By using backward difference of space-time intensity correlation function with respect to time delay, the two-dimensional velocity vector of a moving diffuser can be measured.
利用远场时变散斑空-时强度相关函致的有限差商可以测量散射体运动的二维速度矢量。
From standardized model, attach importance to space and time, study the action of the correlation function on the critical large fluctuations.
从规格化模型出发，考虑空间因素和时间因素，定义相关函数并考察相关函数在临界点的表现及其与“巨涨落”形成的关系。
The specific space-time intensity correlation function of dynamic speckle has been derived and opens out the mechanism of the dynamic speckle modulated by ultrasound in scattering medium.
通过数学运算和近似处理，得到了动态散斑强度涨落的空-时相关函数的解析表达式，从理论上揭示了散斑受超声调制的过程，对散射介质中的声光调制机制做出了新的诠释。
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