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Sologub
The problem of determining the recognition threshold of substances in the FTIR
Engineering Education # 04, April 2013 DOI: 10.7463/0413.0548098 Detection of substances with the use of their infrared spectra is carried out by means of statistical analysis of experimental and reference spectra. This analysis is conducted by calculating the correlation parameter. In this work dependences of correlation parameters of reference and noisy spectra on the signal-to-noise ratio were obtained. Dependence of substance recognition thresholds on the signal-to-noise ratio within the experimental spectra was obtained for the given probability of substance recognition. The authors consider the possibility of applying these dependences to calculation of recognition thresholds in view of the signal-to-noise ratio during the experiment.
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