Observation, Prediction, and Modeling Atmospheric Structure Effects on EO/IR Systems

Author: Michael J. Kendra, James Martin Griffin, Hilary E. "Ned" Snell and D. Donatelli
Date: 
September 10, 2006 - September 14, 2006
Type: 
Poster presentation
Venue: 
The Advanced Maui Optical and Space Surveillance Technologies Conference
Citation: 

Kendra, M.; Griffin, J.; Snell, H.; Donatelli, D.; Brown, J., 2006. Observation, Prediction, and Modeling Atmospheric Structure Effects on EO/IR Systems. The Advanced Maui Optical and Space Surveillance Technologies Conference, held in Wailea, Maui, Hawaii, September 10-14, 2006, Ed.: S. Ryan, The Maui Economic Development Board, p.E94

EO/IR sensors observing the battlespace environment through the earth's atmosphere can be adversely affected by spatial and temporal variations in atmospheric radiance and transmission along the sensor line of sight (LOS). The physics of stochastic fluctuations is largely understood, and the radiation transport theory and models that include stochastic effects exhibit high fidelity when compared to corresponding sensor measurements. Deterministic structure is not as well understood, however, and the associated radiance levels and variability are often significantly higher than those of the benign, stochastic background. Since the radiance measured by the sensor comes from both the object of interest and the radiating atmosphere and it can also be attenuated by the atmosphere along the optical path, atmospheric structure and clutter affect target acquisition, identification, discrimination, and tracking in ways that are difficult to assess.