Constructive action of the speckle noise in a coherent imaging system.
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.
Blanchard
Solenna
S
Laboratoire d'Ingénierie des Systèmes Automatisés, Université d'Aangers, 4900 Angers, France.
Rousseau
David
D
Gindre
Denis
D
Chapeau-Blondeau
François
F