Statistical properties of atmospheric emission in the infrared. II - Atmospheric noise correlation

Details Statistical properties of atmospheric emission in the infrared. II - Atmospheric noise correlation Statistical properties of atmospheric emission in the infrared. II - Atmospheric noise correlation

Apr 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978a%26a....65..199b&link_type=abstract

Astronomy and Astrophysics, vol. 65, no. 2, Apr. 1978, p. 199-205. In French.

Astronomy and Astrophysics

Astrophysics

6

Atmospheric Radiation, Electromagnetic Noise, Infrared Spectrophotometers, Infrared Telescopes, Statistical Correlation, Data Acquisition, Focal Plane Devices, Noise Spectra, Spectral Correlation

Scientific paper

An investigation is made of the statistical properties of atmospheric emission in the infrared range. The study is based on data collected by a 193-cm infrared telescope simultaneously observing two points on the focal plane at 3.7, 8.6, and 10.0 microns. The data indicate that sky noise fluctuations are correlated for a two arcmin separation on the sky and even more so for separations less than two arcmin. The width of the correlation function varies from 5 to 100 ms. Variations in pupil aperture from 0.90-1.85 m are not observed to produce significant effects.

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