Modeling and analysis of path-averaging noise in phasor-based phase reconstruction

James L. Fox; Thomas F. Krile

doi:10.1117/12.255073

25 October 1996 Modeling and analysis of path-averaging noise in phasor-based phase reconstruction

James L. Fox, Thomas F. Krile

Proceedings Volume 2827, Digital Image Recovery and Synthesis III; (1996) https://doi.org/10.1117/12.255073
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

Phase reconstruction algorithms, which determine phase from measured phase differences, are used in several areas, such as adaptive optics and speckle imaging. The purpose of this study is to examine the effects of noisy phase difference measurement inputs on reconstructor output phase noise. An analytic procedure for finding the probability density function, and hence the variance and gain, of the output noise in a general phasor-based path averaging operation is given. Also, noise performance comparisons between the phasor-based and optimal linear techniques are shown.

Citation Download Citation

James L. Fox and Thomas F. Krile "Modeling and analysis of path-averaging noise in phasor-based phase reconstruction", Proc. SPIE 2827, Digital Image Recovery and Synthesis III, (25 October 1996); https://doi.org/10.1117/12.255073

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