Improvement in the sensitivity of methane detection using a double fast Fourier transform-based filter

Samira Mahdi; Ed Wilson; Youhua Chen; Gary Anderson

doi:10.1117/12.2041333

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19 September 2013 Improvement in the sensitivity of methane detection using a double fast Fourier transform-based filter

Samira Mahdi, Ed Wilson, Youhua Chen, Gary Anderson

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Proceedings Volume 8868, Infrared Sensors, Devices, and Applications III; 88680A (2013) https://doi.org/10.1117/12.2041333
Event: SPIE Optical Engineering + Applications, 2013, San Diego, California, United States

Abstract

A multi-reflection cell has been employed to increase the sensitivity of the detection of methane gas. However, as the requirements of the detection system need to work on a low frequency range, the influence of the 1/f noise will be considered. This paper deal with this problem by investing the signal processing methods using Fast Fourier Transform (FFT) results have been shown an improvements of about 75% in the methane gas readings.

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Samira Mahdi, Ed Wilson, Youhua Chen, and Gary Anderson "Improvement in the sensitivity of methane detection using a double fast Fourier transform-based filter", Proc. SPIE 8868, Infrared Sensors, Devices, and Applications III, 88680A (19 September 2013); https://doi.org/10.1117/12.2041333

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