VELOCITY-MEASUREMENT OF THE DIFFUSE OBJECT BASED ON TIME-DIFFERENTIATED SPECKLE INTENSITY FLUCTUATIONS

被引：20

作者：

TAKAI, N

IWAI, T

USHIZAKA, T

ASAKURA, T

机构：

[1] Research Institute of Applied Electricity, Hokkaido University, Sapporo, Hokkaido

来源：

OPTICS COMMUNICATIONS | 1979年 / 30卷 / 03期

关键词：

D O I：

10.1016/0030-4018(79)90355-9

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

This paper proposes a new velocity measuring method for a moving diffuse object on the basis of the autocorrelation of time-differentiated speckle intensity fluctuations. The theoretical background and experimental verification of this method are given. The correlation length of time-differentiated speckle intensity fluctuations is defined by the point at which the correlation becomes zero. By means of the correlation length the object velocity is found to be accurately measured. © 1979.

引用

页码：287 / 292

页数：6

共 14 条

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