Abstract

The theory for atmospheric contrast reduction is extended to include the effects of spectral dependence for broadband optical signals. A result with the same form as the monochromatic theory is achieved and the broadband extinction coefficient is defined. A comparison of atmospheric transmittance for the broadband model with that for the single wavelength average transmittance indicates little error except for applications where the slant range is larger than the meteorological range.

© 1978 Optical Society of America

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