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Research on Radiance Measurements of Target and Background Based on FTIR

Jun Zhu

Abstract

Methods of target and background radiance measurements based on FTIR are discussed in this paper. Calibrating spectral response of system with blackbody, we can get instrument response function of the system. The influence of the background radiation and the atmospheric attenuation to the infrared radiation is considered. MODTRAN software is used to calculate atmospheric radiation and transmittance. Atmospheric transmittance and radiance spectra are provided.

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Available abstract

Key concepts: MODTRAN, Radiance, Black-body radiation, Transmittance, Remote sensing, Infrared window, Infrared, Radiation