19 September 2013 Improvement in the sensitivity of methane detection using a double fast Fourier transform-based filter
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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, Samira Mahdi, Ed Wilson, Ed Wilson, Youhua Chen, Youhua Chen, Gary Anderson, 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); doi: 10.1117/12.2041333; https://doi.org/10.1117/12.2041333
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