Title :
On using adaptive filtering to extract the absorption cross section of SO2 in “DALAS” systems
Author :
Wang, L. ; Younan, N.H. ; Monts, D.L.
Author_Institution :
Dept. of Phys. & Astron., Mississippi State Univ., MS, USA
Abstract :
In this paper, an adaptive filter routine based on adaptive line enhancement is used to effectively extract the absorption coefficient of SO2 in a differential absorption laser spectroscopy system. The ALE technique requires no a priori knowledge of the signal nor of the noise. Results for raw laser data obtained from this system is presented to illustrate the applicability of the technique
Keywords :
absorption coefficients; adaptive filters; chemical variables measurement; noise; spectrochemical analysis; spectroscopy; sulphur compounds; ultraviolet spectra; 300 nm; DALAS; SO2; absorption coefficient; absorption cross section; adaptive filtering; adaptive line enhancement; differential absorption laser spectroscopy system; laser data; Absorption; Adaptive filters; Instruments; Laser noise; Line enhancers; Noise level; Noise reduction; Pump lasers; Signal to noise ratio; Spectroscopy;
Conference_Titel :
System Theory, 1995., Proceedings of the Twenty-Seventh Southeastern Symposium on
Conference_Location :
Starkville, MS
Print_ISBN :
0-8186-6985-3
DOI :
10.1109/SSST.1995.390603
