Long-path method: computer code LPM

Konstantin M. Firsov; Mikhail Yu. Kataev; Artur A. Mitsel; Igor V. Ptashnik; Vladimir V. Zuev

doi:10.1117/12.219643

15 September 1995 Long-path method: computer code LPM

Konstantin M. Firsov, Mikhail Yu. Kataev, Artur A. Mitsel, Igor V. Ptashnik, Vladimir V. Zuev

Proceedings Volume 2505, Lidar and Atmospheric Sensing; (1995) https://doi.org/10.1117/12.219643
Event: European Symposium on Optics for Environmental and Public Safety, 1995, Munich, Germany

Abstract

The dialog program LPM (long-path method) is intended for imitative modeling of the concentration gas analysis (H₂O, CO₂, O₃, NH₃, C₂H₄) with the path double-wave gas analyzer, equipped with two tunable CO2-lasers. Modeling is designed for four laser systems using the isotopes of CO₂. While modeling the program provides: 1) the calculation of transmittance for a sounding path at wavelengths 'on-line' and 'off-line'; 2) the calculation of atmospheric signals at wavelengths 'on-line' and 'off-line'; 3) the distortion of a signal with a random number for imitation of measuring noise; 4) the calculation of gas concentration from the inverse problem while imitating the sounding of a single gas; 5) the calculation of concentration of several gases (up to five gases) by using the simultaneous signal processing for several pairs of wavelengths (imitation of sounding of several gases). In addition, the program determines: i) optimal pairs of wavelengths; ii) the gas concentration reconstruction error from the sounding data, including the measuring error and the systematic error.

Citation Download Citation

Konstantin M. Firsov, Mikhail Yu. Kataev, Artur A. Mitsel, Igor V. Ptashnik, and Vladimir V. Zuev "Long-path method: computer code LPM", Proc. SPIE 2505, Lidar and Atmospheric Sensing, (15 September 1995); https://doi.org/10.1117/12.219643

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