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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。
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.
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