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Proceedings Paper

Determination of plume temperature distribution based on the ratios of the radiation intensities of multiple CO2 lines
Author(s): S. Cięszczyk
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Paper Abstract

New inversion scheme for gas temperature distribution retrieval utilized CO2 spectrum between 2350 cm-1 and 2400 cm-1 is proposed. Inversion model is build base on neural networks. Considered spectral remote sensing method is commonly used for industrial and environmental monitoring. It is a passive single-ended sensor technique in which radiation intensity emerging from a studied object is analyzed. Quantitative investigation of heated gas radiation emission to determine temperature and gas mixture by infrared spectroscopy requires two components apart from optical radiation sensor. First appropriate spectral database and second efficient inversion techniques. In this study calculation of one-dimensional radiative transfer equation have been used for simulation of spectral radiation intensity. To increase quality of retrieval a spectrum preprocessing and feature extraction method is applied. Simulated spectra were parameterized and expressed as ratios of intensities of multiple rotational lines. Each neural network estimates temperature (NN response) at one point on studied path basing on given spectrum (NN input).

Paper Details

Date Published: 5 May 2015
PDF: 8 pages
Proc. SPIE 9506, Optical Sensors 2015, 950623 (5 May 2015); doi: 10.1117/12.2178835
Show Author Affiliations
S. Cięszczyk, Lublin Univ. of Technology (Poland)

Published in SPIE Proceedings Vol. 9506:
Optical Sensors 2015
Francesco Baldini; Jiri Homola; Robert A. Lieberman, Editor(s)

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