Atmospheric turbulence optical model (ATOM) based on fractal theory

Holger M. Jaenisch; James W. Handley; Jim Scoggins; Marvin P. Carroll

doi:10.1117/12.177682

8 June 1994 Atmospheric turbulence optical model (ATOM) based on fractal theory

Holger M. Jaenisch, James W. Handley, Jim Scoggins, Marvin P. Carroll

Proceedings Volume 2120, Laser Beam Propagation and Control; (1994) https://doi.org/10.1117/12.177682
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

Abstract

An Atmospheric Turbulence Optical Model (ATOM) is presented that used cellular automata (CA) rules as the basis for modeling synthetic phase sheets. This method allows image fracture, scintillation and blur to be correctly models using the principle of convolution with a complex kernel derived from CA rules interaction. The model takes into account the changing distribution of turbules from micro-turbule domination at low altitudes to macro-domination at high altitudes. The wavelength of propagating images (such as a coherent laser beam) and the range are taken into account. The ATOM model is written in standard FORTRAN 77 and enables high-speed in-line calculation of atmospheric effects to be performed without resorting to computationally intensive solutions of Navier Stokes equations or C_n² profiles.

Citation Download Citation

Holger M. Jaenisch, James W. Handley, Jim Scoggins, and Marvin P. Carroll "Atmospheric turbulence optical model (ATOM) based on fractal theory", Proc. SPIE 2120, Laser Beam Propagation and Control, (8 June 1994); https://doi.org/10.1117/12.177682

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