Atmospheric refraction effects on optical-infrared sensor performance in a littoral-maritime environment
article
During a number of transmission experiments over littoral waters, quantitative measurements of atmospheric
refraction phenomena were carried out to determine the range performance of optical–IR sensors.
Examples of distortion and intensity gain generated by spatial variations of the atmospheric refractive
index are shown. A high-precision ray-tracing model has been developed for better understanding of the
phenomena and to satisfy the requirements for accuracy of the meteorological data used in refraction
models. The output of the model includes the propagation function, the intensity gain, and details of the
ray curvature and of the optical phase behavior along the path between the target and the observer.
Examples of measured transmission data and their interpretation are presented
refraction phenomena were carried out to determine the range performance of optical–IR sensors.
Examples of distortion and intensity gain generated by spatial variations of the atmospheric refractive
index are shown. A high-precision ray-tracing model has been developed for better understanding of the
phenomena and to satisfy the requirements for accuracy of the meteorological data used in refraction
models. The output of the model includes the propagation function, the intensity gain, and details of the
ray curvature and of the optical phase behavior along the path between the target and the observer.
Examples of measured transmission data and their interpretation are presented
TNO Identifier
221839
Source
Applied Optics, 43(December 1), pp. 6293-6303.
Pages
6293-6303
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