Determination of plume temperature distribution based on the ratios of the radiation intensities of multiple CO2 lines

S. Cięszczyk

doi:10.1117/12.2178835

5 May 2015 Determination of plume temperature distribution based on the ratios of the radiation intensities of multiple CO₂ lines

S. Cięszczyk

Author Affiliations +

Proceedings Volume 9506, Optical Sensors 2015; 950623 (2015) https://doi.org/10.1117/12.2178835
Event: SPIE Optics + Optoelectronics, 2015, Prague, Czech Republic

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).

Citation Download Citation

S. Cięszczyk "Determination of plume temperature distribution based on the ratios of the radiation intensities of multiple CO₂ lines", Proc. SPIE 9506, Optical Sensors 2015, 950623 (5 May 2015); https://doi.org/10.1117/12.2178835

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available