Abstract

Atmospheric propagation tests in support of electrooptics system development frequently require measurement of the atmospheric transmission at discrete frequencies or the average transmission for a finite spectral bandwidth. The conditions of the test may require that measurements be made over horizontal or slant paths, or even that a moving source be tracked. In many tests it is also necessary to acquire slant path atmospheric turbulence data. A measure of the transverse coherence length (r0), isoplanatic angle (θ0), and/or turbulence structure constant (Cn2) profile may be required. To address these needs, an extremely versatile mobile atmospheric profiling system (MAPS) has been designed and fabricated. Field tests are now being conducted and a variety of data have been collected. The MAPS, using a Fourier transform spectrometer, turbulence profile sensors, and an 0.8-m Coude telescope is described and examples of recent data are presented.

© 1985 Optical Society of America

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