Prediction Of Effects Of Weather On Image Quality Propagated Through The Atmosphere

N S Kopeika; I Kogan; R Yisraeli; I Dinstein

doi:10.1117/12.945775

10 August 1988 Prediction Of Effects Of Weather On Image Quality Propagated Through The Atmosphere

N S Kopeika, I Kogan, R Yisraeli, I Dinstein

Proceedings Volume 0926, Optical, Infrared, Millimeter Wave Propagation Engineering; (1988) https://doi.org/10.1117/12.945775
Event: 1988 Technical Symposium on Optics, Electro-Optics, and Sensors, 1988, Orlando, FL, United States

Abstract

Using atmospheric modulation transfer function area (MTFA) as a single-valued numerical criterion for image quality propagated through the atmosphere horizontally near the ground, a statistical study of atmospheric imaging data accumulated over a three year period has led to the determination of regression ceofficients with which to quantitatively predict image quality as a function of wavelength, over the 400 - 1000 nm wavelength region, according to weather forecast. Utilization of this procedure is quite simple. One simply plugs in expected values for windspeed, air temperature, and relative humidity in the regression coefficient expression for MTFA. The larger the expected MTFA, the better the expected image quality. Two sets of regression coefficient data have been obtained, one each for desert and non-desert climates, corresponding to summer and winter data here. Preliminary experimentation over a different line-of-sight indicates the accuracy of the prediction is fairly reliable for the summer or desert model.

Citation Download Citation

N S Kopeika, I Kogan, R Yisraeli, and I Dinstein "Prediction Of Effects Of Weather On Image Quality Propagated Through The Atmosphere", Proc. SPIE 0926, Optical, Infrared, Millimeter Wave Propagation Engineering, (10 August 1988); https://doi.org/10.1117/12.945775

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KEYWORDS

Spatial frequencies

Image quality

Meteorology

Modulation transfer functions

Atmospheric propagation

Aerosols

Humidity

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