Other
Scientific paper
Jan 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975stin...7515517h&link_type=abstract
The optical system of a balloon telescope for high resolution Fourier spectroscopy in the infrared spectral region NASA Transl.
Other
Astronomical Spectroscopy, Balloon Flight, Infrared Spectroscopy, Stratoscope Telescopes, Systems Analysis, Balloons, Design Analysis, Frequency Modulation, Signal To Noise Ratios, Wave Dispersion
Scientific paper
The selection and optimization of a dispersion element for a balloon-based high resolution infrared spectroscopy project are described. The signal to noise ratio for observations of interstellar sources, dust, and other sources is given. It is demonstrated that a lamella grid is superior to the Michelson interferometer. An analysis of the entire optical system is carried out. Expressions are derived for normalized noise power of the detector and perturbation radiation, and for the optimum modulation frequency. A rocking mirror configuration is adapted for the instrument.
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