Application of independent component analysis method in real-time spectral analysis of gaseous mixtures for acousto-optical spectrometers based on differential optical absorption spectroscopy

A. V. Fadeyev; V. E. Pozhar

doi:10.1117/12.974426

1 November 2012 Application of independent component analysis method in real-time spectral analysis of gaseous mixtures for acousto-optical spectrometers based on differential optical absorption spectroscopy

A. V. Fadeyev, V. E. Pozhar

Author Affiliations +

Proceedings Volume 8535, Optics in Atmospheric Propagation and Adaptive Systems XV; 85350C (2012) https://doi.org/10.1117/12.974426
Event: SPIE Remote Sensing, 2012, Edinburgh, United Kingdom

Abstract

It is discussed the reliability problem of time-optimized method for remote optical spectral analysis of gas-polluted ambient air. The method based on differential optical absorption spectroscopy (DOAS) enables fragmentary spectrum registration (FSR) and is suitable for random-spectral-access (RSA) optical spectrometers like acousto-optical (AO) ones. Here, it is proposed the algorithm based on statistical method of independent component analysis (ICA) for estimation of a correctness of absorption spectral lines selection for FSR-method. Implementations of ICA method for RSA-based real-time adaptive systems are considered. Numerical simulations are presented with use of real spectra detected by the trace gas monitoring system GAOS based on AO spectrometer.

Citation Download Citation

A. V. Fadeyev and V. E. Pozhar "Application of independent component analysis method in real-time spectral analysis of gaseous mixtures for acousto-optical spectrometers based on differential optical absorption spectroscopy", Proc. SPIE 8535, Optics in Atmospheric Propagation and Adaptive Systems XV, 85350C (1 November 2012); https://doi.org/10.1117/12.974426

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