Optical Propagation Through The Atmosphere
This document covers how atmospheric turbulence, scattering, and absorption degrade optical systems (like lasers and imaging), and provides the core formulas to measure and correct those distortions.
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Atmospheric Distortions: Covers how turbulence, air molecules, and particles cause light loss and wave degradation. Core Metrics: Defines key parameters like Fried's parameter (r0), isoplanatic angle (θ0), Rytov number, and Greenwood/Tyler frequencies. Spectral Models: Outlines Kolmogorov and Modified von Kármán power density spectrum models. Attenuation: Explains total light loss (γ) using combined molecular/aerosol absorption (α) and scattering (σ).