Implementation of a noise reduction circuit for spaceflight IR spectrometers

1 July 1992

proceedings article
Published by SPIE-Intl Soc Optical Eng

p. 247-256
https://doi.org/10.1117/12.60514

Abstract

The paper discusses the implementation and analysis of a correlated triple sampling circuit using analog subtractor/integrators. The software and test setup for noise measurements are also described. The correlation circuitry is part of the signal chain for a 256-element InSb line array used in the Visible and Infrared Mapping Spectrometer. Using a focal-plane array (FPA) simulator, system noise measurements of 0.7 DN are obtained. A test setup for FPA/SPE (signal processing electronics) characterization along with noise measurements is demonstrated.

Keywords

ELECTRONICS
SIGNAL TO NOISE RATIO
SIGNAL PROCESSING
DENOISING
NOISE MEASUREMENT
SPECTROMETERS
ANALOG CIRCUITS
NOISE REDUCTION
MULTIPLEXING
INTEGRATORS
INFRARED

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