Studies on the statistical properties of phase difference of speckle fields |
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| Authors: | Qiankai Wang |
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| Affiliation: | 1. School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China;2. Institute of Artificial Intelligence, University of Science and Technology Beijing, Beijing 100083, China;3. Aerospace Research Institute of Material & Processing Technology, Beijing 100076, China |
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| Abstract: | According to the relations between the phase and the complex speckle amplitude, a phase angle is constructed to estimate the free standard deviation of phase difference of speckle fields. The relative accurate amending expression of evaluating the free standard deviation of phase difference is derived for the Gaussian speckle fields. The statistical properties of phase difference are studied for the Gaussian speckle fields of diffraction fields. The theoretical values of the free standard deviation of phase difference for the case of fully developed speckle fields are compared with the numerical values of the free standard deviation which are calculated from the Gaussian theory of the fully developed speckle fields. |
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