[6] Chen Da, Shao Xueguang, Hu Bin, et al . A Background noise elimination method for quantitative calibration of near infrared spectra[J]. Analytica Chimica Acta, 2004, 511 (1):37—45.
[7] Tan Hu-Wei, Brown S D. Wavelet analysis applied to removing non-constant varying spectroscopic background in multivariate calibration [J]. Journal of Chemometrics, 2002, 16 (5):228—240.
[8] Centner V, Massart D L, De Noord O E, et al . Elimination of uninformative variables for multivariate calibration[J]. Analytical chemistry, 1996, 68 (21):3851—3858.
[9] Jouan-Rimbaud D, Walczak B, Poppi R J, et al . Application of wavelet transform to extract the relevant component from spectral data for multivariate calibration[J]. Analytical chemistry, 1997, 69 (21):4317—4323.