An Improved Background-Correction Algorithm for Raman Spectroscopy Based on the Wavelet Transform

@article{Chi2018AnIB,
  title={An Improved Background-Correction Algorithm for Raman Spectroscopy Based on the Wavelet Transform},
  author={Mingbo Chi and Xinxin Han and Yong Xu and Yue Wang and Fengfeng Shu and Wenchao Zhou and Yihui Wu},
  journal={Applied Spectroscopy},
  year={2018},
  volume={73},
  pages={78 - 87}
}
In the traditional background correction algorithm based on the wavelet transform, approximation coefficients considered as frequency responses of background signal are usually set to zero. However, there are many meaningless negative values generated in the background-corrected spectrum because of the calibration errors of this algorithm. Intensities of some weak peaks even become negative and these peaks will disappear after the calibration of negative values. To solve these problems for the… CONTINUE READING

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