摘要
对形成正态散斑的两个条件进行了计算机模拟．结果表明，当表面高度起伏的标准偏差σｈ＞１．２λ、有效漫射面元数目Ｎ＞８时，就能产生正态散斑．
A computer simulation is conducted to obtain the quantitative premises of producing normal speckle.The results show when the standard deviation δ h surface height fluctuation is larger than 1.2 times illumination wavelength and the number of micro topology cells containted in a point spread is more than 8,a normal speckle can be formed,and it is independent from the statistical property of the object surface.
出处
《四川大学学报（自然科学版）》
CAS
CSCD
北大核心
1997年第1期56-61,共6页
Journal of Sichuan University(Natural Science Edition)
关键词
激光散斑
正态散斑
计算机模拟
laser speckle, normal speckle, computer simulation
