Semi-analytic simulation of closed-form sources propagating through turbulence

Jason D. Schmidt; Jason A. Tellez; Gregory J. Gbur

doi:10.1117/12.2678717

3 October 2023 Semi-analytic simulation of closed-form sources propagating through turbulence

Jason D. Schmidt, Jason A. Tellez, Gregory J. Gbur

Proceedings Volume 12693, Unconventional Imaging, Sensing, and Adaptive Optics 2023; 126931I (2023) https://doi.org/10.1117/12.2678717
Event: SPIE Optical Engineering + Applications, 2023, San Diego, California, United States

Abstract

This paper extends a recent fast method for simulating optical propagation through random media like atmospheric turbulence. The previously published method simulates arbitrary sources propagating through two phase screens to an observation plane using a semi-analytic technique. The new advancement in this paper covers specific cases of sources with a known, closed-form solution for the non-turbulent field as a function of propagation distance. With the closed-form expressions, the authors did additional analytic evaluation, which leaves even less numerical work for the computer. This reduces the computation further than treating the source as arbitrary. Further, this semi-analytic method has been extended to propagate the wave through a simple optical system to an image plane. The specific cases of off-axis planar and spherical waves can be used to simulate a collection of point spread functions (PSFs) that are partially correlated across the field of view. Subsequently, these PSFs can be used with an extended scene’s reflectance array to synthesize an incoherent, anisoplanatic image.

Conference Presentation

Citation Download Citation

Jason D. Schmidt, Jason A. Tellez, and Gregory J. Gbur "Semi-analytic simulation of closed-form sources propagating through turbulence", Proc. SPIE 12693, Unconventional Imaging, Sensing, and Adaptive Optics 2023, 126931I (3 October 2023); https://doi.org/10.1117/12.2678717

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