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Proceedings Paper

New phase-stepping algorithm based on the self-consistent concept
Author(s): Chunlong Wei; Mingyi Chen; Yingjie Yu; Hongwei Guo; Guodong Li
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Paper Abstract

A new concept of self-consistency is proposed in this paper and then a new phase-stepping algorithm based on it is presented. If the phase steps between the grabbed data frames are known, the phase distributions of every data frame can be calculated by the modified conventional phase-stepping algorithm. On the other hand, the phase steps between data frames can be calculated through the calculated phase distributions of every data frame above. The known phase steps and the calculated phase steps should be consistent. This is so called self-consistent concept .By means of iterative method, we can easily gain the accurate phase steps while calculating the measured phase distribution. Numerical simulations and experimental results verify the insensitivity of new algorithm to the phasestepping error and automatic calibration of phase shifter.

Paper Details

Date Published: 7 March 2006
PDF: 10 pages
Proc. SPIE 4101, Laser Interferometry X: Techniques and Analysis, (7 March 2006); doi: 10.1117/12.498435
Show Author Affiliations
Chunlong Wei, Shanghai Univ. (China)
Mingyi Chen, Shanghai Univ. (China)
Yingjie Yu, Shanghai Univ. (China)
Hongwei Guo, Shanghai Univ. (China)
Guodong Li, Shanghai Univ. (China)

Published in SPIE Proceedings Vol. 4101:
Laser Interferometry X: Techniques and Analysis
Gordon M. Brown; Malgorzata Kujawinska; Werner P. O. Jueptner; Ryszard J. Pryputniewicz; Ryszard J. Pryputniewicz; Mitsuo Takeda, Editor(s)

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