension spot figure, then study the distribution of the spot around the 360 degree directions, compute the quadrant information entropy.
证实了本系统设计的合理性和适用性，也对散斑相关测量表面粗糙度理论进行了较好的实验验证。
The rationality and the applicability of this system are proved experimentally. It also makes us to be sure of the theory of surface roughness measurement by laser speckle correlation.
分析了用光刻胶记录激光散斑来制作粗糙度参数可控表面的方法，并成功地制作了一批样品。
A method of fabricating rough surfaces of known statistical parameters by exposing the photoresist to laser speckle patterns is analysed in this paper. A set of samples have been made successfully.
通过分析结合模拟结果，认为减小屏表面的相关长度，在扫描方向压窄激光光斑可以减小该系统中的散斑对比度。
The theoretical results show that a smaller correlation length of screen surface and the narrowing of laser beam in scanning direction can reduce speckle contrast for this system.
通过分析结合模拟结果，认为减小屏表面的相关长度，在扫描方向压窄激光光斑可以减小该系统中的散斑对比度。
The theoretical results show that a smaller correlation length of screen surface and the narrowing of laser beam in scanning direction can reduce speckle contrast for this system.
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