Constructive action of the speckle noise in a coherent imaging system

被引：17

作者：

Blanchard, Solenna

Rousseau, David

Gindre, Denis

Chapeau-Blondeau, Francois

机构：

[1] Univ Angers, Lab Ingn Syst Automatises, F-49000 Angers, France

[2] Univ Angers, CNRS, UMR 6136, Etud Proprietes Opt Mat & Applicat, F-49000 Angers, France

来源：

OPTICS LETTERS | 2007年 / 32卷 / 14期

关键词：

D O I：

10.1364/OL.32.001983

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A coherent imaging system with speckle noise is devised and analyzed. This demonstrates the possibility of improving the nonlinear transmission of a coherent image by increasing the level of the multiplicative speckle noise. This noise-assisted image transmission is a novel instance of stochastic resonance phenomena by which nonlinear signal processing benefits from a constructive action of noise. (c) 2007 Optical Society of America.

引用

页码：1983 / 1985

页数：3

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