Methods for Determination of Mean Speckle Size in Simulated Speckle Pattern
, , oraz
17 cze 2014
O artykule
Data publikacji: 17 cze 2014
Zakres stron: 177 - 182
Otrzymano: 09 sie 2013
Przyjęty: 10 cze 2014
DOI: https://doi.org/10.2478/msr-2014-0024
Słowa kluczowe
© by I. Hamarová
This article is distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
This paper deals with computation of mean speckle size in a speckle pattern generated through a numerical simulation of speckle after reflection of a Gaussian beam off a rough object’s surface. Within this simulation various speckle patterns are obtained by means of change in a parameter of the Gaussian beam. The mean speckle size is computed through two approaches using both the two-dimensional and the one-dimensional normalized autocorrelation function in intensity. Additionally, we propose a distinct optimization of the determination of the mean speckle size by reduction of intensity values representing detected speckle patterns. Results of the determination of the mean speckle size are compared with theoretical predictions