On using adaptive filtering to extract the absorption cross section of SO/sub 2/ in "DALAS" systems

In this paper, an adaptive filter routine based on adaptive line enhancement is used to effectively extract the absorption coefficient of SO/sub 2/ 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.<
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