Abstract

The technique of signal clipping is applied to speckle-intensity correlation. The relationship between the correlation function of clipped speckle and the magnitude of the correlation coefficient of the optical field is derived using Fourier method with the assumption of Gaussian field statistics. The error in measurement of the correlation coefficient resulting from the use of a finite number of samples of the clipped signals is analyzed, and experimental results are presented.

© 1985 Optical Society of America

Correlation measurements using clipped laser speckle

Joseph Marron and G. Michael Morris
Appl. Opt. 25(5) 789-793 (1986)

Maximum dynamic range of clipped correlation of integrated laser speckle intensity

Akifumi Ogiwara and Junji Ohtsubo
J. Opt. Soc. Am. A 5(3) 403-405 (1988)

Accuracy of peak detection in speckle clipping correlation

Akifumi Ogiwara and Junji Ohtsubo
Appl. Opt. 29(17) 2632-2639 (1990)

Clipped correlation functions of aperture integrated laser speckle

Richard Barakat
Appl. Opt. 25(21) 3885-3888 (1986)

Accuracy of Fourier-magnitude estimation from speckle intensity correlation

Joseph C. Marron
J. Opt. Soc. Am. A 5(6) 864-870 (1988)