High-resolution multichannel mm-wave radiometer for the detection of stratospheric ClO

1 September 1991

proceedings article
Published by SPIE-Intl Soc Optical Eng

Vol. 1491, 211-217
https://doi.org/10.1117/12.46664

Abstract

Millimeter-wave radiometers are being used in remote sensing of stratospheric trace gases. For constituents with relatively strong spectral lines (several K), for example, ozone and water vapor, a total power radiometer with a simple load-switch calibration technique may be sufficient. If the spectral lines are weaker, and the signal to noise ratio is smaller than 10-4, a balanced calibration technique should be applied. Unfortunately, this can not easily be realized in the millimeter-wave region. Therefore, a quasi-balanced noise source in the atmosphere itself is planned.© (1991) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.

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