Abstract

Interferogram data acquired using the focal plane of a Fourier transform infrared (FT-IR) spectrometer acquisition system was processed for the purpose of calculating the noise equivalent spectral radiation. This study introduces the composition of the acquisition system based on a focal plane FT-IR spectrometer and analyzes the cause of ordinate drifting and abscissa shifting. The influence of these problems on system noise is analyzed quantitatively through mathematical calculations. Correction algorithms and methods are introduced to solve these problems. These can correct the error of interferogram data based on the FT-IR acquisition system.

© 2018 Optical Society of America

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