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arXiv · 2611.08300

Polarization cross-talk from non-stationary sources of image jitter

R. Casini·A. G. de Wijn
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Abstract

We generalize a previous formulation for the estimation of polarization cross-talk induced by atmospheric seeing to the case of image jitter that must be described as a non-stationary, and generally non-isotropic, random process. We demonstrate how the newly derived formalism converges towards the previous one in the limit of stationary random image jitter. In the case of non-stationary processes, we compare the predictions of the two formalisms, and illustrate the salient differences. For the sake of demonstration, we adopt for our analysis a specific example of power-spectral density derived from a circulant auto-correlation function, which describes a class of stationary random processes periodic over the length of the time series, and which we successively modified by the insertion of off-diagonal power spectral features at different frequencies in order to test the extended modeling framework for the estimation of polarization cross-talk.

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R. Casini, A. G. de Wijn. 2026-11-05. Polarization cross-talk from non-stationary sources of image jitter. https://arxiv.org/abs/2611.08300

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