Ahmad Esmaielzadeh Kandjani, Matthew J. Griffin, Rajesh Ramanathan, Samuel J. Ippolito, Suresh K. Bhargava and Vipul Bansal A new paradigm for signal processing of Raman spectra using a smoothing free algorithm: Coupling continuous wavelet transform with signal removal method Journal of Raman Spectroscopy 44
In this research, we show a new smoothing-free algorithm for background correction of noisy Raman spectra by combining continuous wavelet transform (CWT) and signal removal method (SRM) approaches. In this approach, the CWT is applied to detect the peak characteristics while the latter is used to remove the peak components and estimating background of the spectrum. The application of the current algorithm on Raman spectra showed the ability to estimate background with accuracy of 94% with RMSE lower than 0.2.
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